<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>scale</title> <link rel="stylesheet" type="text/css" href="csound.css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /> <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" /> <link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" /> <link rel="prev" href="sandpaper.html" title="sandpaper" /> <link rel="next" href="scalet.html" title="scalet" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">scale</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="sandpaper.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="scalet.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry" title="scale"> <a id="scale"></a> <div class="titlepage"></div> <a id="IndexScale" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">scale</span> </h2> <p>scale — Arbitrary signal scaling. </p> </div> <div class="refsect1" title="Description"> <a id="idp41292328"></a> <h2>Description</h2> <p> Scales incoming value to user-definable range. Similar to scale object found in popular dataflow languages. </p> </div> <div class="refsect1" title="Syntax"> <a id="idp41293192"></a> <h2>Syntax</h2> <pre class="synopsis">kscl <span class="command"><strong>scale</strong></span> kinput, kmax, kmin</pre> </div> <div class="refsect1" title="Performance"> <a id="idp41303696"></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> </div> <div class="refsect1" title="Examples"> <a id="idp41345560"></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>. </p> <div class="example"> <a id="idp41346456"></a> <p class="title"> <strong>Example 737. 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> <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 Silent</span> -odac -iadc -d <span class="comment">;;;realtime output</span> <span class="csdtag"></CsOptions></span> <span class="csdtag"><CsInstruments></span> <span class="ohdr">sr</span> <span class="op">=</span> 22050 <span class="ohdr">ksmps</span> <span class="op">=</span> 10 <span class="ohdr">nchnls</span> <span class="op">=</span> 2 <span class="op">/</span><span class="op">*</span><span class="op">-</span><span class="op">-</span><span class="op">-</span> <span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">*</span><span class="op">/</span> <span class="oblock">instr</span> 1 <span class="comment">; scale test</span> kmod <span class="opc">ctrl7</span> 1, 1, 0, 1 <span class="opc">printk2</span> kmod kout <span class="opc">scale</span> kmod, 0, <span class="op">-</span>127 <span class="opc">printk2</span> kout <span class="oblock">endin</span> <span class="op">/</span><span class="op">*</span><span class="op">-</span><span class="op">-</span><span class="op">-</span> <span class="op">-</span><span class="op">-</span><span class="op">-</span><span class="op">*</span><span class="op">/</span> <span class="csdtag"></CsInstruments></span> <span class="csdtag"><CsScore></span> <span class="stamnt">i</span>1 0 8888 <span class="stamnt">e</span> <span class="csdtag"></CsScore></span> <span class="csdtag"></CsoundSynthesizer></span> </pre> </div> </div> <p><br class="example-break" /> </p> </div> <div class="refsect1" title="See Also"> <a id="idp41348776"></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" title="Credits"> <a id="idp41350816"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: David Akbari</td> </tr> <tr> <td>October</td> </tr> <tr> <td>2006</td> </tr> </table> <p> </p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="sandpaper.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="OpcodesTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="scalet.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">sandpaper </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> scalet</td> </tr> </table> </div> </body> </html>