gr-vocoder: update codec2 and freedv blocks.

Update to add support for newer modes in codec2 0.8.1. Fixup grc blocks yml templates, update examples.
author: A. Maitland Bottoms <bottoms@debian.org> 2019-03-11 22:54:21 -0400
committer: Andrej Rode <mail@andrejro.de> 2019-03-24 20:14:42 +0100
commit: e02eed791069c82bd262f4b2cbe324db76326e54 (patch)
tree: 8d7393cb9ef7caa8a2088d66ca19f1a285307b5f /gr-vocoder/examples
parent: b9e5abc5972706f078a51b6d0bb9dbb6535c5b9c (diff)
3 files changed, 788 insertions, 1801 deletions
diff --git a/gr-vocoder/examples/CMakeLists.txt b/gr-vocoder/examples/CMakeLists.txt
index 20e250fe29..47ba927444 100644
--- a/gr-vocoder/examples/CMakeLists.txt
+++ b/gr-vocoder/examples/CMakeLists.txt
@@ -1,4 +1,4 @@
-# Copyright 2011,2016 Free Software Foundation, Inc.
+# Copyright 2011,2016,2019 Free Software Foundation, Inc.
 #
 # This file is part of GNU Radio
 #
@@ -36,7 +36,12 @@ if(LIBCODEC2_FOUND)
   GR_PYTHON_INSTALL(
     PROGRAMS
     codec2_audio_loopback.py
+    DESTINATION ${GR_PKG_VOCODER_EXAMPLES_DIR}
+    )
+  install(
+    FILES
     grfreedv.grc
+    loopback-codec2.grc
     DESTINATION ${GR_PKG_VOCODER_EXAMPLES_DIR}
     )
 endif(LIBCODEC2_FOUND)
diff --git a/gr-vocoder/examples/grfreedv.grc b/gr-vocoder/examples/grfreedv.grc
index 9f6b95d5bd..dc8594eee9 100644
--- a/gr-vocoder/examples/grfreedv.grc
+++ b/gr-vocoder/examples/grfreedv.grc
@@ -1,616 +1,193 @@
-<?xml version='1.0' encoding='utf-8'?>
-<?grc format='1' created='3.7.9'?>
-<flow_graph>
-  <timestamp>Wed Jun 29 19:22:27 2016</timestamp>
-  <block>
-    <key>options</key>
-    <param>
-      <key>author</key>
-      <value>A. MAitland Bottoms</value>
-    </param>
-    <param>
-      <key>window_size</key>
-      <value></value>
-    </param>
-    <param>
-      <key>category</key>
-      <value>Custom</value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>description</key>
-      <value>A FreeDV Modulator</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(8, 8)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
-    </param>
-    <param>
-      <key>hier_block_src_path</key>
-      <value>.:</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>grfreedv</value>
-    </param>
-    <param>
-      <key>max_nouts</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>qt_qss_theme</key>
-      <value></value>
-    </param>
-    <param>
-      <key>realtime_scheduling</key>
-      <value></value>
-    </param>
-    <param>
-      <key>run_command</key>
-      <value>{python} -u {filename}</value>
-    </param>
-    <param>
-      <key>run_options</key>
-      <value>prompt</value>
-    </param>
-    <param>
-      <key>run</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>thread_safe_setters</key>
-      <value></value>
-    </param>
-    <param>
-      <key>title</key>
-      <value>GNU Radio FreeDV</value>
-    </param>
-  </block>
-  <block>
-    <key>variable</key>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(8, 160)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>8000</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>-120</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(232, 16)</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>squelch</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>squelch slider</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>256</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>-127</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>stop</key>
-      <value>128</value>
-    </param>
-    <param>
-      <key>rangeType</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-  </block>
-  <block>
-    <key>audio_sink</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>device_name</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(920, 228)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>audio_sink_0</value>
-    </param>
-    <param>
-      <key>num_inputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>ok_to_block</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
-    </param>
-  </block>
-  <block>
-    <key>audio_source</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>device_name</key>
-      <value>hw:2,0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(16, 325)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>audio_source_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>num_outputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>ok_to_block</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>48000</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_float_to_short</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(256, 228)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>blocks_float_to_short_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>scale</key>
-      <value>32768</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_short_to_float</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(736, 228)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>blocks_short_to_float_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>scale</key>
