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<a id="IndexScale" class="indexterm"></a>
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<h2>
<span class="refentrytitle">scale</span>
</h2>
<p>scale —
Arbitrary signal scaling.
</p>
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<div class="refsect1">
<a id="idm281472893713624"></a>
<h2>Description</h2>
<p>
Scales incoming value to user-definable range. Similar to scale object found in popular dataflow languages.
</p>
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<a id="idm281472893712216"></a>
<h2>Syntax</h2>
<pre class="synopsis">kscl <span class="command"><strong>scale</strong></span> kinput, kmax, kmin</pre>
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<a id="idm281472893709976"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kin</em></span> -- Input value. Can originate from any k-rate source as long as that source's output is in range 0-1.
</p>
<p>
<span class="emphasis"><em>kmin</em></span> -- Minimum value of the resultant scale operation.
</p>
<p>
<span class="emphasis"><em>kmax</em></span> -- Maximum value of the resultant scale operation.
</p>
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<div class="refsect1">
<a id="idm281472893706280"></a>
<h2>Examples</h2>
<p>
Here is an example of the scale opcode. It uses the file <a class="ulink" href="examples/scale.csd" target="_top"><em class="citetitle">scale.csd</em></a>.
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<a id="idm281472893704504"></a>
<p class="title">
<strong>Example 849. Example of the scale 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="idm281472714549592"></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>
<span class="c1">; Audio out Audio in Silent</span>
-odac -iadc -d <span class="c1">;;;realtime output</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">22050</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">10</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="cm">/*--- ---*/</span>
<span class="kd">instr</span> <span class="nf">1</span> <span class="c1">; scale test</span>
k<span class="n">mod</span> <span class="nb">ctrl7</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
<span class="nb">printk2</span> k<span class="n">mod</span>
k<span class="n">out</span> <span class="nb">scale</span> k<span class="n">mod</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="o">-</span><span class="mi">127</span>
<span class="nb">printk2</span> k<span class="n">out</span>
<span class="kd">endin</span>
<span class="cm">/*--- ---*/</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">8888</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
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</div>
<p><br class="example-break" />
</p>
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<div class="refsect1">
<a id="idm281472893700264"></a>
<h2>See Also</h2>
<p>
<a class="link" href="gainslider.html" title="gainslider"><em class="citetitle">gainslider</em></a>,
<a class="link" href="logcurve.html" title="logcurve"><em class="citetitle">logcurve</em></a>,
<a class="link" href="expcurve.html" title="expcurve"><em class="citetitle">expcurve</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472893696232"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: David Akbari</td>
</tr>
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<td>October</td>
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<td>2006</td>
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