<?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>GEN02</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="ScoregensTop.html" title="Score Statements and GEN Routines" /> <link rel="prev" href="GEN01.html" title="GEN01" /> <link rel="next" href="GEN03.html" title="GEN03" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">GEN02</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="GEN01.html">Prev</a> </td> <th width="60%" align="center">Score Statements and GEN Routines</th> <td width="20%" align="right"> <a accesskey="n" href="GEN03.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry" title="GEN02"> <a id="GEN02"></a> <div class="titlepage"></div> <a id="IndexGEN02" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">GEN02</span> </h2> <p>GEN02 — Transfers data from immediate pfields into a function table. </p> </div> <div class="refsect1" title="Description"> <a id="idp77075360"></a> <h2>Description</h2> <p> This subroutine transfers data from immediate pfields into a function table. </p> </div> <div class="refsect1" title="Syntax"> <a id="idp77076152"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>f</strong></span> # time size 2 v1 v2 v3 ...</pre> </div> <div class="refsect1" title="Initialization"> <a id="idp77079488"></a> <h2>Initialization</h2> <p> <span class="emphasis"><em>size</em></span> -- number of points in the table. Must be a power of 2 or a power-of-2 plus 1 (see <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle">f statement</em></a>). The maximum tablesize is 16777216 (2<sup>24</sup>) points. </p> <p> <span class="emphasis"><em>v1, v2, v3,</em></span> etc. -- values to be copied directly into the table space. The number of values is limited by the compile-time variable <span class="emphasis"><em>PMAX</em></span>, which controls the maximum pfields (currently 1000). The values copied may include the table guard point; any table locations not filled will contain zeros. </p> <div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;"> <table border="0" summary="Note: Note"> <tr> <td rowspan="2" align="center" valign="top" width="25"> <img alt="[Note]" src="images/note.png" /> </td> <th align="left">Note</th> </tr> <tr> <td align="left" valign="top"> <p> If p4 (the GEN routine number is positive, the table will be post-normalized (rescaled to a maximum absolute value of 1 after generation). A negative p4 will cause rescaling to be skipped. You will usually want to use -2 with this GEN function, so that your values are not normalized. </p> </td> </tr> </table> </div> </div> <div class="refsect1" title="Examples"> <a id="idp77137840"></a> <h2>Examples</h2> <p> Here is an example of the GEN02 routine. It uses the files <a class="ulink" href="examples/gen02.csd" target="_top"><em class="citetitle">gen02.csd</em></a>. </p> <div class="example"> <a id="idp77138816"></a> <p class="title"> <strong>Example 1038. Example of the GEN02 routine.</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> -odac <span class="comment">;;;realtime audio out</span> <span class="comment">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span> <span class="comment">; For Non-realtime ouput leave only the line below:</span> <span class="comment">; -o gen02.wav -W ;;; for file output any platform</span> <span class="csdtag"></CsOptions></span> <span class="csdtag"><CsInstruments></span> <span class="ohdr">sr</span> <span class="op">=</span> 44100 <span class="ohdr">ksmps</span> <span class="op">=</span> 32 <span class="ohdr">nchnls</span> <span class="op">=</span> 2 <span class="ohdr">0dbfs</span> <span class="op">=</span> 1 <span class="oblock">instr</span> 1 ifn <span class="op">=</span> p4 <span class="comment">;choose different tables of GEN02</span> kcps <span class="opc">init</span> 1<span class="op">/</span>p3 <span class="comment">;index over the length of entire note</span> kndx <span class="opc">phasor</span> kcps ixmode <span class="op">=</span> 1 <span class="comment">;normalize index data</span> kamp <span class="opc">tablei</span> kndx, ifn, ixmode asig <span class="opc">poscil</span> kamp, 440, 1 <span class="comment">;use GEN02 as envelope for amplitude</span> <span class="opc">outs</span> asig, asig <span class="oblock">endin</span> <span class="csdtag"></CsInstruments></span> <span class="csdtag"><CsScore></span> <span class="stamnt">f</span> 1 0 8192 10 1 <span class="comment">;sine wave</span> <span class="stamnt">f</span> 2 0 5 2 0 2 0 <span class="stamnt">f</span> 3 0 5 2 0 2 10 0 <span class="stamnt">f</span> 4 0 9 2 0 2 10 100 0 <span class="stamnt">i</span> 1 0 2 2 <span class="stamnt">i</span> 1 3 2 3 <span class="stamnt">i</span> 1 6 2 4 <span class="stamnt">e</span> <span class="csdtag"></CsScore></span> <span class="csdtag"></CsoundSynthesizer></span> </pre> </div> </div> <p><br class="example-break" /> <span>These are the diagrams of the waveforms of the GEN02 routines, as used in the example:</span> </p> <div class="mediaobject"> <img src="images/gen02_1.png" alt="f 2 0 5 2 0 2 0" /> <div class="caption"> <p>f 2 0 5 2 0 2 0</p> </div> </div> <p> </p> <div class="mediaobject"> <img src="images/gen02_2.png" alt="f 3 0 5 2 0 2 10 0" /> <div class="caption"> <p>f 3 0 5 2 0 2 10 0</p> </div> </div> <p> </p> <div class="mediaobject"> <img src="images/gen02_3.png" alt="f 4 0 9 2 0 2 10 100 0" /> <div class="caption"> <p>f 4 0 9 2 0 2 10 100 0</p> </div> </div> <p> </p> </div> <div class="refsect1" title="See Also"> <a id="idp77146512"></a> <h2>See Also</h2> <p> <a class="link" href="GEN17.html" title="GEN17"><em class="citetitle">GEN17</em></a> </p> </div> <div class="refsect1" title="Credits"> <a id="idp77147584"></a> <h2>Credits</h2> <p>December 2002. Thanks to Rasmus Ekman, corrected the limit of the <span class="emphasis"><em>PMAX</em></span> variable.</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="GEN01.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="ScoregensTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="GEN03.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">GEN01 </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> GEN03</td> </tr> </table> </div> </body> </html>