<?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> <sink_key>0</sink_key> </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> </connection> <connection> <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> <connection> <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> </connection> <connection> <source_block_id>vocoder_codec2_decode_ps_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>blocks_stream_to_vector_0</source_block_id> <sink_block_id>vocoder_codec2_decode_ps_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>virtual_source_0</source_block_id> <sink_block_id>blocks_packed_to_unpacked_xx_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>blocks_packed_to_unpacked_xx_0</source_block_id> <sink_block_id>blocks_stream_to_vector_0</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> </flow_graph>