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<h2>
<span class="refentrytitle">filesr</span>
</h2>
<p>filesr —
Returns the sample rate of a sound file.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp20092464"></a>
<h2>Description</h2>
<p>
Returns the sample rate of a sound file.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp20093184"></a>
<h2>Syntax</h2>
<pre class="synopsis">ir <span class="command"><strong>filesr</strong></span> ifilcod [, iallowraw]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp20103624"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ifilcod</em></span> -- sound file to be queried
</p>
<p>
<span class="emphasis"><em>iallowraw</em></span> -- (Optional) Allow raw sound files (default=1)
</p>
</div>
<div class="refsect1" title="Performance">
<a id="idp20105032"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>filesr</em></span> returns the sample rate of the sound file <span class="emphasis"><em>ifilcod</em></span>. <span class="emphasis"><em>filesr</em></span> can return the sample rate of convolve and PVOC files if the <span class="emphasis"><em>iallowraw</em></span> flag is not zero (it is non-zero by default).
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp20106656"></a>
<h2>Examples</h2>
<p>
Here is an example of the filesr opcode. It uses the file <a class="ulink" href="examples/filesr.csd" target="_top"><em class="citetitle">filesr.csd</em></a>,
and <a class="ulink" href="examples/beats.wav" target="_top"><em class="citetitle">beats.wav</em></a>.
</p>
<div class="example">
<a id="idp20141696"></a>
<p class="title">
<strong>Example 229. Example of the filesr 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 filesr.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="comment">;after an example from Jonathan Murphy</span>
<span class="oblock">instr</span> 1
<span class="comment">;load sound into an ftable</span>
Sfile <span class="opc">strcpy</span> "beats.wav"
ilen <span class="opc">filelen</span> Sfile
isr <span class="opc">filesr</span> Sfile
isamps <span class="op">=</span> ilen <span class="op">*</span> isr
<span class="comment">;adjust the length of the table to be a power of two closest</span>
<span class="comment">;to the actual size of the sound </span>
isize <span class="opc">init</span> 1
<span class="olabel">loop</span><span class="op">:</span>
isize <span class="op">=</span> isize <span class="op">*</span> 2
<span class="octrl">if</span> (isize <span class="op"><</span> isamps) <span class="octrl">igoto</span> <span class="olabel">loop</span>
itab <span class="ohdr">ftgen</span> 0, 0, isize, 1, Sfile, 0, 0, 0
<span class="opc">prints</span> "sample rate <span class="op">=</span> <span class="op">%</span>f, size <span class="op">=</span> <span class="op">%</span>f\n", isr, isize <span class="comment">;prints them</span>
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span>1 0 2
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
The audio file <span class="quote">“<span class="quote">beats.wav</span>”</span> was sampled at 44.1 KHz. So <span class="emphasis"><em>filesr</em></span>'s output should include a line like this:
</p>
<pre class="screen">
sample rate = 44100.000000, size = 131072.000000
</pre>
<p>
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp20144992"></a>
<h2>See Also</h2>
<p>
<a class="link" href="filebit.html" title="filebit"><em class="citetitle">filebit</em></a>,
<a class="link" href="filelen.html" title="filelen"><em class="citetitle">filelen</em></a>,
<a class="link" href="filenchnls.html" title="filenchnls"><em class="citetitle">filenchnls</em></a>,
<a class="link" href="filepeak.html" title="filepeak"><em class="citetitle">filepeak</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp20147528"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Matt Ingalls</td>
</tr>
<tr>
<td>July 1999</td>
</tr>
</table>
<p>
</p>
<p>New in Csound version 3.57</p>
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