news_player.grc

options:
  parameters:
    author: Joel Lehtonen
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: no_gui
    hier_block_src_path: '.:'
    id: news_player
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: '1'
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: run
    sizing_mode: fixed
    thread_safe_setters: ''
    title: News player
    window_size: ''
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 16.0]
    rotation: 0
    state: enabled

blocks:
- name: deviation
  id: variable
  parameters:
    comment: ''
    value: '90000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 16.0]
    rotation: 0
    state: true
- name: oversample
  id: variable
  parameters:
    comment: ''
    value: '8'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [856, 16.0]
    rotation: 0
    state: true
- name: redsea_rate
  id: variable
  parameters:
    comment: ''
    value: '171000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [720, 160.0]
    rotation: 0
    state: enabled
- name: analog_quadrature_demod_cf_0
  id: analog_quadrature_demod_cf
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    gain: redsea_rate/(2*math.pi*deviation)
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [584, 392.0]
    rotation: 0
    state: enabled
- name: audio_device
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Audio device
    short_id: a
    type: str
    value: '"pulse"'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [160, 160.0]
    rotation: 0
    state: true
- name: audio_rate
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Audio rate in Hz
    short_id: r
    type: intx
    value: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 160.0]
    rotation: 0
    state: true
- name: audio_sink
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: audio_device
    num_inputs: '1'
    ok_to_block: 'False'
    samp_rate: audio_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1000, 608.0]
    rotation: 0
    state: enabled
- name: bb_gain
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: BB gain
    short_id: b
    type: intx
    value: '20'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 16.0]
    rotation: 0
    state: true
- name: blocks_float_to_short_0
  id: blocks_float_to_short
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    scale: 2**15
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [248, 752.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_const_vxx_0
  id: blocks_multiply_const_vxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    const: volume
    maxoutbuf: '0'
    minoutbuf: '0'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [840, 616.0]
    rotation: 0
    state: true
- name: device
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Device string
    short_id: d
    type: str
    value: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [208, 16.0]
    rotation: 0
    state: true
- name: fm_deemph
  id: analog_fm_deemph
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: redsea_rate
    tau: 50e-6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [248, 560.0]
    rotation: 0
    state: enabled
- name: freq_xlating_fir_filter_xxx_0
  id: freq_xlating_fir_filter_xxx
  parameters:
    affinity: ''
    alias: ''
    center_freq: 2*redsea_rate
    comment: ''
    decim: oversample
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: oversample*redsea_rate
    taps: firdes.complex_band_pass(1,oversample*redsea_rate,-deviation,deviation,
      2000)
    type: ccc
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [352, 368.0]
    rotation: 0
    state: enabled
- name: frequency
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Frequency in MHz
    short_id: f
    type: eng_float
    value: '100'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [336, 16.0]
    rotation: 0
    state: true
- name: if_gain
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: IF gain
    short_id: i
    type: intx
    value: '20'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [576, 16.0]
    rotation: 0
    state: true
- name: muter
