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<h2><a href="https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Application_BackgroundDetect">Asterisk 10 Application_BackgroundDetect</a></h2>
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<h1><a name="Asterisk10Application_BackgroundDetect-BackgroundDetect%28%29"></a>BackgroundDetect()</h1>
<h3><a name="Asterisk10Application_BackgroundDetect-Synopsis"></a>Synopsis</h3>
<p>Background a file with talk detect.</p>
<h3><a name="Asterisk10Application_BackgroundDetect-Description"></a>Description</h3>
<p>Plays back <em>filename</em>, waiting for interruption from a given digit (the digit must start the beginning of a valid extension, or it will be ignored). During the playback of the file, audio is monitored in the receive direction, and if a period of non-silence which is greater than <em>min</em> ms yet less than <em>max</em> ms is followed by silence for at least <em>sil</em> ms, which occurs during the first <em>analysistime</em> ms, then the audio playback is aborted and processing jumps to the <em>talk</em> extension, if available.</p>
<h3><a name="Asterisk10Application_BackgroundDetect-Syntax"></a>Syntax</h3>
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<pre>BackgroundDetect(filename[,sil[,min[,max[,analysistime]]]])</pre>
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<h5><a name="Asterisk10Application_BackgroundDetect-Arguments"></a>Arguments</h5>
<ul>
<li><tt>filename</tt></li>
<li><tt>sil</tt> - If not specified, defaults to <tt>1000</tt>.</li>
<li><tt>min</tt> - If not specified, defaults to <tt>100</tt>.</li>
<li><tt>max</tt> - If not specified, defaults to <tt>infinity</tt>.</li>
<li><tt>analysistime</tt> - If not specified, defaults to <tt>infinity</tt>.</li>
</ul>
<h3><a name="Asterisk10Application_BackgroundDetect-SeeAlso"></a>See Also</h3>
<h3><a name="Asterisk10Application_BackgroundDetect-ImportVersion"></a>Import Version</h3>
<p>This documentation was imported from Asterisk version SVN-branch-10-r340810.</p>
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