<?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>wgflute</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="wgclar.html" title="wgclar" /> <link rel="next" href="wgpluck.html" title="wgpluck" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">wgflute</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="wgclar.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="wgpluck.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry" title="wgflute"> <a id="wgflute"></a> <div class="titlepage"></div> <a id="IndexWgflute" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">wgflute</span> </h2> <p>wgflute — Creates a tone similar to a flute. </p> </div> <div class="refsect1" title="Description"> <a id="idp53845568"></a> <h2>Description</h2> <p> Audio output is a tone similar to a flute, using a physical model developed from Perry Cook, but re-coded for Csound. </p> </div> <div class="refsect1" title="Syntax"> <a id="idp53846032"></a> <h2>Syntax</h2> <pre class="synopsis">ares <span class="command"><strong>wgflute</strong></span> kamp, kfreq, kjet, iatt, idetk, kngain, kvibf, kvamp, ifn \ [, iminfreq] [, ijetrf] [, iendrf]</pre> </div> <div class="refsect1" title="Initialization"> <a id="idp53857104"></a> <h2>Initialization</h2> <p> <span class="emphasis"><em>iatt</em></span> -- time in seconds to reach full blowing pressure. 0.1 seems to correspond to reasonable playing. </p> <p> <span class="emphasis"><em>idetk</em></span> -- time in seconds taken to stop blowing. 0.1 is a smooth ending </p> <p> <span class="emphasis"><em>ifn</em></span> -- table of shape of vibrato, usually a sine table, created by a function </p> <p> <span class="emphasis"><em>iminfreq</em></span> (optional) -- lowest frequency at which the instrument will play. If it is omitted it is taken to be the same as the initial kfreq. If <span class="emphasis"><em>iminfreq</em></span> is negative, initialization will be skipped. </p> <p> <span class="emphasis"><em>ijetrf</em></span> (optional, default=0.5) -- amount of reflection in the breath jet that powers the flute. Default value is 0.5. </p> <p> <span class="emphasis"><em>iendrf</em></span> (optional, default=0.5) -- reflection coefficient of the breath jet. Default value is 0.5. Both <span class="emphasis"><em>ijetrf</em></span> and <span class="emphasis"><em>iendrf</em></span> are used in the calculation of the pressure differential. </p> </div> <div class="refsect1" title="Performance"> <a id="idp53895176"></a> <h2>Performance</h2> <p> <span class="emphasis"><em>kamp</em></span> -- Amplitude of note. </p> <p> <span class="emphasis"><em>kfreq</em></span> -- Frequency of note played. While it can be varied in performance, I have not tried it. </p> <p> <span class="emphasis"><em>kjet</em></span> -- a parameter controlling the air jet. Values should be positive, and about 0.3. The useful range is approximately 0.08 to 0.56. </p> <p> <span class="emphasis"><em>kngain</em></span> -- amplitude of the noise component, about 0 to 0.5 </p> <p> <span class="emphasis"><em>kvibf</em></span> -- frequency of vibrato in Hertz. Suggested range is 0 to 12 </p> <p> <span class="emphasis"><em>kvamp</em></span> -- amplitude of the vibrato </p> </div> <div class="refsect1" title="Examples"> <a id="idp53898952"></a> <h2>Examples</h2> <p> Here is an example of the wgflute opcode. It uses the file <a class="ulink" href="examples/wgflute.csd" target="_top"><em class="citetitle">wgflute.csd</em></a>. </p> <div class="example"> <a id="idp53899936"></a> <p class="title"> <strong>Example 992. Example of the wgflute 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> -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 wgflute.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 kfreq <span class="op">=</span> 440 kjet <span class="opc">init</span> p4 <span class="comment">;vary air jet</span> iatt <span class="op">=</span> 0.1 idetk <span class="op">=</span> 0.1 kngain <span class="op">=</span> 0.15 kvibf <span class="op">=</span> 5.925 kvamp <span class="op">=</span> 0.05 asig <span class="opc">wgflute</span> .8, kfreq, kjet, iatt, idetk, kngain, kvibf, kvamp, 1 <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 16384 10 1 <span class="comment">;sine wave</span> <span class="stamnt">i</span> 1 0 2 0.02 <span class="comment">;more air jet</span> <span class="stamnt">i</span> 1 + 2 0.32 <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="Credits"> <a id="idp53902248"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: John ffitch (after Perry Cook)</td> </tr> <tr> <td>University of Bath, Codemist Ltd.</td> </tr> <tr> <td>Bath, UK</td> </tr> </table> <p> </p> <p>New in Csound version 3.47</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="wgclar.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="wgpluck.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">wgclar </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> wgpluck</td> </tr> </table> </div> </body> </html>