<?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>vbapzmove</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="vbapz.html" title="vbapz" /> <link rel="next" href="vcella.html" title="vcella" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">vbapzmove</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="vbapz.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="vcella.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry" title="vbapzmove"> <a id="vbapzmove"></a> <div class="titlepage"></div> <a id="IndexVbapzmove" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">vbapzmove</span> </h2> <p>vbapzmove — Writes a multi-channel audio signal to a ZAK array with moving virtual sources. </p> </div> <div class="refsect1" title="Description"> <a id="idp50755352"></a> <h2>Description</h2> <p> Writes a multi-channel audio signal to a ZAK array with moving virtual sources. </p> </div> <div class="refsect1" title="Syntax"> <a id="idp50756040"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>vbapzmove</strong></span> inumchnls, istartndx, asig, idur, ispread, ifldnum, ifld1, \ ifld2, [...]</pre> </div> <div class="refsect1" title="Initialization"> <a id="idp50803504"></a> <h2>Initialization</h2> <p> <span class="emphasis"><em>inumchnls</em></span> -- number of channels to write to the ZA array. Must be in the range 2 - 256. </p> <p> <span class="emphasis"><em>istartndx</em></span> -- first index or position in the ZA array to use </p> <p> <span class="emphasis"><em>idur</em></span> -- the duration over which the movement takes place. </p> <p> <span class="emphasis"><em>ispread</em></span> -- spreading of the virtual source (range 0 - 100). If value is zero, conventional amplitude panning is used. When <span class="emphasis"><em>ispread</em></span> is increased, the number of loudspeakers used in panning increases. If value is 100, the sound is applied to all loudspeakers. </p> <p> <span class="emphasis"><em>ifldnum</em></span> -- number of fields (absolute value must be 2 or larger). If <span class="emphasis"><em>ifldnum</em></span> is positive, the virtual source movement is a polyline specified by given directions. Each transition is performed in an equal time interval. If <span class="emphasis"><em>ifldnum</em></span> is negative, specified angular velocities are applied to the virtual source during specified relative time intervals (see below). </p> <p> <span class="emphasis"><em>ifld1, ifld2, ...</em></span> -- azimuth angles or angular velocities, and relative durations of movement phases (see below). </p> </div> <div class="refsect1" title="Performance"> <a id="idp50807968"></a> <h2>Performance</h2> <p> <span class="emphasis"><em>asig</em></span> -- audio signal to be panned </p> <p> The opcode <span class="emphasis"><em>vbapzmove</em></span> is the multiple channel analog of the opcodes like <a class="link" href="vbap4move.html" title="vbap4move"><em class="citetitle">vbap4move</em></a>, working on <span class="emphasis"><em>inumchnls</em></span> and using a ZAK array for output. </p> <div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;"> <table border="0" summary="Warning"> <tr> <td rowspan="2" align="center" valign="top" width="25"> <img alt="[Warning]" src="images/warning.png" /> </td> <th align="left">Warning</th> </tr> <tr> <td align="left" valign="top"> <p>Please note that all <span class="emphasis"><em>vbap</em></span> panning opcodes require the <span class="emphasis"><em>vbap</em></span> system to be initialized using <a class="link" href="vbaplsinit.html" title="vbaplsinit"><em class="citetitle">vbaplsinit</em></a>.</p> </td> </tr> </table> </div> </div> <div class="refsect1" title="Examples"> <a id="idp50811416"></a> <h2>Examples</h2> <p> See the entry for <a class="link" href="vbap8move.html" title="vbap8move"><em class="citetitle">vbap8move</em></a> for an example of usage of the <span class="emphasis"><em>vbapXmove</em></span> opcodes. </p> </div> <div class="refsect1" title="Reference"> <a id="idp50812776"></a> <h2>Reference</h2> <p> Ville Pulkki: <span class="quote">“<span class="quote">Virtual Sound Source Positioning Using Vector Base Amplitude Panning</span>”</span> <span class="emphasis"><em>Journal of the Audio Engineering Society</em></span>, 1997 June, Vol. 45/6, p. 456. </p> </div> <div class="refsect1" title="See Also"> <a id="idp50813960"></a> <h2>See Also</h2> <p> <a class="link" href="vbap16.html" title="vbap16"><em class="citetitle">vbap16</em></a>, <a class="link" href="vbap16move.html" title="vbap16move"><em class="citetitle">vbap16move</em></a>, <a class="link" href="vbap4.html" title="vbap4"><em class="citetitle">vbap4</em></a>, <a class="link" href="vbap4move.html" title="vbap4move"><em class="citetitle">vbap4move</em></a>, <a class="link" href="vbap8.html" title="vbap8"><em class="citetitle">vbap8</em></a>, <a class="link" href="vbap8move.html" title="vbap8move"><em class="citetitle">vbap8move</em></a>, <a class="link" href="vbaplsinit.html" title="vbaplsinit"><em class="citetitle">vbaplsinit</em></a>, <a class="link" href="vbapz.html" title="vbapz"><em class="citetitle">vbapz</em></a>, </p> </div> <div class="refsect1" title="Credits"> <a id="idp50818392"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>John ffitch</td> </tr> <tr> <td>University of Bath/Codemist Ltd.</td> </tr> <tr> <td>Bath, UK</td> </tr> <tr> <td>May 2000</td> </tr> </table> <p> </p> <p>New in Csound Version 4.07</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="vbapz.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="vcella.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">vbapz </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> vcella</td> </tr> </table> </div> </body> </html>