<?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>dumpk3</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="dumpk2.html" title="dumpk2" /> <link rel="next" href="dumpk4.html" title="dumpk4" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">dumpk3</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="dumpk2.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="dumpk4.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="dumpk3"></a> <div class="titlepage"></div> <a id="IndexDumpk3" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">dumpk3</span> </h2> <p>dumpk3 — Periodically writes three orchestra control-signal values to an external file. </p> </div> <div class="refsect1"> <a id="idm281472940340792"></a> <h2>Description</h2> <p> Periodically writes three orchestra control-signal values to a named external file in a specific format. </p> </div> <div class="refsect1"> <a id="idm281472940299352"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>dumpk3</strong></span> ksig1, ksig2, ksig3, ifilname, iformat, iprd</pre> </div> <div class="refsect1"> <a id="idm281472940297272"></a> <h2>Initialization</h2> <p> <span class="emphasis"><em>ifilname</em></span> -- character string (in double quotes, spaces permitted) denoting the external file name. May either be a full path name with target directory specified or a simple filename to be created within the current directory </p> <p> <span class="emphasis"><em>iformat</em></span> -- specifies the output data format: </p> <div class="itemizedlist"> <ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"> <p>1 = 8-bit signed char(high order 8 bits of a 16-bit integer</p> </li> <li class="listitem"> <p>4 = 16-bit short integers</p> </li> <li class="listitem"> <p>5 = 32-bit long integers</p> </li> <li class="listitem"> <p>6 = 32-bit floats</p> </li> <li class="listitem"> <p>7 = ASCII long integers</p> </li> <li class="listitem"> <p>8 = ASCII floats (2 decimal places)</p> </li> </ul> </div> <p> </p> <p> Note that A-law and U-law output are not available, and that all formats except the last two are binary. The output file contains no header information. </p> <p> <span class="emphasis"><em>iprd</em></span> -- the period of <span class="emphasis"><em>ksig</em></span> output in seconds, rounded to the nearest orchestra control period. A value of 0 implies one control period (the enforced minimum), which will create an output file sampled at the orchestra control rate. </p> </div> <div class="refsect1"> <a id="idm281472940287384"></a> <h2>Performance</h2> <p> <span class="emphasis"><em>ksig1, ksig2, ksig3</em></span> -- control-rate signals </p> <p> This opcode allows three generated control signal values to be saved in a named external file. The file contains no self-defining header information. But it contains a regularly sampled time series, suitable for later input or analysis. There may be any number of <span class="emphasis"><em>dumpk3</em></span> opcodes in an instrument or orchestra but each must write to a different file. </p> </div> <div class="refsect1"> <a id="idm281472940284648"></a> <h2>Examples</h2> <p> Here is an example of the dumpk3 opcode. It uses the file <a class="ulink" href="examples/dumpk3.csd" target="_top"><em class="citetitle">dumpk3.csd</em></a>. Note that the example must be run from a directory for which the user has write access. </p> <div class="example"> <a id="idm281472940282696"></a> <p class="title"> <strong>Example 232. Example of the dumpk3 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="idm281472772802472"></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">;;;realtime audio out</span> <span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span> <span class="c1">; For Non-realtime ouput leave only the line below:</span> <span class="c1">; -o dumpk3.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> gi<span class="n">Sine</span> <span class="nb">ftgen</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="o">^</span><span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">1</span> <span class="kd">instr</span> <span class="nf">1</span> <span class="c1">;writes three control signals to a file</span> k<span class="n">freq</span> <span class="nb">randh</span> <span class="mi">100</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">500</span> <span class="c1">;generates one random number between 400 and 600 per second</span> k<span class="n">db</span> <span class="nb">randh</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">12</span> <span class="c1">;amplitudes in dB between -24 and 0</span> k<span class="n">pan</span> <span class="nb">randh</span> <span class="mf">.5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">.5</span> <span