<?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>ftcps</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="OpcodesTop.html" title="Orchestra Opcodes and Operators" /> <link rel="prev" href="ftconv.html" title="ftconv" /> <link rel="next" href="ftfree.html" title="ftfree" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">ftcps</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="ftconv.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="ftfree.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="ftcps"></a> <div class="titlepage"></div> <a id="IndexFtcps" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">ftcps</span> </h2> <p>ftcps — Returns the base frequency of a stored function table in Hz. </p> </div> <div class="refsect1"> <a id="idm281472928811160"></a> <h2>Description</h2> <p> Returns the base frequency of a stored function table in Hz.. </p> </div> <div class="refsect1"> <a id="idm281472928744520"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>ftcps</strong></span>(x) (init-rate args only)</pre> </div> <div class="refsect1"> <a id="idm281472928742456"></a> <h2>Performance</h2> <p> Returns the base frequency of stored function table, number <span class="emphasis"><em>x</em></span>. <span class="emphasis"><em>ftcps</em></span> is designed for tables storing audio waveforms read from files (see <a class="link" href="GEN01.html" title="GEN01"><em class="citetitle">GEN01</em></a>). </p> <p> <span class="emphasis"><em>ftcps</em></span> returns -1 in case of an error (no base frequency set in table or non-existent table). </p> </div> <div class="refsect1"> <a id="idm281472928738344"></a> <h2>Examples</h2> <p> Here is an example of the ftcps opcode. </p> <div class="example"> <a id="idm281472928737288"></a> <p class="title"> <strong>Example 356. Example of the ftcps 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="idm281472759288104"></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</span> -odac -iadc <span class="c1">;;;RT audio I/O</span> <span class="c1">; For Non-realtime ouput leave only the line below:</span> <span class="c1">; -o ftlen.wav -W ;;; for file output any platform</span> <span class="nt"></CsOptions></span> <span class="nt"><CsInstruments></span> <span class="c1">; Initialize the global variables.</span> <span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span> <span class="vg">kr</span> <span class="o">=</span> <span class="mi">4410</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">1</span> <span class="c1">; Instrument #1.</span> <span class="kd">instr</span> <span class="nf">1</span> <span class="c1">; Print out the base frequency of Table #1.</span> <span class="c1">; if it has been set in the original file.</span> i<span class="n">cps</span> <span class="o">=</span> <span class="nb">ftcps</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="nb">print</span> i<span class="n">cps</span> <span class="kd">endin</span> <span class="nt"></CsInstruments></span> <span class="nt"><CsScore></span> <span class="c1">; Table #1: Use an audio file, Csound will determine its base frequency, if set.</span> <span class="nb">f</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">1</span> <span class="s">"sample.wav"</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="c1">; Play Instrument #1 for 1 second.</span> <span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">1</span> <span class="nb">e</span> <span class="nt"></CsScore></span> <span class="nt"></CsoundSynthesizer></span> </pre> </div> </div> </div> <p><br class="example-break" /> </p> </div> <div class="refsect1"> <a id="idm281472928733096"></a> <h2>See Also</h2> <p> <a class="link" href="ftchnls.html" title="ftchnls"><em class="citetitle">ftchnls</em></a>, <a class="link" href="ftlptim.html" title="ftlptim"><em class="citetitle">ftlptim</em></a>, <a class="link" href="ftsr.html" title="ftsr"><em class="citetitle">ftsr</em></a>, <a class="link" href="nsamp.html" title="nsamp"><em class="citetitle">nsamp</em></a> </p> </div> <div class="refsect1"> <a id="idm281472928728104"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: Victor Lazzarini</td> </tr> <tr> <td>2010</td> </tr> </table> <p> </p> <p>Example written by Victor Lazzarini</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="ftconv.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="ftfree.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">ftconv </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> ftfree</td> </tr> </table> </div> </body> </html>