Alexa speaks but no sound

[dev-danny]

Briefly summarize your issue:

Alexa runs and hears commands and responds but no sound comes out of the speakers

Tell us about your environment:

Raspberry Pi 3 with Stretch
USB Sound Card for audio
USB webcam for microphone

What version of the AVS Device SDK are you using?

  <1.5>

Tell us what hardware you're using:

• Desktop / Laptop
• [ X] Raspberry Pi
• Other - tell us more:

Tell us about your OS (Type & version):

• Linux
• MacOS
• [X ] Raspbian Stretch
• Raspbian Jessy
• Other - tell us more:

My aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 2: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0

My arecord -l

**** List of CAPTURE Hardware Devices ****
card 0: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Camera [USB 2.0 PC Camera], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0

My /etc/asound.conf file

pcm.dsnooper {
type dsnoop
ipc_key 816357492
ipc_key_add_uid 0
ipc_perm 0666
slave {
pcm "hw:1,0"
channels 1
}
}
pcm.dmixer {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
period_time 0
period_size 1024
buffer_size 8192
rate 44100
}
}
pcm.!default {
type asym
playback.pcm {
type plug
slave.pcm "dmixer"
}
capture.pcm {
type plug
slave.pcm "dsnooper"
}
}

[baddemiya]

Please run this command and post the output here.

1.nano ~/.asoundrc.
2.rec test.wav
3.aplay test.wav

[baddemiya]

Also try this change in asound.conf file.

pcm.dmixer {
type dmix
ipc_key 1024
slave {
pcm "hw:2,0"
period_time 0
period_size 1024
buffer_size 8192
rate 44100

[mavamazon]

Hi!

Could you please provide log output from the SDK?
How can you tell that SDK is responding?

[yoelrc88]

Hi, something similar is happening to me, please see here in issue#500 the output.
Thanks :)

[a2ron]

I solved it! My response on Issue 500.

[kencecka]

Hi @dev-danny,

Looks like you have several suggestions posted above. I'm going to close this issue, but please reopen if you are still having trouble with audio output.

Ken