-      <value>32768</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_wavfile_source</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>file</key>
-      <value>/usr/share/codec2/wav/all.wav</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(24, 221)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>blocks_wavfile_source_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>nchan</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>repeat</key>
-      <value>True</value>
-    </param>
-  </block>
-  <block>
-    <key>rational_resampler_xxx</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>decim</key>
-      <value>6</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>fbw</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(216, 303)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>rational_resampler_xxx_0</value>
-    </param>
-    <param>
-      <key>interp</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>taps</key>
-      <value></value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>fff</value>
-    </param>
-  </block>
-  <block>
-    <key>vocoder_freedv_rx_ss</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(576, 325)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>vocoder_freedv_rx_ss_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>mode</key>
-      <value>freedv_api.MODE_1600</value>
-    </param>
-    <param>
-      <key>squelch_thresh</key>
-      <value>squelch</value>
-    </param>
-  </block>
-  <block>
-    <key>vocoder_freedv_tx_ss</key>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>comment</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(424, 221)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>id</key>
-      <value>vocoder_freedv_tx_ss_0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>mode</key>
-      <value>freedv_api.MODE_1600</value>
-    </param>
-    <param>
-      <key>txt_msg</key>
-      <value>'GNU Radio'</value>
-    </param>
-  </block>
-  <connection>
-    <source_block_id>audio_source_0</source_block_id>
-    <sink_block_id>rational_resampler_xxx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_float_to_short_0</source_block_id>
-    <sink_block_id>vocoder_freedv_tx_ss_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_short_to_float_0</source_block_id>
-    <sink_block_id>audio_sink_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_wavfile_source_0</source_block_id>
-    <sink_block_id>blocks_float_to_short_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rational_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_float_to_short_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>vocoder_freedv_rx_ss_0</source_block_id>
-    <sink_block_id>blocks_short_to_float_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>vocoder_freedv_tx_ss_0</source_block_id>
-    <sink_block_id>vocoder_freedv_rx_ss_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-</flow_graph>
+options:
+  parameters:
+    author: A. Maitland Bottoms
+    category: Custom
+    cmake_opt: ''
+    comment: ''
+    copyright: '2016,2019 Free Software Foundation, Inc.'
+    description: A FreeDV Modulator
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: grfreedv
+    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: GNU Radio FreeDV
+    window_size: ''
+  states:
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '8000'
+  states:
+    coordinate: [8, 160]
+    rotation: 0
+    state: enabled
+- name: squelch
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: squelch slider
+    min_len: '256'
+    orient: Qt.Horizontal
+    rangeType: float
+    start: '-127'
+    step: '1'
+    stop: '128'
+    value: '-120'
+    widget: counter_slider
+  states:
+    coordinate: [232, 16]
+    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: samp_rate
+  states:
+    coordinate: [792, 316.0]
+    rotation: 0
+    state: enabled
+- name: audio_source_0
+  id: audio_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    device_name: hw:2,0
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_outputs: '1'
+    ok_to_block: 'True'
+    samp_rate: '48000'
+  states:
+    coordinate: [16, 325]
+    rotation: 0
+    state: disabled
+- name: blocks_float_to_short_0
+  id: blocks_float_to_short
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: '32768'
+    vlen: '1'
+  states:
+    coordinate: [256, 228]
+    rotation: 0
+    state: enabled
+- name: blocks_short_to_float_0
+  id: blocks_short_to_float
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: '32768'
+    vlen: '1'
+  states:
+    coordinate: [736, 228]
+    rotation: 0
+    state: enabled
+- name: blocks_wavfile_source_0
+  id: blocks_wavfile_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    file: /usr/share/codec2/wav/all.wav
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    repeat: 'True'
+  states:
+    coordinate: [24, 221]
+    rotation: 0
+    state: enabled
