cpal crash on alsa backend (`beep` example)

[richard-uk1]

I'm getting a crash on linux from cpal:

• Command: $ cargo run --example beep

• Stdout: thread 'main' panicked at 'hardware params could not be set: "Invalid argument"', libcore/result.rs:1009:5

• stack backtrace:

  ...snip...
  10: cpal::cpal_impl::set_hw_params_from_format
             at src/alsa/mod.rs:805
  11: cpal::cpal_impl::EventLoop::build_output_stream
             at src/alsa/mod.rs:700
  12: cpal::EventLoop::build_output_stream
             at ./src/lib.rs:434
  13: beep::main
             at examples/beep.rs:7
   ...snip...

[mitchmindtree]

That does seem strange as CPAL should just be using the default params with the default device here. Could you share some more info about your setup? E.g. your distro, desktop, version of alsa, is pulseaudio or jack running at the same, are you using an external soundcard?

[richard-uk1]

Yeah I'll post some info - see if it's helpful.

I run jack and pulseaudio - I wouldn't imagine that pa would interfere as it goes into jack and doesn't touch alsa. It may be that jack is the problem. It's annoying that you can't get a better error message from alsa than errno = 22. I might have a look through the alsa source to see if I can figure out why it's setting this errno.

$ uname -a
Linux 4.18.16-arch1-1-ARCH #1 SMP PREEMPT Sat Oct 20 22:06:45 UTC 2018 x86_64 GNU/Linux

$ cat /usr/include/alsa/version.h
#define SND_LIB_MAJOR		1 /**< major number of library version */
#define SND_LIB_MINOR		1 /**< minor number of library version */
#define SND_LIB_SUBMINOR	7 /**< subminor number of library version */
#define SND_LIB_EXTRAVER	1000000 /**< extra version number, used mainly for betas */
/** library version */
#define SND_LIB_VERSION_STR	"1.1.7"

$ cat /proc/asound/cards
 0 [Microphone     ]: USB-Audio - Yeti Stereo Microphone
                      Blue Microphones Yeti Stereo Microphone at usb-0000:00:1d.0-1.7, full speed
 1 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf3120000 irq 27
 2 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xf3080000 irq 17
 3 [O49            ]: USB-Audio - Oxygen 49
                      M-Audio Oxygen 49 at usb-0000:00:1d.0-1.5.1, full speed
 4 [USB            ]: USB-Audio - Scarlett 8i6 USB
                      Focusrite Scarlett 8i6 USB at usb-0000:00:1d.0-1.5.2, high speed

EDIT error code 22 is EINVAL (invalid argument) on at least linux, and alsa returns it as a negative.

[richard-uk1]

The enumerate example fails as well, but with more output that maybe is helpful:

• stderror

ALSA lib pcm_usb_stream.c:508:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:508:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map

• Backtrace

thread 'main' panicked at 'device not available: "Invalid argument"', libcore/result.rs:1009:5
stack backtrace:
   ...snip...
  10: cpal::cpal_impl::Device::supported_formats
             at src/alsa/mod.rs:95
  11: cpal::cpal_impl::Device::default_format
             at src/alsa/mod.rs:270
  12: cpal::cpal_impl::Device::default_input_format
             at src/alsa/mod.rs:296
  13: cpal::Device::default_input_format
             at ./src/lib.rs:388
  14: enumerate::main
             at examples/enumerate.rs:15
   ...snip...

• stdout

lots of output from

cargo run --example enumerate

Default Input Device:
  Some("default")
Default Output Device:
  Some("default")
Devices: 
1. "jack"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(48000), data_type: F32 }
  All supported input stream formats:
    1.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(48000), data_type: F32 }
  All supported output stream formats:
    1.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: F32 }
2. "pulse"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    2.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    2.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
3. "sysdefault:CARD=Microphone"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    3.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    3.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
4. "front:CARD=Microphone,DEV=0"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported input stream formats:
    4.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    4.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported output stream formats:
    4.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    4.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
5. "surround21:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
6. "surround40:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
7. "surround41:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
8. "surround50:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
9. "surround51:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
10. "surround71:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
11. "iec958:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
12. "sysdefault:CARD=PCH"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    12.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    12.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
13. "front:CARD=PCH,DEV=0"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported input stream formats:
    13.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.3. SupportedFormat { channels: 2, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.4. SupportedFormat { channels: 2, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported output stream formats:
    13.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.3. SupportedFormat { channels: 2, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.4. SupportedFormat { channels: 2, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
    13.5. SupportedFormat { channels: 4, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.6. SupportedFormat { channels: 4, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.7. SupportedFormat { channels: 4, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.8. SupportedFormat { channels: 4, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
    13.9. SupportedFormat { channels: 6, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.10. SupportedFormat { channels: 6, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.11. SupportedFormat { channels: 6, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.12. SupportedFormat { channels: 6, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
14. "surround21:CARD=PCH,DEV=0"

[richard-uk1]

The enumerate example fails as well, but with more output that maybe is helpful:

• stderror

ALSA lib pcm_usb_stream.c:508:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_usb_stream.c:508:(_snd_pcm_usb_stream_open) Unknown field hint
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map

• Backtrace

thread 'main' panicked at 'device not available: "Invalid argument"', libcore/result.rs:1009:5
stack backtrace:
   ...snip...
  10: cpal::cpal_impl::Device::supported_formats
             at src/alsa/mod.rs:95
  11: cpal::cpal_impl::Device::default_format
             at src/alsa/mod.rs:270
  12: cpal::cpal_impl::Device::default_input_format
             at src/alsa/mod.rs:296
  13: cpal::Device::default_input_format
             at ./src/lib.rs:388
  14: enumerate::main
             at examples/enumerate.rs:15
   ...snip...