  id: blocks_mute_xx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    mute: 'True'
    type: float
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [472, 576.0]
    rotation: 0
    state: enabled
- name: osmosdr_source_0
  id: osmosdr_source
  parameters:
    affinity: ''
    alias: ''
    ant0: ''
    ant1: ''
    ant10: ''
    ant11: ''
    ant12: ''
    ant13: ''
    ant14: ''
    ant15: ''
    ant16: ''
    ant17: ''
    ant18: ''
    ant19: ''
    ant2: ''
    ant20: ''
    ant21: ''
    ant22: ''
    ant23: ''
    ant24: ''
    ant25: ''
    ant26: ''
    ant27: ''
    ant28: ''
    ant29: ''
    ant3: ''
    ant30: ''
    ant31: ''
    ant4: ''
    ant5: ''
    ant6: ''
    ant7: ''
    ant8: ''
    ant9: ''
    args: device
    bb_gain0: bb_gain
    bb_gain1: '20'
    bb_gain10: '20'
    bb_gain11: '20'
    bb_gain12: '20'
    bb_gain13: '20'
    bb_gain14: '20'
    bb_gain15: '20'
    bb_gain16: '20'
    bb_gain17: '20'
    bb_gain18: '20'
    bb_gain19: '20'
    bb_gain2: '20'
    bb_gain20: '20'
    bb_gain21: '20'
    bb_gain22: '20'
    bb_gain23: '20'
    bb_gain24: '20'
    bb_gain25: '20'
    bb_gain26: '20'
    bb_gain27: '20'
    bb_gain28: '20'
    bb_gain29: '20'
    bb_gain3: '20'
    bb_gain30: '20'
    bb_gain31: '20'
    bb_gain4: '20'
    bb_gain5: '20'
    bb_gain6: '20'
    bb_gain7: '20'
    bb_gain8: '20'
    bb_gain9: '20'
    bw0: '0'
    bw1: '0'
    bw10: '0'
    bw11: '0'
    bw12: '0'
    bw13: '0'
    bw14: '0'
    bw15: '0'
    bw16: '0'
    bw17: '0'
    bw18: '0'
    bw19: '0'
    bw2: '0'
    bw20: '0'
    bw21: '0'
    bw22: '0'
    bw23: '0'
    bw24: '0'
    bw25: '0'
    bw26: '0'
    bw27: '0'
    bw28: '0'
    bw29: '0'
    bw3: '0'
    bw30: '0'
    bw31: '0'
    bw4: '0'
    bw5: '0'
    bw6: '0'
    bw7: '0'
    bw8: '0'
    bw9: '0'
    clock_source0: ''
    clock_source1: ''
    clock_source2: ''
    clock_source3: ''
    clock_source4: ''
    clock_source5: ''
    clock_source6: ''
    clock_source7: ''
    comment: ''
    corr0: '0'
    corr1: '0'
    corr10: '0'
    corr11: '0'
    corr12: '0'
    corr13: '0'
    corr14: '0'
    corr15: '0'
    corr16: '0'
    corr17: '0'
    corr18: '0'
    corr19: '0'
    corr2: '0'
    corr20: '0'
    corr21: '0'
    corr22: '0'
    corr23: '0'
    corr24: '0'
    corr25: '0'
    corr26: '0'
    corr27: '0'
    corr28: '0'
    corr29: '0'
    corr3: '0'
    corr30: '0'
    corr31: '0'
    corr4: '0'
    corr5: '0'
    corr6: '0'
    corr7: '0'
    corr8: '0'
    corr9: '0'
    dc_offset_mode0: '0'
    dc_offset_mode1: '0'
    dc_offset_mode10: '0'
    dc_offset_mode11: '0'
    dc_offset_mode12: '0'
    dc_offset_mode13: '0'
    dc_offset_mode14: '0'
    dc_offset_mode15: '0'
    dc_offset_mode16: '0'
    dc_offset_mode17: '0'
    dc_offset_mode18: '0'
    dc_offset_mode19: '0'
    dc_offset_mode2: '0'
    dc_offset_mode20: '0'
    dc_offset_mode21: '0'
    dc_offset_mode22: '0'
    dc_offset_mode23: '0'
    dc_offset_mode24: '0'
    dc_offset_mode25: '0'
    dc_offset_mode26: '0'
    dc_offset_mode27: '0'
    dc_offset_mode28: '0'
    dc_offset_mode29: '0'
    dc_offset_mode3: '0'
    dc_offset_mode30: '0'
    dc_offset_mode31: '0'
    dc_offset_mode4: '0'
    dc_offset_mode5: '0'
    dc_offset_mode6: '0'
    dc_offset_mode7: '0'
    dc_offset_mode8: '0'
    dc_offset_mode9: '0'
    freq0: 1e6*frequency-2*redsea_rate
    freq1: 100e6
    freq10: 100e6
    freq11: 100e6
    freq12: 100e6
    freq13: 100e6
    freq14: 100e6
    freq15: 100e6
    freq16: 100e6
    freq17: 100e6
    freq18: 100e6
    freq19: 100e6
    freq2: 100e6
    freq20: 100e6
    freq21: 100e6
    freq22: 100e6
    freq23: 100e6
    freq24: 100e6
    freq25: 100e6
    freq26: 100e6
    freq27: 100e6
    freq28: 100e6
    freq29: 100e6
    freq3: 100e6
    freq30: 100e6
    freq31: 100e6
    freq4: 100e6
    freq5: 100e6
    freq6: 100e6
    freq7: 100e6
    freq8: 100e6
    freq9: 100e6
    gain0: rf_gain
    gain1: '10'
    gain10: '10'
    gain11: '10'
    gain12: '10'
    gain13: '10'
    gain14: '10'
    gain15: '10'
    gain16: '10'
    gain17: '10'