+- name: rational_resampler_xxx_0
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '6'
+    fbw: '0'
+    interp: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: ''
+    type: fff
+  states:
+    coordinate: [216, 303]
+    rotation: 0
+    state: disabled
+- name: vocoder_freedv_rx_ss_0
+  id: vocoder_freedv_rx_ss
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    interleave_frames: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: freedv_api.MODE_1600
+    squelch_enable: 'True'
+    squelch_thresh: squelch
+  states:
+    coordinate: [568, 92.0]
+    rotation: 0
+    state: enabled
+- name: vocoder_freedv_tx_ss_0
+  id: vocoder_freedv_tx_ss
+  parameters:
+    affinity: ''
+    alias: ''
+    clip_val: 'False'
+    comment: ''
+    interleave_frames: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: freedv_api.MODE_1600
+    tx_bpf_val: 'True'
+    txt_msg: '''GNU Radio'''
+  states:
+    coordinate: [360, 84.0]
+    rotation: 0
+    state: enabled
+
+connections:
+- [audio_source_0, '0', rational_resampler_xxx_0, '0']
+- [blocks_float_to_short_0, '0', vocoder_freedv_tx_ss_0, '0']
+- [blocks_short_to_float_0, '0', audio_sink_0, '0']
+- [blocks_wavfile_source_0, '0', blocks_float_to_short_0, '0']
+- [rational_resampler_xxx_0, '0', blocks_float_to_short_0, '0']
+- [vocoder_freedv_rx_ss_0, '0', blocks_short_to_float_0, '0']
+- [vocoder_freedv_tx_ss_0, '0', vocoder_freedv_rx_ss_0, '0']
+
+metadata:
+  file_format: 1
diff --git a/gr-vocoder/examples/loopback-codec2.grc b/gr-vocoder/examples/loopback-codec2.grc
index 4d22c8fc74..742fb4cefe 100644
--- a/gr-vocoder/examples/loopback-codec2.grc
+++ b/gr-vocoder/examples/loopback-codec2.grc
@@ -1,1184 +1,589 @@
-<?xml version='1.0' encoding='ASCII'?>
-<flow_graph>
-  <timestamp>Fri Mar  7 18:08:43 2014</timestamp>
-  <block>
-    <key>options</key>
-    <param>
-      <key>id</key>
-      <value>loopback_codec2</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>title</key>
-      <value>Codec2 Looback Test</value>
-    </param>
-    <param>
-      <key>author</key>
-      <value>Martin Braun</value>
-    </param>
-    <param>
-      <key>description</key>
-      <value>An example how to use the Codec2 Vocoder</value>
-    </param>
-    <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
-    </param>
-    <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
-    </param>
-    <param>
-      <key>category</key>
-      <value>Custom</value>
-    </param>
-    <param>
-      <key>run_options</key>
-      <value>prompt</value>
-    </param>
-    <param>
-      <key>run</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>max_nouts</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>realtime_scheduling</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(0, -1)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>scale</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>2**13</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(301, -1)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>48000</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(186, 0)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_float_to_short</key>
-    <param>
-      <key>id</key>
-      <value>blocks_float_to_short_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>scale</key>
-      <value>scale</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(417, 119)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_0_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>Audio Pre-Encoding</value>
-    </param>
-    <param>
-      <key>size</key>
-      <value>1024</value>
-    </param>
-    <param>
-      <key>srate</key>
-      <value>8000</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>nconnections</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_tag</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>entags</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(434, 202)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>rational_resampler_xxx</key>
-    <param>
-      <key>id</key>
-      <value>rational_resampler_xxx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>fff</value>
-    </param>
-    <param>
-      <key>interp</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>decim</key>
-      <value>6</value>
-    </param>
-    <param>
-      <key>taps</key>
-      <value></value>
-    </param>
-    <param>
-      <key>fbw</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(204, 94)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
-    <param>
-      <key>id</key>
-      <value>virtual_source_1_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Decoded Speech</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(3, 449)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_qtgui_check_box</key>
-    <param>
-      <key>id</key>
