options:
  parameters:
    author: ''
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: top_block
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: ''
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: prompt
    sizing_mode: fixed
    thread_safe_setters: ''
    title: ''
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 20.0]
    rotation: 0
    state: enabled

blocks:
- name: D
  id: variable
  parameters:
    comment: 'decimation

      factor'
    value: '8'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [176, 20.0]
    rotation: 0
    state: enabled
- name: g
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: ''
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '0'
    step: '.1'
    stop: '1'
    value: '0.3'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [368, 20.0]
    rotation: 0
    state: enabled
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: 48000*D
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 20.0]
    rotation: 0
    state: enabled
- name: analog_am_demod_cf_0
  id: analog_am_demod_cf
  parameters:
    affinity: ''
    alias: ''
    audio_decim: D
    audio_pass: '2000'
    audio_stop: '5500'
    chan_rate: samp_rate
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1104, 244.0]
    rotation: 0
    state: enabled
- name: analog_noise_source_x_0
  id: analog_noise_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: '.005'
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    noise_type: analog.GR_GAUSSIAN
    seed: '0'
    type: complex
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [320, 284.0]
    rotation: 0
    state: enabled
- name: analog_sig_source_x_0
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: '.4'
    comment: signal1
    freq: '1710'
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: '.6'
    phase: '0'
    samp_rate: samp_rate
    type: complex
    waveform: analog.GR_COS_WAVE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 108.0]
    rotation: 0
    state: enabled
- name: analog_sig_source_x_0_0
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: '.4'
    comment: signal2
    freq: '480'
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: '.6'
    phase: '0'
    samp_rate: samp_rate
    type: complex
    waveform: analog.GR_COS_WAVE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 396.0]
    rotation: 0
    state: enabled
- name: analog_sig_source_x_1
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: '.4'
    comment: carrier
    freq: '30000'
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: '0'
    phase: '0'
    samp_rate: samp_rate
    type: complex
    waveform: analog.GR_COS_WAVE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 252.0]
    rotation: 0
    state: enabled
- name: audio_sink_0
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: ''
    num_inputs: '1'
    ok_to_block: 'True'
    samp_rate: int(samp_rate/D)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1416, 148.0]
    rotation: 0
    state: disabled
- name: blocks_add_xx_0
  id: blocks_add_xx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    num_inputs: '3'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [760, 248.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_const_vxx_0
  id: blocks_multiply_const_vxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    const: g
    maxoutbuf: '0'
    minoutbuf: '0'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [488, 212.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_const_vxx_0_0
  id: blocks_multiply_const_vxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    const: 1-g
    maxoutbuf: '0'
    minoutbuf: '0'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [464, 388.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_xx_0
  id: blocks_multiply_xx
  parameters:
    affinity: ''
    alias: ''
    comment: AM
    maxoutbuf: '0'
    minoutbuf: '0'
    num_inputs: '2'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [272, 384.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_xx_0_0
  id: blocks_multiply_xx
  parameters:
    affinity: ''
    alias: ''
    comment: AM
    maxoutbuf: '0'
    minoutbuf: '0'
    num_inputs: '2'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [280, 208.0]
    rotation: 0
    state: enabled
- name: blocks_throttle_0
  id: blocks_throttle
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    ignoretag: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_second: samp_rate
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [928, 268.0]
    rotation: 0
    state: enabled
- name: low_pass_filter_0
  id: low_pass_filter
  parameters:
    affinity: ''
    alias: ''
    beta: '6.76'
    comment: ''
    cutoff_freq: samp_rate/8/8
    decim: '4'
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: samp_rate/8
    type: fir_filter_fff
    width: samp_rate/100
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1312, 220.0]
    rotation: 0
    state: true
- name: qtgui_freq_sink_x_0
  id: qtgui_freq_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    average: '1.0'
    axislabels: 'True'
    bw: samp_rate/D
    color1: '"blue"'
    color10: '"dark blue"'
    color2: '"red"'
    color3: '"green"'
    color4: '"black"'
    color5: '"cyan"'
    color6: '"magenta"'
    color7: '"yellow"'
    color8: '"dark red"'
    color9: '"dark green"'
    comment: ''
    ctrlpanel: 'False'
    fc: '0'
    fftsize: '1024'
    freqhalf: 'False'
    grid: 'False'
    gui_hint: ''
    label: Relative Gain
    label1: ''
    label10: ''
    label2: ''
    label3: ''
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    name: '""'
    nconnections: '1'
    norm_window: 'False'
    showports: 'True'
    tr_chan: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_tag: '""'
    type: float
    units: dB
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    wintype: window.WIN_BLACKMAN_hARRIS
    ymax: '10'
    ymin: '-140'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1512, 280.0]
    rotation: 0
    state: enabled
- name: qtgui_time_sink_x_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'False'
    gui_hint: ''
    label1: ''
    label10: ''
    label2: ''
    label3: ''
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    marker1: '-1'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '""'
    nconnections: '1'
    size: '1024'
    srate: samp_rate
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: complex
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '1'
    ymin: '-1'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [976, 148.0]
    rotation: 0
    state: enabled

connections:
- [analog_am_demod_cf_0, '0', audio_sink_0, '0']
- [analog_am_demod_cf_0, '0', low_pass_filter_0, '0']
- [analog_noise_source_x_0, '0', blocks_add_xx_0, '2']
- [analog_sig_source_x_0, '0', blocks_multiply_xx_0_0, '0']
- [analog_sig_source_x_0_0, '0', blocks_multiply_xx_0, '1']
- [analog_sig_source_x_1, '0', blocks_multiply_xx_0, '0']
- [analog_sig_source_x_1, '0', blocks_multiply_xx_0_0, '1']
- [blocks_add_xx_0, '0', blocks_throttle_0, '0']
- [blocks_add_xx_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_multiply_const_vxx_0, '0', blocks_add_xx_0, '0']
- [blocks_multiply_const_vxx_0_0, '0', blocks_add_xx_0, '1']
- [blocks_multiply_xx_0, '0', blocks_multiply_const_vxx_0_0, '0']
- [blocks_multiply_xx_0_0, '0', blocks_multiply_const_vxx_0, '0']
- [blocks_throttle_0, '0', analog_am_demod_cf_0, '0']
- [low_pass_filter_0, '0', qtgui_freq_sink_x_0, '0']

metadata:
  file_format: 1