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<h2>
<span class="refentrytitle">fin</span>
</h2>
<p>fin —
Read signals from a file at a-rate.
</p>
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<div class="refsect1">
<a id="idm281472937380536"></a>
<h2>Description</h2>
<p>
Read signals from a file at a-rate.
</p>
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<div class="refsect1">
<a id="idm281472937379288"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>fin</strong></span> ifilename, iskipframes, iformat, ain1 [, ain2] [, ain3] [,...]</pre>
<pre class="synopsis"><span class="command"><strong>fin</strong></span> ifilename, iskipframes, iformat, arr[]</pre>
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<div class="refsect1">
<a id="idm281472937336232"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ifilename</em></span> -- input file name (can be a string or a handle number generated by <a class="link" href="fiopen.html" title="fiopen"><em class="citetitle">fiopen</em></a>).
</p>
<p>
<span class="emphasis"><em>iskipframes</em></span> -- number of frames to skip at the start (every frame contains a sample of each channel)
</p>
<p>
<span class="emphasis"><em>iformat</em></span> -- a number specifying the input file format for headerless files. If a header is found, this argument is ignored.
</p>
<div class="itemizedlist">
<ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<p>0 - 32 bit floating points without header</p>
</li>
<li class="listitem">
<p>1 - 16 bit integers without header</p>
</li>
</ul>
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<p>
</p>
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<div class="refsect1">
<a id="idm281472937329704"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>fin</em></span> (file input) is the complement of <a class="link" href="fout.html" title="fout"><em class="citetitle">fout</em></a>: it reads a multichannel file to generate audio rate signals. The user must be sure that the number of channels of the input file is the same as the number of <span class="emphasis"><em>ainX</em></span> arguments.
</p>
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<th align="left">Note</th>
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<td align="left" valign="top">
<p>Please note that since this opcode generates its output using input parameters (on the right side of the opcode), these variables must be initialized before use, otherwise a 'used before defined' error will occur. You can use the <a class="link" href="init.html" title="init"><em class="citetitle">init</em></a> opcode for this.</p>
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<div class="refsect1">
<a id="idm281472937324568"></a>
<h2>Examples</h2>
<p>
Here is an example of the fin opcode. It uses the file <a class="ulink" href="examples/fin.csd" target="_top"><em class="citetitle">fin.csd</em></a> and <a class="ulink" href="examples/fox.wav" target="_top"><em class="citetitle">fox.wav</em></a>.
</p>
<div class="example">
<a id="idm281472937321864"></a>
<p class="title">
<strong>Example 278. Example of the fin 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>
<div class="refsect1">
<a id="idm281472769545576"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac <span class="c1">;;;realtime audio out</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">; -o fin.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="kd">instr</span> <span class="nf">1</span>
a<span class="n">snd</span> <span class="nb">init</span> <span class="mi">0</span> <span class="c1">;input of fin must be initialized</span>
<span class="nb">fin</span> <span class="s">"fox.wav"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> a<span class="n">snd</span> <span class="c1">;read audiofile</span>
a<span class="n">env</span> <span class="nb">follow</span> a<span class="n">snd</span><span class="p">,</span> <span class="mf">0.01</span> <span class="c1">;envelope follower</span>
k<span class="n">env</span> <span class="nb">downsamp</span> a<span class="n">env</span>
a<span class="n">sig</span> <span class="nb">rand</span> k<span class="n">env</span> <span class="c1">;gate the noise with audiofile</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="p">,</span> a<span class="n">sig</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">3</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
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</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472937317672"></a>
<h2>See Also</h2>
<p>
<a class="link" href="fini.html" title="fini"><em class="citetitle">fini</em></a>,
<a class="link" href="fink.html" title="fink"><em class="citetitle">fink</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472937314664"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Gabriel Maldonado</td>
</tr>
<tr>
<td>Italy</td>
</tr>
<tr>
<td>1999</td>
</tr>
<tr>
<td>Author: John ffitch</td>
</tr>
<tr>
<td>NUIM, 2013</td>
</tr>
</table>
<p>
</p>
<p>New in Csound version 3.56</p>
<p>Array version new in 6.01</p>
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distrib
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Mageia
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7
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armv7hl
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media
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core-release
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5fcfcb7517038d1f44ab4e478e6e61fa
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