class="c1">;panning between 0 and 1</span> <span class="nb">dumpk3</span> k<span class="n">freq</span><span class="p">,</span> k<span class="n">db</span><span class="p">,</span> k<span class="n">pan</span><span class="p">,</span> <span class="s">"dumpk3.txt"</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">1</span> <span class="c1">;writes the control signals</span> <span class="nb">prints</span> <span class="s">"WRITING:</span><span class="se">\n</span><span class="s">"</span> <span class="nb">printks</span> <span class="s">"kfreq = %f, kdb = %f, kpan = %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> k<span class="n">freq</span><span class="p">,</span> k<span class="n">db</span><span class="p">,</span> k<span class="n">pan</span> <span class="c1">;prints them</span> <span class="kd">endin</span> <span class="kd">instr</span> <span class="nf">2</span> <span class="c1">;reads the file written by instr 1</span> k<span class="n">f</span><span class="p">,</span>k<span class="n">db</span><span class="p">,</span>k<span class="n">p</span> <span class="nb">readk3</span> <span class="s">"dumpk3.txt"</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">1</span> <span class="nb">prints</span> <span class="s">"READING:</span><span class="se">\n</span><span class="s">"</span> <span class="nb">printks</span> <span class="s">"kfreq = %f, kdb = %f, kpan = %f</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> k<span class="n">f</span><span class="p">,</span> k<span class="n">db</span><span class="p">,</span> k<span class="n">p</span> <span class="c1">;prints again</span> k<span class="n">db</span> <span class="nb">lineto</span> k<span class="n">db</span><span class="p">,</span> <span class="mf">.1</span> <span class="c1">;smoothing amp transition</span> k<span class="n">p</span> <span class="nb">lineto</span> k<span class="n">p</span><span class="p">,</span> <span class="mf">.1</span> <span class="c1">;smoothing pan transition</span> a<span class="n">out</span> <span class="nb">poscil</span> <span class="nb">ampdb</span><span class="p">(</span>k<span class="n">db</span><span class="p">),</span> k<span class="n">f</span><span class="p">,</span> gi<span class="n">Sine</span> a<span class="n">L</span><span class="p">,</span> a<span class="n">R</span> <span class="nb">pan2</span> a<span class="n">out</span><span class="p">,</span> k<span class="n">p</span> <span class="nb">outs</span> a<span class="n">L</span><span class="p">,</span> a<span class="n">R</span> <span class="kd">endin</span> <span class="nt"></CsInstruments></span> <span class="nt"><CsScore></span> <span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">5</span> <span class="nb">i</span> <span class="mi">2</span> <span class="mi">5</span> <span class="mi">5</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" /> The output should include lines like these: </p> <pre class="screen"> WRITING: kfreq = 473.352855, kdb = -15.197657, kpan = 0.366764 kfreq = 473.352855, kdb = -15.197657, kpan = 0.366764 kfreq = 441.426368, kdb = -19.026206, kpan = 0.207327 kfreq = 452.965140, kdb = -21.447486, kpan = 0.553270 kfreq = 585.106328, kdb = -11.903852, kpan = 0.815665 kfreq = 482.056760, kdb = -4.046744, kpan = 0.876537 READING: kfreq = 473.352900, kdb = -15.197700, kpan = 0.366800 kfreq = 473.352900, kdb = -15.197700, kpan = 0.366800 kfreq = 441.426400, kdb = -19.026200, kpan = 0.207300 kfreq = 452.965100, kdb = -21.447500, kpan = 0.553300 kfreq = 585.106300, kdb = -11.903900, kpan = 0.815700 kfreq = 482.056800, kdb = -4.046700, kpan = 0.876500 </pre> <p> </p> </div> <div class="refsect1"> <a id="idm281472940276344"></a> <h2>See Also</h2> <p> <a class="link" href="dumpk.html" title="dumpk"><em class="citetitle">dumpk</em></a>, <a class="link" href="dumpk2.html" title="dumpk2"><em class="citetitle">dumpk2</em></a>, <a class="link" href="dumpk4.html" title="dumpk4"><em class="citetitle">dumpk4</em></a>, <a class="link" href="readk.html" title="readk"><em class="citetitle">readk</em></a>, <a class="link" href="readk2.html" title="readk2"><em class="citetitle">readk2</em></a>, <a class="link" href="readk3.html" title="readk3"><em class="citetitle">readk3</em></a>, <a class="link" href="readk4.html" title="readk4"><em class="citetitle">readk4</em></a> </p> </div> <div class="refsect1"> <a id="idm281472940268504"></a> <h2>Credits</h2> <p>By: John ffitch and Barry L. Vercoe</p> <p>1999 or earlier</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="dumpk2.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="dumpk4.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">dumpk2 </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> dumpk4</td> </tr> </table> </div> </body> </html>