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<?xml version="1.0"?>
<!--
###################################################
##Audio Source
###################################################
-->
<block>
<name>Audio Source</name>
<key>audio_source</key>
<category>Sources</category>
<throttle>1</throttle>
<import>from gnuradio import audio</import>
<make>audio.source($samp_rate, $device_name, $ok_to_block)</make>
<param>
<name>Sample Rate</name>
<key>samp_rate</key>
<value>samp_rate</value>
<type>int</type>
<option>
<name>16KHz</name>
<key>16000</key>
</option>
<option>
<name>22.05KHz</name>
<key>22050</key>
</option>
<option>
<name>24KHz</name>
<key>24000</key>
</option>
<option>
<name>32KHz</name>
<key>32000</key>
</option>
<option>
<name>44.1KHz</name>
<key>44100</key>
</option>
<option>
<name>48KHz</name>
<key>48000</key>
</option>
</param>
<param>
<name>Device Name</name>
<key>device_name</key>
<value></value>
<type>string</type>
<hide>#if $device_name() then 'none' else 'part'#</hide>
</param>
<param>
<name>OK to Block</name>
<key>ok_to_block</key>
<value>True</value>
<type>enum</type>
<hide>part</hide>
<option>
<name>Yes</name>
<key>True</key>
</option>
<option>
<name>No</name>
<key>False</key>
</option>
</param>
<param>
<name>Num Outputs</name>
<key>num_outputs</key>
<value>1</value>
<type>int</type>
</param>
<check>0 < $num_outputs</check>
<source>
<name>out</name>
<type>float</type>
<nports>$num_outputs</nports>
</source>
<doc>
Not all sampling rates will be supported by your hardware.
Leave the device name blank to choose deafult audio device. \
ALSA users with audio trouble may try setting the device name to plughw:0,0
The audio source can have multiple outputs depending upon your hardware. \
For example, set the outputs to 2 for stereo audio.
</doc>
</block>
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