-      <value>play_encoded</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Encode Audio</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>int</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>true</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>false</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(834, 0)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blks2_selector</key>
-    <param>
-      <key>id</key>
-      <value>blks2_selector_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>num_inputs</key>
-      <value>2</value>
-    </param>
-    <param>
-      <key>num_outputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>input_index</key>
-      <value>play_encoded</value>
-    </param>
-    <param>
-      <key>output_index</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(280, 411)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>rational_resampler_xxx</key>
-    <param>
-      <key>id</key>
-      <value>rational_resampler_xxx_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>fff</value>
-    </param>
-    <param>
-      <key>interp</key>
-      <value>6</value>
-    </param>
-    <param>
-      <key>decim</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>taps</key>
-      <value></value>
-    </param>
-    <param>
-      <key>fbw</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(478, 400)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>audio_sink</key>
-    <param>
-      <key>id</key>
-      <value>audio_sink_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>48000</value>
-    </param>
-    <param>
-      <key>device_name</key>
-      <value></value>
-    </param>
-    <param>
-      <key>ok_to_block</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_inputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(706, 424)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>vocoder_codec2_encode_sp</key>
-    <param>
-      <key>id</key>
-      <value>vocoder_codec2_encode_sp_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(590, 123)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_vector_to_stream</key>
-    <param>
-      <key>id</key>
-      <value>blocks_vector_to_stream_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>num_items</key>
-      <value>50</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(822, 119)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
-    <param>
-      <key>id</key>
-      <value>virtual_source_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Encoded Speech</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(0, 298)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_stream_to_vector</key>
-    <param>
-      <key>id</key>
-      <value>blocks_stream_to_vector_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>num_items</key>
-      <value>50</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(444, 298)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>vocoder_codec2_decode_ps</key>
-    <param>
-      <key>id</key>
-      <value>vocoder_codec2_decode_ps_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(641, 302)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_short_to_float</key>
-    <param>
-      <key>id</key>
-      <value>blocks_short_to_float_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>vlen</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>scale</key>
-      <value>scale</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(735, 361)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
-    <param>
-      <key>id</key>
-      <value>virtual_sink_2</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Decoded Speech</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(960, 393)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>float</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>Audio Post-Encoding</value>
-    </param>
-    <param>
-      <key>size</key>
-      <value>1024</value>
-    </param>
-    <param>
-      <key>srate</key>
-      <value>8000</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>nconnections</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>update_time</key>
-      <value>0.10</value>
-    </param>
-    <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>tr_delay</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_chan</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>tr_tag</key>
-      <value>""</value>
-    </param>
-    <param>
-      <key>entags</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>gui_hint</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(960, 283)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>audio_source</key>
-    <param>
-      <key>id</key>
-      <value>audio_source_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>48000</value>
-    </param>
-    <param>
-      <key>device_name</key>
-      <value></value>
-    </param>
-    <param>
-      <key>ok_to_block</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>num_outputs</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(0, 117)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_wavfile_source</key>
-    <param>
-      <key>id</key>
-      <value>blocks_wavfile_source_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>file</key>
