<?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>ATSpartialtap</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="ATSreadnz.html" title="ATSreadnz" /> <link rel="next" href="ATSsinnoi.html" title="ATSsinnoi" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">ATSpartialtap</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="ATSreadnz.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="ATSsinnoi.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="ATSpartialtap"></a> <div class="titlepage"></div> <a id="IndexATSpartialtap" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">ATSpartialtap</span> </h2> <p>ATSpartialtap — returns a frequency, amplitude pair from an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a> opcode. </p> </div> <div class="refsect1"> <a id="idm281472950151576"></a> <h2>Description</h2> <p> <span class="emphasis"><em>ATSpartialtap</em></span> takes a partial number and returns a frequency, amplitude pair. The frequency and amplitude data comes from an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a> opcode. </p> </div> <div class="refsect1"> <a id="idm281472950148888"></a> <h2>Syntax</h2> <pre class="synopsis">kfrq, kamp <span class="command"><strong>ATSpartialtap</strong></span> ipartialnum</pre> </div> <div class="refsect1"> <a id="idm281472950146680"></a> <h2>Initialization</h2> <p> <span class="emphasis"><em>ipartialnum</em></span> - indicates the partial that the <span class="emphasis"><em>ATSpartialtap</em></span> opcode should read from an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a>. </p> </div> <div class="refsect1"> <a id="idm281472950143608"></a> <h2>Performance</h2> <p><span class="emphasis"><em>kfrq</em></span> - returns the frequency value for the requested partial.</p> <p><span class="emphasis"><em>kamp</em></span> - returns the amplitude value for the requested partial.</p> <p><span class="emphasis"><em>ATSpartialtap</em></span> takes a partial number and returns a frequency, amplitude pair. The frequency and amplitude data comes from an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a> opcode. This is more restricted version of <a class="link" href="ATSread.html" title="ATSread"><em class="citetitle">ATSread</em></a>, since each <a class="link" href="ATSread.html" title="ATSread"><em class="citetitle">ATSread</em></a> opcode has its own independent time pointer, and <span class="emphasis"><em>ATSpartialtap</em></span> is restricted to the data given by an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a>. Its simplicity is its attractive feature.</p> </div> <div class="refsect1"> <a id="idm281472950136184"></a> <h2>Examples</h2> <p> Here is an example of the ATSpartialtap opcode. It uses the file <a class="ulink" href="examples/ATSpartialtap.csd" target="_top"><em class="citetitle">ATSpartialtap.csd</em></a>. </p> <div class="example"> <a id="idm281472950134392"></a> <p class="title"> <strong>Example 73. Example of the ATSpartialtap opcode.</strong> </p> <div class="example-contents"> <div class="refsect1"> <a id="idm281472785024904"></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> -odac <span class="c1">;;;RT audio out</span> <span class="c1">;-iadc ;;;uncomment -iadc for RT audio input is needed too</span> <span class="c1">; For Non-realtime ouput leave only the line below:</span> <span class="c1">; -o ATSpartialtap.wav -W ;;; for file output any platform</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">32</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="mi">1</span> <span class="kd">instr</span> <span class="nf">1</span> <span class="c1">; "beats.ats" is created by atsa</span> k<span class="n">time</span> <span class="nb">line</span> <span class="mi">0</span><span class="p">,</span> <span class="nb">p3</span><span class="p">,</span> <span class="mi">2</span> <span class="nb">ATSbufread</span> k<span class="n">time</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"beats.ats"</span><span class="p">,</span> <span class="mi">30</span> k<span class="n">freq1</span><span class="p">,</span> k<span class="n">am1</span> <span class="nb">ATSpartialtap</span> <span class="mi">5</span> k<span class="n">freq2</span><span class="p">,</span> k<span class="n">am2</span> <span class="nb">ATSpartialtap</span> <span class="mi">20</span> k<span class="n">freq3</span><span class="p">,</span> k<span class="n">am3</span> <span class="nb">ATSpartialtap</span> <span class="mi">30</span> a<span class="n">out1</span> <span class="nb">oscil</span> k<span class="n">am1</span><span class="p">,</span> k<span class="n">freq1</span><span class="p">,</span> <span class="mi">1</span> a<span class="n">out2</span> <span class="nb">oscil</span> k<span class="n">am2</span><span class="p">,</span> k<span class="n">freq2</span><span class="p">,</span> <span class="mi">1</span> a<span class="n">out3</span> <span class="nb">oscil</span> k<span class="n">am3</span><span class="p">,</span> k<span class="n">freq3</span><span class="p">,</span> <span class="mi">1</span> a<span class="n">out</span> <span class="o">=</span> <span class="p">(</span>a<span class="n">out1</span><span class="o">+</span>a<span class="n">out2</span><span class="o">+</span>a<span class="n">out3</span><span class="p">)</span><span class="o">*</span><span class="mi">10</span> <span class="c1">; amplify some more</span> <span class="nb">outs</span> a<span class="n">out</span><span class="p">,</span> a<span class="n">out</span> <span class="kd">endin</span> <span class="nt"></CsInstruments></span> <span class="nt"><CsScore></span> <span class="c1">; sine wave.</span> <span class="nb">f</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">16384</span> <span class="mi">10</span> <span class="mi">1</span> <span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">2</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> <p> This example here uses an <span class="emphasis"><em>ATSpartialtap</em></span>, and an <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a> to read partials 5, 20 and 30 from 'beats.ats'. These amplitudes and frequencies could be used to re-synthesize those partials, or something all together different. </p> </div> <div class="refsect1"> <a id="idm281472950130536"></a> <h2>See also</h2> <p><a class="link" href="ATSread.html" title="ATSread"><em class="citetitle">ATSread</em></a>, <a class="link" href="ATSreadnz.html" title="ATSreadnz"><em class="citetitle">ATSreadnz</em></a>, <a class="link" href="ATSinfo.html" title="ATSinfo"><em class="citetitle">ATSinfo</em></a>, <a class="link" href="ATSsinnoi.html" title="ATSsinnoi"><em class="citetitle">ATSsinnoi</em></a>, <a class="link" href="ATSbufread.html" title="ATSbufread"><em class="citetitle">ATSbufread</em></a>, <a class="link" href="ATScross.html" title="ATScross"><em class="citetitle">ATScross</em></a>, <a class="link" href="ATSinterpread.html" title="ATSinterpread"><em class="citetitle">ATSinterpread</em></a>, <a class="link" href="ATSadd.html" title="ATSadd"><em class="citetitle">ATSadd</em></a>, <a class="link" href="ATSaddnz.html" title="ATSaddnz"><em class="citetitle">ATSaddnz</em></a></p> </div> <div class="refsect1"> <a id="idm281472950121000"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: Alex Norman</td> </tr> <tr> <td>Seattle,Washington</td> </tr> <tr> <td>2004</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="ATSreadnz.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="ATSsinnoi.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">ATSreadnz </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> ATSsinnoi</td> </tr> </table> </div> </body> </html>