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<h2>
<span class="refentrytitle">ftcps</span>
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<p>ftcps —
Returns the base frequency of a stored function table in Hz.
</p>
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<div class="refsect1" title="Description">
<a id="idp24573632"></a>
<h2>Description</h2>
<p>
Returns the base frequency of a stored function table in Hz..
</p>
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<div class="refsect1" title="Syntax">
<a id="idp24574392"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>ftcps</strong></span>(x) (init-rate args only)</pre>
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<div class="refsect1" title="Performance">
<a id="idp24584768"></a>
<h2>Performance</h2>
<p>
Returns the base frequency of stored function table, number <span class="emphasis"><em>x</em></span>. <span class="emphasis"><em>ftcps</em></span> is designed for tables storing audio waveforms read from files (see <a class="link" href="GEN01.html" title="GEN01"><em class="citetitle">GEN01</em></a>).
</p>
<p>
<span class="emphasis"><em>ftcps</em></span> returns -1 in case of an error (no base frequency set in table or non-existent table).
</p>
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<div class="refsect1" title="Examples">
<a id="idp24619784"></a>
<h2>Examples</h2>
<p>
Here is an example of the ftcps opcode.
</p>
<div class="example">
<a id="idp24620368"></a>
<p class="title">
<strong>Example 303. Example of the ftcps 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>
<span class="comment">; Audio out Audio in</span>
-odac -iadc <span class="comment">;;;RT audio I/O</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o ftlen.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="comment">; Initialize the global variables.</span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">kr</span> <span class="op">=</span> 4410
<span class="ohdr">ksmps</span> <span class="op">=</span> 10
<span class="ohdr">nchnls</span> <span class="op">=</span> 1
<span class="comment">; Instrument #1.</span>
<span class="oblock">instr</span> 1
<span class="comment">; Print out the base frequency of Table #1.</span>
<span class="comment">; if it has been set in the original file.</span>
icps <span class="op">=</span> <span class="opc">ftcps</span>(1)
<span class="opc">print</span> icps
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="comment">; Table #1: Use an audio file, Csound will determine its base frequency, if set.</span>
<span class="stamnt">f</span> 1 0 0 1 "sample.wav" 0 0 0
<span class="comment">; Play Instrument #1 for 1 second.</span>
<span class="stamnt">i</span> 1 0 1
<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="idp24622640"></a>
<h2>See Also</h2>
<p>
<a class="link" href="ftchnls.html" title="ftchnls"><em class="citetitle">ftchnls</em></a>,
<a class="link" href="ftlptim.html" title="ftlptim"><em class="citetitle">ftlptim</em></a>,
<a class="link" href="ftsr.html" title="ftsr"><em class="citetitle">ftsr</em></a>,
<a class="link" href="nsamp.html" title="nsamp"><em class="citetitle">nsamp</em></a>
</p>
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<div class="refsect1" title="Credits">
<a id="idp24625152"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
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<td>Author: Victor Lazzarini</td>
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<td>2010</td>
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<p>
</p>
<p>Example written by Victor Lazzarini</p>
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