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<?xml version="1.0"?>
<block>
<name>TCH/H decoder</name>
<key>gsm_tch_h_decoder</key>
<import>import grgsm</import>
<make>grgsm.tch_h_decoder($sub_channel, $mode, $boundary_check)</make>
<param>
<name>sub-channel number</name>
<key>sub_channel</key>
<value>0</value>
<type>int</type>
<option>
<name>sub-channel 0</name>
<key>0</key>
</option>
<option>
<name>sub-channel 1</name>
<key>1</key>
</option>
</param>
<param>
<name>TCH/H coding mode</name>
<key>mode</key>
<type>enum</type>
<option>
<name>GSM-HS</name>
<key>grgsm.TCH_HS</key>
</option>
<option>
<name>GSM-AMR 7.95</name>
<key>grgsm.TCH_AHS7_95</key>
</option>
<option>
<name>GSM-AMR 7.4</name>
<key>grgsm.TCH_AHS7_4</key>
</option>
<option>
<name>GSM-AMR 6.7</name>
<key>grgsm.TCH_AHS6_7</key>
</option>
<option>
<name>GSM-AMR 5.9</name>
<key>grgsm.TCH_AHS5_9</key>
</option>
<option>
<name>GSM-AMR 5.15</name>
<key>grgsm.TCH_AHS5_15</key>
</option>
<option>
<name>GSM-AMR 4.75</name>
<key>grgsm.TCH_AHS4_75</key>
</option>
</param>
<param>
<name>Voice boundary detection</name>
<key>boundary_check</key>
<value>False</value>
<type>bool</type>
<option>
<name>False</name>
<key>False</key>
</option>
<option>
<name>True</name>
<key>True</key>
</option>
</param>
<check>$sub_channel() > -1 and $sub_channel() < 2</check>
<sink>
<name>bursts</name>
<type>message</type>
</sink>
<source>
<name>msgs</name>
<type>message</type>
<optional>1</optional>
</source>
<source>
<name>voice</name>
<type>message</type>
<optional>1</optional>
</source>
<doc>
If "Voice boundary detection" is enabled, then only bursts are decoded as voice where
- the framenumber is greater then the framenumber of a received "Connect" or "Connect Acknowlegde" message, and
- the framenumber is less then the framenumber of a "Release" message
</doc>
</block>
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