-      <value>/home/mbr0wn/12345.wav</value>
-    </param>
-    <param>
-      <key>repeat</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>nchan</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(-1, 225)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_packed_to_unpacked_xx</key>
-    <param>
-      <key>id</key>
-      <value>blocks_packed_to_unpacked_xx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>bits_per_chunk</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>endianness</key>
-      <value>gr.GR_LSB_FIRST</value>
-    </param>
-    <param>
-      <key>num_ports</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(229, 290)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
-    <param>
-      <key>id</key>
-      <value>virtual_sink_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Encoded Speech</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(908, 207)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>blocks_unpacked_to_packed_xx</key>
-    <param>
-      <key>id</key>
-      <value>blocks_unpacked_to_packed_xx_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>bits_per_chunk</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>endianness</key>
-      <value>gr.GR_LSB_FIRST</value>
-    </param>
-    <param>
-      <key>num_ports</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>affinity</key>
-      <value></value>
-    </param>
-    <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(694, 199)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_sink</key>
-    <param>
-      <key>id</key>
-      <value>virtual_sink_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Raw Audio</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(508, 25)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>virtual_source</key>
-    <param>
-      <key>id</key>
-      <value>virtual_source_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>stream_id</key>
-      <value>Raw Audio</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(-1, 389)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <connection>
-    <source_block_id>audio_source_0</source_block_id>
-    <sink_block_id>rational_resampler_xxx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rational_resampler_xxx_0</source_block_id>
-    <sink_block_id>blocks_float_to_short_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_float_to_short_0</source_block_id>
-    <sink_block_id>vocoder_codec2_encode_sp_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_wavfile_source_0</source_block_id>
-    <sink_block_id>rational_resampler_xxx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rational_resampler_xxx_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_0_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rational_resampler_xxx_0</source_block_id>
-    <sink_block_id>virtual_sink_1</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>virtual_source_1</source_block_id>
-    <sink_block_id>blks2_selector_0</sink_block_id>
-    <source_key>0</source_key>
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-  </connection>
-  <connection>
-    <source_block_id>virtual_source_1_0</source_block_id>
-    <sink_block_id>blks2_selector_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>1</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>rational_resampler_xxx_1</source_block_id>
-    <sink_block_id>audio_sink_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blks2_selector_0</source_block_id>
-    <sink_block_id>rational_resampler_xxx_1</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>vocoder_codec2_encode_sp_0</source_block_id>
-    <sink_block_id>blocks_vector_to_stream_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_vector_to_stream_0</source_block_id>
-    <sink_block_id>blocks_unpacked_to_packed_xx_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
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-    <source_block_id>blocks_unpacked_to_packed_xx_0</source_block_id>
-    <sink_block_id>virtual_sink_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>blocks_short_to_float_0</source_block_id>
-    <sink_block_id>virtual_sink_2</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
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-    <source_block_id>blocks_short_to_float_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
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-  <connection>
-    <source_block_id>vocoder_codec2_decode_ps_0</source_block_id>
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-    <sink_key>0</sink_key>
-  </connection>
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-    <sink_key>0</sink_key>
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-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-</flow_graph>
+options:
+  parameters:
+    author: Martin Braun
+    category: Custom
+    cmake_opt: ''
+    comment: ''
+    copyright: '2014,2019 Free Software Foundation, Inc.'
