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<h2><a href="https://wiki.asterisk.org/wiki/display/AST/Asterisk+11+Function_AGC">Asterisk 11 Function_AGC</a></h2>
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<h1><a name="Asterisk11Function_AGC-AGC%28%29"></a>AGC()</h1>
<h3><a name="Asterisk11Function_AGC-Synopsis"></a>Synopsis</h3>
<p>Apply automatic gain control to audio on a channel.</p>
<h3><a name="Asterisk11Function_AGC-Description"></a>Description</h3>
<p>The AGC function will apply automatic gain control to the audio on the channel that it is executed on. Using <tt>rx</tt> for audio received and <tt>tx</tt> for audio transmitted to the channel. When using this function you set a target audio level. It is primarily intended for use with analog lines, but could be useful for other channels as well. The target volume is set with a number between <tt>1-32768</tt>. The larger the number the louder (more gain) the channel will receive.</p>
<p>Examples:</p>
<p>exten => 1,1,Set(AGC(rx)=8000)</p>
<p>exten => 1,2,Set(AGC(tx)=off)</p>
<h3><a name="Asterisk11Function_AGC-Syntax"></a>Syntax</h3>
<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>AGC(channeldirection)</pre>
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<h5><a name="Asterisk11Function_AGC-Arguments"></a>Arguments</h5>
<ul>
<li>channeldirection - This can be either <tt>rx</tt> or <tt>tx</tt></li>
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<h3><a name="Asterisk11Function_AGC-ImportVersion"></a>Import Version</h3>
<p>This documentation was imported from Asterisk Version SVN-trunk-r370322</p>
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