<?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>dumpk2</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="dumpk.html" title="dumpk" />
<link rel="next" href="dumpk3.html" title="dumpk3" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">dumpk2</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="dumpk.html">Prev</a> </td>
<th width="60%" align="center">Orchestra Opcodes and Operators</th>
<td width="20%" align="right"> <a accesskey="n" href="dumpk3.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="refentry" title="dumpk2">
<a id="dumpk2"></a>
<div class="titlepage"></div>
<a id="IndexDumpk2" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">dumpk2</span>
</h2>
<p>dumpk2 —
Periodically writes two orchestra control-signal values to an external file.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp18815912"></a>
<h2>Description</h2>
<p>
Periodically writes two orchestra control-signal values to a named external file in a specific format.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp18816624"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>dumpk2</strong></span> ksig1, ksig2, ifilname, iformat, iprd</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp18819896"></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" 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" title="Performance">
<a id="idp18876480"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>ksig1, ksig2</em></span> -- control-rate signals.
</p>
<p>
This opcode allows two 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>dumpk2</em></span> opcodes in an instrument or orchestra but each must write to a different file.
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp18878048"></a>
<h2>Examples</h2>
<p>
Here is an example of the dumpk2 opcode. It uses the file <a class="ulink" href="examples/dumpk2.csd" target="_top"><em class="citetitle">dumpk2.csd</em></a>.
</p>
<div class="example">
<a id="idp18879000"></a>
<p class="title">
<strong>Example 195. Example of the dumpk2 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 dumpk2.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
giSine <span class="ohdr">ftgen</span> 0, 0, 2^10, 10, 1
<span class="oblock">instr</span> 1 <span class="comment">;writes two control signals to a file</span>
kfreq <span class="opc">randh</span> 100, 1, 2, 1, 500 <span class="comment">;generates one random number between 400 and 600 per second</span>
kdb <span class="opc">randh</span> 12, 1, 2, 1, <span class="op">-</span>12 <span class="comment">;amplitudes in dB between -24 and 0</span>
<span class="opc">dumpk2</span> kfreq, kdb, "dumpk2.txt", 8, 1 <span class="comment">;writes the control signals</span>
<span class="opc">prints</span> "WRITING<span class="op">:</span>\n"
<span class="opc">printks</span> "kfreq <span class="op">=</span> <span class="op">%</span>f, kdb <span class="op">=</span> <span class="op">%</span>f\n", 1, kfreq, kdb <span class="comment">;prints them</span>
<span class="oblock">endin</span>
<span class="oblock">instr</span> 2 <span class="comment">;reads the file written by instr 1</span>
kf,kdb <span class="opc">readk2</span> "dumpk2.txt", 8, 1
<span class="opc">prints</span> "READING<span class="op">:</span>\n"
<span class="opc">printks</span> "kfreq <span class="op">=</span> <span class="op">%</span>f, kdb <span class="op">=</span> <span class="op">%</span>f\n", 1, kf, kdb <span class="comment">;prints again</span>
kdb <span class="opc">lineto</span> kdb, .1 <span class="comment">;smoothing amp transition</span>
aout <span class="opc">poscil</span> <span class="opc">ampdb</span>(kdb), kf, giSine
<span class="opc">outs</span> aout, aout
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 5
<span class="stamnt">i</span> 2 5 5
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
The output should include lines like these:
</p>
<pre class="screen">
kfreq = 429.202551, kdb = -20.495694
kfreq = 429.202551, kdb = -20.495694
kfreq = 407.275258, kdb = -23.123776
kfreq = 475.264472, kdb = -9.300846
kfreq = 569.979181, kdb = -7.315527
kfreq = 440.103457, kdb = -0.058331
kfreq = 429.202600, kdb = -20.495700
kfreq = 429.202600, kdb = -20.495700
kfreq = 407.275300, kdb = -23.123800
kfreq = 475.264500, kdb = -9.300800
kfreq = 569.979200, kdb = -7.315500
kfreq = 440.103500, kdb = -0.058300
</pre>
<p>
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp18882104"></a>
<h2>See Also</h2>
<p>
<a class="link" href="dumpk.html" title="dumpk"><em class="citetitle">dumpk</em></a>,
<a class="link" href="dumpk3.html" title="dumpk3"><em class="citetitle">dumpk3</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" title="Credits">
<a id="idp18886024"></a>
<h2>Credits</h2>
<p>By: John ffitch and Barry 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="dumpk.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="dumpk3.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">dumpk </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> dumpk3</td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mageia
>
5
>
x86_64
>
media
>
core-release
>
by-pkgid
>
b707d9a4ee443103660a75ccb6e51334
>
files
>
556
