<?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>dumpk4</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="dumpk3.html" title="dumpk3" /> <link rel="next" href="duserrnd.html" title="duserrnd" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">dumpk4</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="dumpk3.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="duserrnd.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="dumpk4"></a> <div class="titlepage"></div> <a id="IndexDumpk4" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">dumpk4</span> </h2> <p>dumpk4 — Periodically writes four orchestra control-signal values to an external file. </p> </div> <div class="refsect1"> <a id="idm281472940263400"></a> <h2>Description</h2> <p> Periodically writes four orchestra control-signal values to a named external file in a specific format. </p> </div> <div class="refsect1"> <a id="idm281472940222088"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>dumpk4</strong></span> ksig1, ksig2, ksig3, ksig4, ifilname, iformat, iprd</pre> </div> <div class="refsect1"> <a id="idm281472940220040"></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="idm281472940210104"></a> <h2>Performance</h2> <p> <span class="emphasis"><em>ksig1, ksig2, ksig3, ksig4</em></span> -- control-rate signals </p> <p> This opcode allows four 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>dumpk4</em></span> opcodes in an instrument or orchestra but each must write to a different file. </p> </div> <div class="refsect1"> <a id="idm281472940207352"></a> <h2>Examples</h2> <p> Here is an example of the dumpk4 opcode. It uses the file <a class="ulink" href="examples/dumpk4.csd" target="_top"><em class="citetitle">dumpk4.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="idm281472940205400"></a> <p class="title"> <strong>Example 233. Example of the dumpk4 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="idm281472772699256"></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 dumpk4.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 four control signals to a file</span> k<span class="n">cf</span> <span class="nb">randh</span> <span class="mi">950</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">1050</span> <span class="c1">;generates one random number between 100 and 2000 per second</span> k<span class="n">q</span> <span class="nb">randh</span> <span class="mi">10</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">11</span> <span class="c1">;generates another random number between 1 and 21 per second</span> k<span class="n">db</span> <span class="nb">randh</span> <span class="mi">9</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">15</span> <span class="c1">;amplitudes in dB between -24 and -6</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">dumpk4</span> k<span class="n">cf</span><span class="p">,</span> k<span class="n">q</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">"dumpk4.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">"kcf = %f, kq = %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">cf</span><span class="p">,</span> k<span class="n">q</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">cf</span><span class="p">,</span>k<span class="n">q</span><span class="p">,</span>k<span class="n">db</span><span class="p">,</span>k<span class="n">p</span> <span class="nb">readk4</span> <span class="s">"dumpk4.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">"kcf = %f, kq = %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">cf</span><span class="p">,</span> k<span class="n">q</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 values</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">noise</span> <span class="nb">rand</span> <span class="nb">ampdb</span><span class="p">(</span>k<span class="n">db</span><span class="p">),</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span> k<span class="n">bw</span> <span class="o">=</span> k<span class="n">cf</span><span class="o">/</span>k<span class="n">q</span> <span class="c1">;bandwidth of resonant filter</span> a<span class="n">bp</span> <span class="nb">reson</span> a<span class="n">noise</span><span class="p">,</span> k<span class="n">cf</span><span class="p">,</span> k<span class="n">bw</span> a<span class="n">out</span> <span class="nb">balance</span> a<span class="n">bp</span><span class="p">,</span> a<span class="n">noise</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: kcf = 1122.469723, kq = 11.762839, kdb = -14.313445, kpan = 0.538142 kcf = 1122.469723, kq = 11.762839, kdb = -14.313445, kpan = 0.538142 kcf = 1148.638412, kq = 12.040490, kdb = -14.061868, kpan = 0.552205 kcf = 165.796855, kq = 18.523179, kdb = -15.816977, kpan = 0.901528 kcf = 147.729960, kq = 13.071911, kdb = -11.924531, kpan = 0.982518 kcf = 497.430113, kq = 13.605512, kdb = -21.586611, kpan = 0.179229 READING: WARNING: Seeding from current time 3308160476 kcf = 1122.469700, kq = 11.762800, kdb = -14.313400, kpan = 0.538100 kcf = 1122.469700, kq = 11.762800, kdb = -14.313400, kpan = 0.538100 kcf = 1148.638400, kq = 12.040500, kdb = -14.061900, kpan = 0.552200 kcf = 165.796900, kq = 18.523200, kdb = -15.817000, kpan = 0.901500 kcf = 147.730000, kq = 13.071900, kdb = -11.924500, kpan = 0.982500 kcf = 497.430100, kq = 13.605500, kdb = -21.586600, kpan = 0.179200 </pre> <p> </p> </div> <div class="refsect1"> <a id="idm281472940198232"></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="dumpk3.html" title="dumpk3"><em class="citetitle">dumpk3</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="idm281472940190392"></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="dumpk3.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="duserrnd.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">dumpk3 </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> duserrnd</td> </tr> </table> </div> </body> </html>