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<h2>
<span class="refentrytitle">mp3len</span>
</h2>
<p>mp3len —
Returns the length of an MP3 sound file.
</p>
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<div class="refsect1" title="Description">
<a id="idp32355944"></a>
<h2>Description</h2>
<p>
Returns the length of an MP3 sound file.
</p>
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<div class="refsect1" title="Syntax">
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<h2>Syntax</h2>
<pre class="synopsis">ir <span class="command"><strong>mp3len</strong></span> ifilcod</pre>
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<div class="refsect1" title="Initialization">
<a id="idp32343776"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ifilcod</em></span> -- sound file to be queried
</p>
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<div class="refsect1" title="Performance">
<a id="idp32344624"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>mp3len</em></span> returns the length of the sound file <span class="emphasis"><em>ifilcod</em></span> in seconds.
</p>
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<div class="refsect1" title="Examples">
<a id="idp32394416"></a>
<h2>Examples</h2>
<p>
Here is an example of the mp3len opcode. It uses the file <a class="ulink" href="examples/mp3len.csd" target="_top"><em class="citetitle">mp3len.csd</em></a>.
</p>
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<a id="idp32395368"></a>
<p class="title">
<strong>Example 496. Example of the mp3len opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">;-o mp3len.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span> <span class="op">=</span> 1
<span class="oblock">instr</span> 1
ilen <span class="opc">mp3len</span> p4 <span class="comment">;calculate length of mp3 file</span>
<span class="opc">print</span> ilen
asigL, asigR <span class="opc">mp3in</span> p4
<span class="opc">outs</span> asigL, asigR
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 30 "XORNOT_jul-14-05.mp3" <span class="comment">; long signal</span>
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
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<p><br class="example-break" />
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<div class="refsect1" title="See Also">
<a id="idp32397640"></a>
<h2>See Also</h2>
<p>
<a class="link" href="mp3in.html" title="mp3in"><em class="citetitle">mp3in</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp32398656"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: John ffitch</td>
</tr>
<tr>
<td>Feb 2011</td>
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<p>
</p>
<p>New in Csound version 5.14</p>
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distrib
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Mageia
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5
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x86_64
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media
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core-release
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by-pkgid
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b707d9a4ee443103660a75ccb6e51334
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files
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2227
