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<div class="refentry" title="jitter">
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<h2>
<span class="refentrytitle">jitter</span>
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<p>jitter —
Generates a segmented line whose segments are randomly generated.
</p>
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<div class="refsect1" title="Description">
<a id="id2973669"></a>
<h2>Description</h2>
<p>
Generates a segmented line whose segments are randomly generated.
</p>
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<div class="refsect1" title="Syntax">
<a id="id2973689"></a>
<h2>Syntax</h2>
<pre class="synopsis">kout <span class="command"><strong>jitter</strong></span> kamp, kcpsMin, kcpsMax</pre>
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<div class="refsect1" title="Performance">
<a id="id2973708"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kamp</em></span> -- Amplitude of jitter deviation
</p>
<p>
<span class="emphasis"><em>kcpsMin</em></span> -- Minimum speed of random frequency variations (expressed in cps)
</p>
<p>
<span class="emphasis"><em>kcpsMax</em></span> -- Maximum speed of random frequency variations (expressed in cps)
</p>
<p>
<span class="emphasis"><em>jitter</em></span> generates a segmented line whose segments are randomly generated inside the +kamp and -kamp interval. Duration of each segment is a random value generated according to kcpsmin and kcpsmax values.
</p>
<p>
<span class="emphasis"><em>jitter</em></span> can be used to make more natural and <span class="quote">“<span class="quote">analog-sounding</span>”</span> some static, dull sound. For best results, it is suggested to keep its amplitude moderate.
</p>
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<div class="refsect1" title="Examples">
<a id="id2974557"></a>
<h2>Examples</h2>
<p>
Here is an example of the jitter opcode. It uses the file <a class="ulink" href="examples/jitter.csd" target="_top"><em class="citetitle">jitter.csd</em></a>.
</p>
<div class="example">
<a id="id2974573"></a>
<p class="title">
<b>Example 328. Example of the jitter opcode.</b>
</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>
<span class="comment">; Audio out Audio in No messages</span>
-odac -iadc -d <span class="comment">;;;RT audio I/O</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o jitter.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="comment">; Initialize the global variables.</span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">kr</span> <span class="op">=</span> 4410
<span class="ohdr">ksmps</span> <span class="op">=</span> 10
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="comment">; Instrument #1 -- plain instrument.</span>
<span class="oblock">instr</span> 1
aplain <span class="opc">vco</span> 20000, 220, 2, 0.83
<span class="opc">outs</span> aplain, aplain
<span class="oblock">endin</span>
<span class="comment">; Instrument #2 -- instrument with jitter.</span>
<span class="oblock">instr</span> 2
<span class="comment">; Create a signal modulated the jitter opcode.</span>
kamp <span class="opc">init</span> 2
kcpsmin <span class="opc">init</span> 4
kcpsmax <span class="opc">init</span> 6
kj <span class="opc">jitter</span> kamp, kcpsmin, kcpsmax
aplain <span class="opc">vco</span> 20000, 220, 2, 0.83
ajitter <span class="opc">vco</span> 20000, 220<span class="op">+</span>kj, 2, 0.83
<span class="opc">outs</span> aplain, ajitter
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="comment">; Table #1, a sine wave.</span>
<span class="stamnt">f</span> 1 0 16384 10 1
<span class="comment">; Play Instrument #1 for 3 seconds.</span>
<span class="stamnt">i</span> 1 0 3
<span class="comment">; Play Instrument #2 for 3 seconds.</span>
<span class="stamnt">i</span> 2 3 3
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
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<p><br class="example-break" />
</p>
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<div class="refsect1" title="See Also">
<a id="id2974611"></a>
<h2>See Also</h2>
<p>
<a class="link" href="jitter2.html" title="jitter2"><em class="citetitle">jitter2</em></a>,
<a class="link" href="vibr.html" title="vibr"><em class="citetitle">vibr</em></a>,
<a class="link" href="vibrato.html" title="vibrato"><em class="citetitle">vibrato</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="id2974645"></a>
<h2>Credits</h2>
<p>Author: Gabriel Maldonado</p>
<p>Example written by Kevin Conder.</p>
<p>New in Version 4.15</p>
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