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<h2>
<span class="refentrytitle">linlin</span>
</h2>
<p>linlin —
Linear to linear interpolation
</p>
</div>
<div class="refsect1">
<a id="idm281472920707384"></a>
<h2>Description</h2>
<p>
Maps a linear range of values to another linear range of values.
</p>
</div>
<div class="refsect1">
<a id="idm281472920704152"></a>
<h2>Syntax</h2>
<pre class="synopsis">kout <span class="command"><strong>linlin</strong></span> kin, ksrclo, ksrchi, kdstlo, kdsthi</pre>
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<div class="refsect1">
<a id="idm281472920701528"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kin </em></span> -- Input signal
</p>
<p>
<span class="emphasis"><em>ksrclo</em></span> -- Lower limit of input range
</p>
<p>
<span class="emphasis"><em>ksrchi</em></span> -- Higher limit of input range
</p>
<p>
<span class="emphasis"><em>kdstlo</em></span> -- Lower limit of output range
</p>
<p>
<span class="emphasis"><em>kdsthi</em></span> -- Higher limit of output range
</p>
<p>
</p>
<pre class="programlisting">
out = (in - srclo) / (srchi - srclo) * (dsthi - dstlo) + dstlo
</pre>
<p>
</p>
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<div class="refsect1">
<a id="idm281472920624200"></a>
<h2>Examples</h2>
<p>
Here is an example of the linlin opcode. It uses the file <a class="ulink" href="examples/linlin.csd" target="_top"><em class="citetitle">linlin.csd</em></a>.
</p>
<div class="example">
<a id="idm281472920620952"></a>
<p class="title">
<strong>Example 461. Example of the linlin opcode.</strong>
</p>
<div class="example-contents">
<div class="refsect1">
<a id="idm281472748074456"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></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">128</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="mf">1.0</span>
<span class="c1">; Map a value within the range 1-3 to the range 0-10.</span>
<span class="kd">instr</span> <span class="nf">1</span>
k<span class="n">x</span> <span class="nb">line</span> <span class="mi">1</span><span class="p">,</span> <span class="nb">p3</span><span class="p">,</span> <span class="mi">3</span>
k<span class="n">y</span> <span class="nb">linlin</span> k<span class="n">x</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">10</span>
<span class="nb">printks</span> <span class="s">"kx: %f ky: %f </span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="o">/</span><span class="vg">kr</span><span class="p">,</span> k<span class="n">x</span><span class="p">,</span> k<span class="n">y</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">1</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
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</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472920619192"></a>
<h2>See Also</h2>
<p>
<a class="link" href="scale.html" title="scale"><em class="citetitle">scale</em></a>,
<a class="link" href="ntrpol.html" title="ntrpol"><em class="citetitle">ntrpol</em></a>,
<a class="link" href="bpf.html" title="bpf"><em class="citetitle">bpf</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472920614840"></a>
<h2>Credits</h2>
<p>By: Eduardo Moguillansky 2017</p>
<p>New in version 6.09</p>
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