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<div class="refentry" title="GEN41">
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<h2>
<span class="refentrytitle">GEN41</span>
</h2>
<p>GEN41 —
Generates a random list of numerical pairs.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp78341048"></a>
<h2>Description</h2>
<p>
Generates a discrete random distribution function by giving a list of numerical pairs.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp78341744"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>f</strong></span> # time size -41 value1 prob1 value2 prob2 value3 prob3 ... valueN probN </pre>
</div>
<div class="refsect1" title="Performance">
<a id="idp78387824"></a>
<h2>Performance</h2>
<p>
The first number of each pair is a value, and the second is the probability of that value to be chosen by a random algorithm. Even if any number can be assigned to the probability element of each pair, it is suggested to give it a percent value, in order to make it clearer for the user.
</p>
<p>
This subroutine is designed to be used together with duserrnd and <a class="link" href="urd.html" title="urd"><em class="citetitle">urd</em></a> opcodes (see <a class="link" href="duserrnd.html" title="duserrnd">duserrnd</a> for more information).
</p>
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<div class="refsect1" title="Examples">
<a id="idp78389840"></a>
<h2>Examples</h2>
<p>
Here is an example of the GEN41 opcode. It uses the file <a class="ulink" href="examples/gen41.csd" target="_top"><em class="citetitle">gen41.csd</em></a>.
</p>
<div class="example">
<a id="idp78390816"></a>
<p class="title">
<strong>Example 1068. Example of the GEN41 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 RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o GEN41.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
<span class="oblock">instr</span> 1
k1 <span class="opc">duserrnd</span> 1
<span class="opc">printk</span> 0, k1
asig <span class="opc">poscil</span> .5, 220<span class="op">*</span>k1, 2
<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">f</span>1 0 -20 -41 2 .1 8 .9 <span class="comment">;choose 2 at 10% probability, 8 at 90%</span>
<span class="stamnt">f</span>2 0 8192 10 1
<span class="stamnt">i</span>1 0 2
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
Its output should include lines like these:
</p>
<pre class="screen">
i 1 time 0.00067: 8.00000
i 1 time 0.00133: 8.00000
i 1 time 0.00200: 8.00000
i 1 time 0.00267: 8.00000
i 1 time 0.00333: 2.00000
i 1 time 0.00400: 8.00000
i 1 time 0.00533: 8.00000
i 1 time 0.00600: 8.00000
..........
</pre>
<p>
<span>This is the diagram of the waveform of the GEN41 routine, as used in the example:</span>
</p>
<p>
</p>
<p>
</p>
<div class="mediaobject">
<img src="images/gen41.png" alt="f 1 0 -20 -41 2 .1 8 .9" />
<div class="caption">
<p>f 1 0 -20 -41 2 .1 8 .9</p>
</div>
</div>
<p>
</p>
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<div class="refsect1" title="Credits">
<a id="idp78396056"></a>
<h2>Credits</h2>
<p>Author: Gabriel Maldonado</p>
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