    gain18: '10'
    gain19: '10'
    gain2: '10'
    gain20: '10'
    gain21: '10'
    gain22: '10'
    gain23: '10'
    gain24: '10'
    gain25: '10'
    gain26: '10'
    gain27: '10'
    gain28: '10'
    gain29: '10'
    gain3: '10'
    gain30: '10'
    gain31: '10'
    gain4: '10'
    gain5: '10'
    gain6: '10'
    gain7: '10'
    gain8: '10'
    gain9: '10'
    gain_mode0: 'False'
    gain_mode1: 'False'
    gain_mode10: 'False'
    gain_mode11: 'False'
    gain_mode12: 'False'
    gain_mode13: 'False'
    gain_mode14: 'False'
    gain_mode15: 'False'
    gain_mode16: 'False'
    gain_mode17: 'False'
    gain_mode18: 'False'
    gain_mode19: 'False'
    gain_mode2: 'False'
    gain_mode20: 'False'
    gain_mode21: 'False'
    gain_mode22: 'False'
    gain_mode23: 'False'
    gain_mode24: 'False'
    gain_mode25: 'False'
    gain_mode26: 'False'
    gain_mode27: 'False'
    gain_mode28: 'False'
    gain_mode29: 'False'
    gain_mode3: 'False'
    gain_mode30: 'False'
    gain_mode31: 'False'
    gain_mode4: 'False'
    gain_mode5: 'False'
    gain_mode6: 'False'
    gain_mode7: 'False'
    gain_mode8: 'False'
    gain_mode9: 'False'
    if_gain0: if_gain
    if_gain1: '20'
    if_gain10: '20'
    if_gain11: '20'
    if_gain12: '20'
    if_gain13: '20'
    if_gain14: '20'
    if_gain15: '20'
    if_gain16: '20'
    if_gain17: '20'
    if_gain18: '20'
    if_gain19: '20'
    if_gain2: '20'
    if_gain20: '20'
    if_gain21: '20'
    if_gain22: '20'
    if_gain23: '20'
    if_gain24: '20'
    if_gain25: '20'
    if_gain26: '20'
    if_gain27: '20'
    if_gain28: '20'
    if_gain29: '20'
    if_gain3: '20'
    if_gain30: '20'
    if_gain31: '20'
    if_gain4: '20'
    if_gain5: '20'
    if_gain6: '20'
    if_gain7: '20'
    if_gain8: '20'
    if_gain9: '20'
    iq_balance_mode0: '0'
    iq_balance_mode1: '0'
    iq_balance_mode10: '0'
    iq_balance_mode11: '0'
    iq_balance_mode12: '0'
    iq_balance_mode13: '0'
    iq_balance_mode14: '0'
    iq_balance_mode15: '0'
    iq_balance_mode16: '0'
    iq_balance_mode17: '0'
    iq_balance_mode18: '0'
    iq_balance_mode19: '0'
    iq_balance_mode2: '0'
    iq_balance_mode20: '0'
    iq_balance_mode21: '0'
    iq_balance_mode22: '0'
    iq_balance_mode23: '0'
    iq_balance_mode24: '0'
    iq_balance_mode25: '0'
    iq_balance_mode26: '0'
    iq_balance_mode27: '0'
    iq_balance_mode28: '0'
    iq_balance_mode29: '0'
    iq_balance_mode3: '0'
    iq_balance_mode30: '0'
    iq_balance_mode31: '0'
    iq_balance_mode4: '0'
    iq_balance_mode5: '0'
    iq_balance_mode6: '0'
    iq_balance_mode7: '0'
    iq_balance_mode8: '0'
    iq_balance_mode9: '0'
    maxoutbuf: '0'
    minoutbuf: '0'
    nchan: '1'
    num_mboards: '1'
    sample_rate: oversample*redsea_rate
    sync: pc_clock
    time_source0: ''
    time_source1: ''
    time_source2: ''
    time_source3: ''
    time_source4: ''
    time_source5: ''
    time_source6: ''
    time_source7: ''
    type: fc32
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [72, 292.0]
    rotation: 0
    state: enabled
- name: pty
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: PTY to play
    short_id: p
    type: str
    value: '"News"'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [432, 160.0]
    rotation: 0
    state: true
- name: pty_mute
  id: epy_block
  parameters:
    _source_code: "\"\"\"\nPTY unmuter block\n\"\"\"\n\nimport numpy as np\nfrom gnuradio\
      \ import gr\nimport pmt\nimport sys\n\nclass blk(gr.sync_block):  # other base\
      \ classes are basic_block, decim_block, interp_block\n    \"\"\"\n    Send unmute\
      \ message when PTY starts and mute when it ends. Also,\n    stop the top block\
      \ after given PTY if stop_after is enabled and\n    top_block is set to self\
      \ in grc.\n    \"\"\"\n\n    def __init__(self, top_block=None, target_pty=\"\
      News\", stop_after=True):  # only default arguments here\n        \"\"\"arguments\
      \ to this function show up as parameters in GRC\"\"\"\n        gr.sync_block.__init__(\n\
      \            self,\n            name='PTY unmuter',   # will show up in GRC\n\