• stdout

lots of output from

cargo run --example enumerate

Default Input Device:
  Some("default")
Default Output Device:
  Some("default")
Devices: 
1. "jack"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(48000), data_type: F32 }
  All supported input stream formats:
    1.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(48000), data_type: F32 }
  All supported output stream formats:
    1.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: F32 }
2. "pulse"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    2.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    2.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: I16 }
    2.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
    2.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(1), max_sample_rate: SampleRate(384000), data_type: F32 }
3. "sysdefault:CARD=Microphone"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    3.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    3.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    3.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    3.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    3.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
4. "front:CARD=Microphone,DEV=0"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported input stream formats:
    4.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    4.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported output stream formats:
    4.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    4.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
5. "surround21:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
6. "surround40:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
7. "surround41:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
8. "surround50:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
9. "surround51:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
10. "surround71:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
11. "iec958:CARD=Microphone,DEV=0"
Error: DeviceNotAvailable
12. "sysdefault:CARD=PCH"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported input stream formats:
    12.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: F32 }
  All supported output stream formats:
    12.1. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.3. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.4. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.5. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.6. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.7. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.8. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.9. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.10. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.11. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.12. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.13. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.14. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.15. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.16. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.17. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.18. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.19. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.20. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.21. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.22. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.23. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.24. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.25. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.26. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.27. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.28. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.29. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.30. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.31. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.32. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: I16 }
    12.33. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.34. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.35. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.36. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.37. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.38. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.39. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.40. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.41. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.42. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.43. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.44. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.45. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.46. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.47. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.48. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.49. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.50. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.51. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.52. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.53. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.54. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.55. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.56. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.57. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.58. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.59. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.60. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.61. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.62. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.63. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.64. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: U16 }
    12.65. SupportedFormat { channels: 1, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.66. SupportedFormat { channels: 2, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.67. SupportedFormat { channels: 3, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.68. SupportedFormat { channels: 4, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.69. SupportedFormat { channels: 5, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.70. SupportedFormat { channels: 6, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.71. SupportedFormat { channels: 7, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.72. SupportedFormat { channels: 8, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.73. SupportedFormat { channels: 9, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.74. SupportedFormat { channels: 10, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.75. SupportedFormat { channels: 11, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.76. SupportedFormat { channels: 12, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.77. SupportedFormat { channels: 13, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.78. SupportedFormat { channels: 14, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.79. SupportedFormat { channels: 15, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.80. SupportedFormat { channels: 16, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.81. SupportedFormat { channels: 17, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.82. SupportedFormat { channels: 18, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.83. SupportedFormat { channels: 19, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.84. SupportedFormat { channels: 20, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.85. SupportedFormat { channels: 21, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.86. SupportedFormat { channels: 22, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.87. SupportedFormat { channels: 23, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.88. SupportedFormat { channels: 24, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.89. SupportedFormat { channels: 25, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.90. SupportedFormat { channels: 26, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.91. SupportedFormat { channels: 27, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.92. SupportedFormat { channels: 28, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.93. SupportedFormat { channels: 29, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.94. SupportedFormat { channels: 30, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.95. SupportedFormat { channels: 31, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
    12.96. SupportedFormat { channels: 32, min_sample_rate: SampleRate(4000), max_sample_rate: SampleRate(4294967295), data_type: F32 }
13. "front:CARD=PCH,DEV=0"
  Default input stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported input stream formats:
    13.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.3. SupportedFormat { channels: 2, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.4. SupportedFormat { channels: 2, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
  Default output stream format:
    Format { channels: 2, sample_rate: SampleRate(44100), data_type: I16 }
  All supported output stream formats:
    13.1. SupportedFormat { channels: 2, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.2. SupportedFormat { channels: 2, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.3. SupportedFormat { channels: 2, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.4. SupportedFormat { channels: 2, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
    13.5. SupportedFormat { channels: 4, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.6. SupportedFormat { channels: 4, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.7. SupportedFormat { channels: 4, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.8. SupportedFormat { channels: 4, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
    13.9. SupportedFormat { channels: 6, min_sample_rate: SampleRate(44100), max_sample_rate: SampleRate(44100), data_type: I16 }
    13.10. SupportedFormat { channels: 6, min_sample_rate: SampleRate(48000), max_sample_rate: SampleRate(48000), data_type: I16 }
    13.11. SupportedFormat { channels: 6, min_sample_rate: SampleRate(96000), max_sample_rate: SampleRate(96000), data_type: I16 }
    13.12. SupportedFormat { channels: 6, min_sample_rate: SampleRate(192000), max_sample_rate: SampleRate(192000), data_type: I16 }
14. "surround21:CARD=PCH,DEV=0"

[richard-uk1]

Important info - I'm using jack pcm, This is probably where the problem is coming from, but it should still work. I'll investigate.

[richard-uk1]

I'm tempted to close this, because I think the problem came from mismatched library versions, and alsa basically gives no error information at all, making any problem hard to debug.

Urgh alsa.

[richard-uk1]

Just to say I've hit this problem again, and this time it's not a version mismatch. I'm finding it very hard to debug, because if it's a mis-configuration then alsa isn't telling me how

[mitchmindtree]

@derekdreery you might be interested in #268 - @ishitatsuyuki and I will be having a closer look at this in the very near future and I know you've looked into better error handling solutions for CPAL in the past!