<?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>Random (Noise) Generators</title> <link rel="stylesheet" type="text/css" href="csound.css" /> <link rel="stylesheet" type="text/css" href="syntax-highlighting.css" /> <meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /> <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" /> <link rel="up" href="SiggenTop.html" title="Signal Generators" /> <link rel="prev" href="SiggenPhasors.html" title="Phasors" /> <link rel="next" href="SiggenSample.html" title="Sample Playback" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Random (Noise) Generators</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="SiggenPhasors.html">Prev</a> </td> <th width="60%" align="center">Signal Generators</th> <td width="20%" align="right"> <a accesskey="n" href="SiggenSample.html">Next</a></td> </tr> </table> <hr /> </div> <div class="section"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="SiggenNoise"></a>Random (Noise) Generators</h2> </div> </div> </div> <p> Opcodes that generate random numbers are: </p> <div class="itemizedlist"> <ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"> <p> <a class="link" href="betarand.html" title="betarand"> <em class="citetitle">betarnd</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="bexprnd.html" title="bexprnd"> <em class="citetitle">bexprnd</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="cauchy.html" title="cauchy"> <em class="citetitle">cauchy</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="cuserrnd.html" title="cuserrnd"> <em class="citetitle">cuserrnd</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="duserrnd.html" title="duserrnd"> <em class="citetitle">duserrnd</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="dust.html" title="dust"> <em class="citetitle">dust</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="dust2.html" title="dust2"> <em class="citetitle">dust2</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="exprand.html" title="exprand"> <em class="citetitle">exprand</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="fractalnoise.html" title="fractalnoise"> <em class="citetitle">fractalnoise</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="gauss.html" title="gauss"> <em class="citetitle">gauss</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="gausstrig.html" title="gausstrig"> <em class="citetitle">gausstrig</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="linrand.html" title="linrand"> <em class="citetitle">linrand</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="noise.html" title="noise"> <em class="citetitle">noise</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="pcauchy.html" title="pcauchy"> <em class="citetitle">pcauchy</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="pinkish.html" title="pinkish"> <em class="citetitle">pinkish</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="pinker.html" title="pinker"> <em class="citetitle">pinker</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="poisson.html" title="poisson"> <em class="citetitle">poisson</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="rand.html" title="rand"> <em class="citetitle">rand</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="randh.html" title="randh"> <em class="citetitle">randh</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="randi.html" title="randi"> <em class="citetitle">randi</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="rnd31.html" title="rnd31"> <em class="citetitle">rnd31</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="random.html" title="random"> <em class="citetitle">random</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="randomh.html" title="randomh"> <em class="citetitle">randomh</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="randomi.html" title="randomi"> <em class="citetitle">randomi</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="trirand.html" title="trirand"> <em class="citetitle">trirand</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="unirand.html" title="unirand"> <em class="citetitle">unirand</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="urd.html" title="urd"> <em class="citetitle">urd</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="weibull.html" title="weibull"> <em class="citetitle">weibull</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="jitter.html" title="jitter"> <em class="citetitle">jitter</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="jitter2.html" title="jitter2"> <em class="citetitle">jitter2</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="trandom.html" title="trandom"> <em class="citetitle">trandom</em> </a> </p> </li> </ul> </div> <p> </p> <p> See <a class="link" href="seed.html" title="seed"><em class="citetitle">seed</em></a> which sets the global seed value for all x-class noise generators, as well as other opcodes that use a random call, such as <a class="link" href="grain.html" title="grain"><em class="citetitle">grain</em></a>. <a class="link" href="rand.html" title="rand"><em class="citetitle">rand</em></a>, <a class="link" href="randh.html" title="randh"><em class="citetitle">randh</em></a>, <a class="link" href="randi.html" title="randi"><em class="citetitle">randi</em></a>, <a class="link" href="rnd.html" title="rnd"><em class="citetitle">rnd(x)</em></a> and <a class="link" href="birnd.html" title="birnd"><em class="citetitle">birnd(x)</em></a> are not affected by seed. </p> <p>See also functions which generate random numbers in the section <a class="link" href="MathRndfunc.html" title="Random Functions"><em class="citetitle">Random Functions</em></a>. </p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="SiggenPhasors.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="SiggenTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="SiggenSample.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">Phasors </td> <td width="20%" align="center"> <a 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