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<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
<timestamp>Sat Feb 21 13:28:42 2009</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>frequency_response</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>title</key>
<value>untitled</value>
</param>
<param>
<key>author</key>
<value>unknown</value>
</param>
<param>
<key>description</key>
<value>gnuradio flow graph</value>
</param>
<param>
<key>window_size</key>
<value>1280, 1024</value>
</param>
<param>
<key>generate_options</key>
<value>wx_gui</value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>realtime_scheduling</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(10, 10)</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>True</value>
</param>
<param>
<key>samp_rate</key>
<value>48000</value>
</param>
<param>
<key>device_name</key>
<value>hw:1,0</value>
</param>
<param>
<key>ok_to_block</key>
<value>True</value>
</param>
<param>
<key>num_outputs</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(452, 510)</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>32000</value>
</param>
<param>
<key>_coordinate</key>
<value>(10, 170)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>wxgui_fftsink2</key>
<param>
<key>id</key>
<value>wxgui_fftsink2_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>title</key>
<value>FFT Plot</value>
</param>
<param>
<key>samp_rate</key>
<value>96000</value>
</param>
<param>
<key>baseband_freq</key>
<value>0</value>
</param>
<param>
<key>y_per_div</key>
<value>10</value>
</param>
<param>
<key>y_divs</key>
<value>8</value>
</param>
<param>
<key>ref_level</key>
<value>50</value>
</param>
<param>
<key>fft_size</key>
<value>2048</value>
</param>
<param>
<key>fft_rate</key>
<value>25</value>
</param>
<param>
<key>avg_alpha</key>
<value>0</value>
</param>
<param>
<key>average</key>
<value>True</value>
</param>
<param>
<key>peak_hold</key>
<value>False</value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(807, 446)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_noise_source_x</key>
<param>
<key>id</key>
<value>gr_noise_source_x_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>noise_type</key>
<value>gr.GR_UNIFORM</value>
</param>
<param>
<key>amp</key>
<value>1</value>
</param>
<param>
<key>seed</key>
<value>100</value>
</param>
<param>
<key>_coordinate</key>
<value>(371, 291)</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>hw:1,0</value>
</param>
<param>
<key>ok_to_block</key>
<value>True</value>
</param>
<param>
<key>num_inputs</key>
<value>2</value>
</param>
<param>
<key>_coordinate</key>
<value>(635, 295)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>gr_noise_source_x_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>audio_source_0</source_block_id>
<sink_block_id>wxgui_fftsink2_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_noise_source_x_0</source_block_id>
<sink_block_id>audio_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
</flow_graph>