      \            in_sig=[],\n            out_sig=[]\n        )\n        self.message_port_register_in(pmt.intern(\"\
      pty\"))\n        self.message_port_register_out(pmt.intern(\"mute\"))\n    \
      \    self.set_msg_handler(pmt.intern('pty'), self.pty_msg)\n\n        # if an\
      \ attribute with the same name as a parameter is found,\n        # a callback\
      \ is registered (properties work, too).\n        self.target_pty = target_pty\n\
      \        self.die_state = 0\n        self.top_block = top_block\n        self.stop_after\
      \ = stop_after\n\n    def pty_msg(self, new_pty):\n        print(str(new_pty))\n\
      \        mute = str(new_pty) != self.target_pty\n        self.message_port_pub(pmt.intern('mute'),\
      \ pmt.from_bool(mute))\n\n        if (not mute and self.die_state == 0) or (mute\
      \ and self.die_state == 1):\n            self.die_state += 1\n            if\
      \ self.die_state == 2:\n                if self.top_block is not None and (self.stop_after\
      \ != 0 or self.stop_after == True):\n                    self.top_block.stop()\n"
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    stop_after: stop_after
    target_pty: pty
    top_block: self
  states:
    _io_cache: ('PTY unmuter', 'blk', [('top_block', 'None'), ('target_pty', "'News'"),
      ('stop_after', 'True')], [('pty', 'message', 1)], [('mute', 'message', 1)],
      '\n    Send unmute message when PTY starts and mute when it ends. Also,\n    stop
      the top block after given PTY if stop_after is enabled and\n    top_block is
      set to self in grc.\n    ', ['stop_after', 'target_pty', 'top_block'])
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [608, 736.0]
    rotation: 0
    state: enabled
- name: redsea
  id: epy_block
  parameters:
    _source_code: "\"\"\"\nRedsea integration\n\"\"\"\n\nimport numpy as np\nfrom\
      \ gnuradio import gr\nimport pmt\nimport subprocess\nimport select\nimport json\n\
      \nclass debounce():\n    \"\"\"Debounce for a value. Value has to be present\
      \ in given number of\n       successive packets before it's considered stable.\"\
      \"\"\n\n    def __init__(self, streak=3):\n        self.streak = streak\n  \
      \      self.current = None\n        self.pending = None\n\n    def got(self,\
      \ value):\n        # No data in input, ignore\n        if value is None:\n \
      \           return None\n\n        # If got current value, reset pending value\n\
      \        if value == self.current:\n            self.pending = None\n      \
      \      return None\n\n        # If value is not pending, make it one\n     \
      \   if value != self.pending:\n            self.pending = value\n          \
      \  self.tries = self.streak\n\n        # Check if target reached\n        self.tries\
      \ -= 1\n        if self.tries == 0:\n            self.current = self.pending\n\
      \            self.pending = None\n            return self.current\n\n      \
      \  # Nothing changed\n        return None\n\nclass blk(gr.sync_block):  # other\
      \ base classes are basic_block, decim_block, interp_block\n    \"\"\"Redsea\
      \ RDS decoder integration\"\"\"\n\n    def __init__(self, command=\"redsea\"\
      ):  # only default arguments here\n        \"\"\"arguments to this function\
      \ show up as parameters in GRC\"\"\"\n        gr.sync_block.__init__(\n    \
      \        self,\n            name='RDS parser',   # will show up in GRC\n   \
      \         in_sig=[np.int16],\n            out_sig=[]\n        )\n        self.message_port_register_out(pmt.intern(\"\
      pty\"))\n        \n        # Fork process later because otherwise gnuradio does\
      \ it too early\n        self.redsea = None\n        self.command = command\n\
      \        self.pty_debounce = debounce()\n\n    def work(self, input_items, output_items):\n\
      \        \"\"\"Throw data to Red Sea\"\"\"\n        if self.redsea is None:\n\
      \            self.redsea = subprocess.Popen([self.command], bufsize=0, stdin=subprocess.PIPE,\
