dingyu
/
Asterisk


			
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091
							<!DOCTYPE html>
<html>
    <head>
        <title>Asterisk Project : Asterisk 13 Application_BackgroundDetect</title>
        <link rel="stylesheet" href="styles/site.css" type="text/css" />
        <META http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>

    <body class="theme-default aui-theme-default">
        <div id="page">
            <div id="main" class="aui-page-panel">
                <div id="main-header">
                    <div id="breadcrumb-section">
                        <ol id="breadcrumbs">
                            <li class="first">
                                <span><a href="index.html">Asterisk Project</a></span>
                            </li>
                                                    <li>
                                <span><a href="Asterisk-13-Command-Reference_29394274.html">Asterisk 13 Command Reference</a></span>
                            </li>
                                                    <li>
                                <span><a href="Asterisk-13-Dialplan-Applications_29394285.html">Asterisk 13 Dialplan Applications</a></span>
                            </li>
                                                </ol>
                    </div>
                    <h1 id="title-heading" class="pagetitle">
                                                <span id="title-text">
                            Asterisk Project : Asterisk 13 Application_BackgroundDetect
                        </span>
                    </h1>
                </div>

                <div id="content" class="view">
                    <div class="page-metadata">
                        
        
            Created by <span class='author'> wikibot</span> on Aug 08, 2014
                        </div>
                    <div id="main-content" class="wiki-content group">
                    <h1 id="Asterisk13Application_BackgroundDetect-BackgroundDetect()">BackgroundDetect()</h1>

<h3 id="Asterisk13Application_BackgroundDetect-Synopsis">Synopsis</h3>

<p>Background a file with talk detect.</p>

<h3 id="Asterisk13Application_BackgroundDetect-Description">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 id="Asterisk13Application_BackgroundDetect-Syntax">Syntax</h3>


<div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent">
<pre>BackgroundDetect(filename,[sil,[min,[max,[analysistime]]]])</pre>
</div></div>

<h5 id="Asterisk13Application_BackgroundDetect-Arguments">Arguments</h5>

<ul>
	<li><code>filename</code></li>
	<li><code>sil</code> - If not specified, defaults to <code>1000</code>.</li>
	<li><code>min</code> - If not specified, defaults to <code>100</code>.</li>
	<li><code>max</code> - If not specified, defaults to <code>infinity</code>.</li>
	<li><code>analysistime</code> - If not specified, defaults to <code>infinity</code>.</li>
</ul>


<h3 id="Asterisk13Application_BackgroundDetect-SeeAlso">See Also</h3>


<h3 id="Asterisk13Application_BackgroundDetect-ImportVersion">Import Version</h3>

<p>This documentation was imported from Asterisk Version SVN-branch-13-r420538</p>
                    </div>

                    
                </div>             </div> 
            <div id="footer">
                <section class="footer-body">
                    <p>Document generated by Confluence on Aug 11, 2014 13:44</p>
                </section>
            </div>
        </div>     </body>
</html>