+    description: An example how to use the Codec2 Vocoder
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: loopback_codec2
+    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: Codec2 Looback Test
+    window_size: 1280, 1024
+  states:
+    coordinate: [0, -1]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: play_encoded
+  id: variable_qtgui_check_box
+  parameters:
+    comment: ''
+    'false': '0'
+    gui_hint: ''
+    label: Encode Audio
+    'true': '1'
+    type: int
+    value: 'True'
+  states:
+    coordinate: [688, 12.0]
+    rotation: 0
+    state: enabled
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '48000'
+  states:
+    coordinate: [186, 0]
+    rotation: 0
+    state: enabled
+- name: scale
+  id: variable
+  parameters:
+    comment: ''
+    value: 2**13
+  states:
+    coordinate: [301, -1]
+    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: '48000'
+  states:
+    coordinate: [784, 420.0]
+    rotation: 0
+    state: enabled
+- name: audio_source_0
+  id: audio_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    device_name: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_outputs: '1'
+    ok_to_block: 'True'
+    samp_rate: '48000'
+  states:
+    coordinate: [0, 116.0]
+    rotation: 0
+    state: enabled
+- name: blocks_add_xx_0
+  id: blocks_add_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: ''
+    minoutbuf: ''
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    coordinate: [480, 408.0]
+    rotation: 0
+    state: true
+- name: blocks_float_to_short_0
+  id: blocks_float_to_short
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: scale
+    vlen: '1'
+  states:
+    coordinate: [416, 116.0]
+    rotation: 0
+    state: enabled
+- name: blocks_multiply_const_vxx_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: 0.0 if play_encoded  else 1.0
+    maxoutbuf: ''
+    minoutbuf: ''
+    type: float
+    vlen: '1'
+  states:
+    coordinate: [224, 388.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_vxx_1
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: 1.0 if play_encoded  else 0.0
+    maxoutbuf: ''
+    minoutbuf: ''
+    type: float
+    vlen: '1'
+  states:
+    coordinate: [224, 452.0]
+    rotation: 0
+    state: true
+- name: blocks_packed_to_unpacked_xx_0
+  id: blocks_packed_to_unpacked_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    bits_per_chunk: '1'
+    comment: ''
+    endianness: gr.GR_LSB_FIRST
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_ports: '1'
+    type: byte
+  states:
+    coordinate: [224, 284.0]
+    rotation: 0
+    state: enabled
+- name: blocks_short_to_float_0
+  id: blocks_short_to_float
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: scale
+    vlen: '1'
+  states:
+    coordinate: [735, 361]
+    rotation: 0
+    state: enabled
+- name: blocks_stream_to_vector_0
+  id: blocks_stream_to_vector
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_items: '48'
+    type: byte
+    vlen: '1'
+  states:
+    coordinate: [432, 296.0]
+    rotation: 0
+    state: enabled
+- name: blocks_unpacked_to_packed_xx_0
+  id: blocks_unpacked_to_packed_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    bits_per_chunk: '1'
+    comment: ''
+    endianness: gr.GR_LSB_FIRST
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_ports: '1'
+    type: byte
+  states:
+    coordinate: [694, 199]
+    rotation: 0
+    state: enabled
+- name: blocks_vector_to_stream_0
+  id: blocks_vector_to_stream
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_items: '48'
+    type: byte
+    vlen: '1'
+  states:
+    coordinate: [824, 120.0]
+    rotation: 0
+    state: enabled
+- name: blocks_wavfile_source_0
+  id: blocks_wavfile_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    file: /home/mbr0wn/12345.wav
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    repeat: 'True'
+  states:
+    coordinate: [-1, 225]
+    rotation: 0
+    state: disabled
+- 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: '"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: Audio Post-Encoding
+    nconnections: '1'
+    size: '1024'
+    srate: '8000'
+    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: float
+    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:
+    coordinate: [960, 283]
+    rotation: 0
+    state: enabled