      \ stdout=subprocess.PIPE)\n\n        # Receive JSON if any\n        while True:\n\
      \            # Selecting both reading and writing but ignoring output\n    \
      \        # because we already know it's ready for writing when we\n        \
      \    # can't read no more. In short, we prioritize reading RDS\n           \
      \ # data if it's available.\n            reading, _, _ = select.select([self.redsea.stdout]\
      \ , [self.redsea.stdin], [])\n            if (reading == []):\n            \
      \    break\n\n            rds = json.loads(self.redsea.stdout.readline())\n\
      \            if \"prog_type\" in rds:\n                new_pty = self.pty_debounce.got(rds[\"\
      prog_type\"])\n                if new_pty is not None:\n                   \
      \ # If PTY really changes, report it\n                    self.message_port_pub(pmt.intern('pty'),\
      \ pmt.intern(new_pty))\n\n        # Send data to Redsea\n        self.redsea.stdin.write(input_items[0].tobytes())\n\
      \n        # Report consumed items\n        return len(input_items[0])\n"
    affinity: ''
    alias: ''
    command: redsea_path
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    _io_cache: ('RDS parser', 'blk', [('command', "'redsea'")], [('0', 'short', 1)],
      [('pty', 'message', 1)], 'Redsea RDS decoder integration', ['command'])
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [408, 752.0]
    rotation: 0
    state: enabled
- name: redsea_path
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Path to Redsea
    short_id: R
    type: str
    value: '"./redsea"'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [824, 160.0]
    rotation: 0
    state: true
- name: resample_to_audio
  id: mmse_resampler_xx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    phase_shift: '0'
    resamp_ratio: redsea_rate/audio_rate
    type: float
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [632, 592.0]
    rotation: 0
    state: enabled
- name: rf_gain
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: RF gain
    short_id: g
    type: intx
    value: '30'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [480, 16.0]
    rotation: 0
    state: true
- name: stop_after
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Exit after given PTY ends
    short_id: s
    type: intx
    value: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [552, 160.0]
    rotation: 0
    state: true
- name: virtual_sink_0
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: mpx
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [776, 392.0]
    rotation: 0
    state: true
- name: virtual_sink_1
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: mute
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [792, 752.0]
    rotation: 0
    state: enabled
- name: virtual_source_0
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: mpx
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [72, 568.0]
    rotation: 0
    state: true
- name: virtual_source_1
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: mute
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [248, 648.0]
    rotation: 0
    state: enabled
- name: volume
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: Audio volume (0..1)
    short_id: V
    type: eng_float
    value: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [280, 160.0]
    rotation: 0
    state: true

connections:
- [analog_quadrature_demod_cf_0, '0', virtual_sink_0, '0']
- [blocks_float_to_short_0, '0', redsea, '0']
- [blocks_multiply_const_vxx_0, '0', audio_sink, '0']
- [fm_deemph, '0', muter, '0']
- [freq_xlating_fir_filter_xxx_0, '0', analog_quadrature_demod_cf_0, '0']
- [muter, '0', resample_to_audio, '0']
- [osmosdr_source_0, '0', freq_xlating_fir_filter_xxx_0, '0']
- [pty_mute, mute, virtual_sink_1, '0']
- [redsea, pty, pty_mute, pty]
- [resample_to_audio, '0', blocks_multiply_const_vxx_0, '0']
- [virtual_source_0, '0', blocks_float_to_short_0, '0']
- [virtual_source_0, '0', fm_deemph, '0']
- [virtual_source_1, '0', muter, set_mute]

metadata:
  file_format: 1