+- name: qtgui_time_sink_x_0_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: '"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: Audio Pre-Encoding
+    nconnections: '1'
+    size: '1024'
+    srate: '8000'
+    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: float
+    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:
+    coordinate: [434, 202]
+    rotation: 0
+    state: enabled
+- name: rational_resampler_xxx_0
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '6'
+    fbw: '0.4'
+    interp: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: ''
+    type: fff
+  states:
+    coordinate: [208, 92.0]
+    rotation: 0
+    state: enabled
+- name: rational_resampler_xxx_1
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '1'
+    fbw: '0.4'
+    interp: '6'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: ''
+    type: fff
+  states:
+    coordinate: [568, 396.0]
+    rotation: 0
+    state: enabled
+- name: virtual_sink_0
+  id: virtual_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    stream_id: Encoded Speech
+  states:
+    coordinate: [908, 207]
+    rotation: 0
+    state: enabled
+- name: virtual_sink_1
+  id: virtual_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    stream_id: Raw Audio
+  states:
+    coordinate: [508, 25]
+    rotation: 0
+    state: enabled
+- name: virtual_sink_2
+  id: virtual_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    stream_id: Decoded Speech
+  states:
+    coordinate: [960, 393]
+    rotation: 0
+    state: enabled
+- name: virtual_source_0
+  id: virtual_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: ''
+    minoutbuf: ''
+    stream_id: Encoded Speech
+  states:
+    coordinate: [0, 292.0]
+    rotation: 0
+    state: enabled
+- name: virtual_source_1
+  id: virtual_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: ''
+    minoutbuf: ''
+    stream_id: Raw Audio
+  states:
+    coordinate: [-1, 389]
+    rotation: 0
+    state: enabled
+- name: virtual_source_1_0
+  id: virtual_source
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: ''
+    minoutbuf: ''
+    stream_id: Decoded Speech
+  states:
+    coordinate: [3, 449]
+    rotation: 0
+    state: enabled
+- name: vocoder_codec2_decode_ps_0
+  id: vocoder_codec2_decode_ps
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: codec2.MODE_2400
+  states:
+    coordinate: [608, 296.0]
+    rotation: 0
+    state: enabled
+- name: vocoder_codec2_encode_sp_0
+  id: vocoder_codec2_encode_sp
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: codec2.MODE_2400
+  states:
+    coordinate: [592, 116.0]
+    rotation: 0
+    state: enabled
+
+connections:
+- [audio_source_0, '0', rational_resampler_xxx_0, '0']
+- [blocks_add_xx_0, '0', rational_resampler_xxx_1, '0']
+- [blocks_float_to_short_0, '0', vocoder_codec2_encode_sp_0, '0']
+- [blocks_multiply_const_vxx_0, '0', blocks_add_xx_0, '0']
+- [blocks_multiply_const_vxx_1, '0', blocks_add_xx_0, '1']
+- [blocks_packed_to_unpacked_xx_0, '0', blocks_stream_to_vector_0, '0']
+- [blocks_short_to_float_0, '0', qtgui_time_sink_x_0, '0']
+- [blocks_short_to_float_0, '0', virtual_sink_2, '0']
+- [blocks_stream_to_vector_0, '0', vocoder_codec2_decode_ps_0, '0']
+- [blocks_unpacked_to_packed_xx_0, '0', virtual_sink_0, '0']
+- [blocks_vector_to_stream_0, '0', blocks_unpacked_to_packed_xx_0, '0']
+- [blocks_wavfile_source_0, '0', rational_resampler_xxx_0, '0']
+- [rational_resampler_xxx_0, '0', blocks_float_to_short_0, '0']
+- [rational_resampler_xxx_0, '0', qtgui_time_sink_x_0_0, '0']
+- [rational_resampler_xxx_0, '0', virtual_sink_1, '0']
+- [rational_resampler_xxx_1, '0', audio_sink_0, '0']
+- [virtual_source_0, '0', blocks_packed_to_unpacked_xx_0, '0']
+- [virtual_source_1, '0', blocks_multiply_const_vxx_0, '0']
+- [virtual_source_1_0, '0', blocks_multiply_const_vxx_1, '0']
+- [vocoder_codec2_decode_ps_0, '0', blocks_short_to_float_0, '0']
+- [vocoder_codec2_encode_sp_0, '0', blocks_vector_to_stream_0, '0']
+
+metadata:
+  file_format: 1
author	A. Maitland Bottoms <bottoms@debian.org>	2019-03-11 22:54:21 -0400
committer	Andrej Rode <mail@andrejro.de>	2019-03-24 20:14:42 +0100
commit	e02eed791069c82bd262f4b2cbe324db76326e54 (patch)
tree	8d7393cb9ef7caa8a2088d66ca19f1a285307b5f /gr-vocoder/examples
parent	b9e5abc5972706f078a51b6d0bb9dbb6535c5b9c (diff)