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<div class="refentry" title="outkc">
<a id="outkc"></a>
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<a id="IndexOutkc" class="indexterm"></a>
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<h2>
<span class="refentrytitle">outkc</span>
</h2>
<p>outkc —
Sends MIDI controller messages at k-rate.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp34483432"></a>
<h2>Description</h2>
<p>
Sends MIDI controller messages at k-rate.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp34470224"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>outkc</strong></span> kchn, knum, kvalue, kmin, kmax</pre>
</div>
<div class="refsect1" title="Performance">
<a id="idp34471256"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kchn</em></span> -- MIDI channel number (1-16)
</p>
<p>
<span class="emphasis"><em>knum</em></span> -- controller number (0-127 for example 1 = ModWheel; 2 = BreathControl etc.)
</p>
<p>
<span class="emphasis"><em>kvalue</em></span> -- floating point value
</p>
<p>
<span class="emphasis"><em>kmin</em></span> -- minimum floating point value (converted in MIDI integer value 0)
</p>
<p>
<span class="emphasis"><em>kmax</em></span> -- maximum floating point value (converted in MIDI integer value 127 (7 bit))
</p>
<p>
<span class="emphasis"><em>outkc</em></span> (k-rate MIDI controller output) sends controller messages to MIDI OUT device. It works only with MIDI instruments which recognize them. It can drive a different value of a parameter for each note currently active.
</p>
<p>
It can scale the k-value floating-point argument according to the <span class="emphasis"><em>kmin</em></span> and <span class="emphasis"><em>kmax</em></span> values. For example: set <span class="emphasis"><em>kmin</em></span> = 1.0 and <span class="emphasis"><em>kmax</em></span> = 2.0.
When the <span class="emphasis"><em>kvalue</em></span> argument receives a 2.0 value, the opcode will send a 127 value to the MIDI OUT device. When the <span class="emphasis"><em>kvalue</em></span> argument receives a 1.0 value, it will send a 0 value. k-rate opcodes send a message each time the MIDI converted value of argument <span class="emphasis"><em>kvalue</em></span> changes.
</p>
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<div class="refsect1" title="Examples">
<a id="idp34526920"></a>
<h2>Examples</h2>
<p>
Here is an example of the outkc opcode. It uses the file <a class="ulink" href="examples/outkc.csd" target="_top"><em class="citetitle">outkc.csd</em></a>.
</p>
<div class="example">
<a id="idp34527888"></a>
<p class="title">
<strong>Example 545. Example of the outkc 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 -Q1 -M0 <span class="comment">;;;realtime audio out and midi in and 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 outkc.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="oblock">instr</span> 1
ikey <span class="opc">notnum</span>
ivel <span class="opc">veloc</span>
kcut <span class="opc">linseg</span> 100, .5, 20 <span class="comment">;vary controller in .5 second</span>
kbrt <span class="op">=</span> <span class="opc">int</span>(kcut) <span class="comment">;whole numbers only</span>
<span class="opc">outkc</span> 1, 74, kbrt, 0, 127 <span class="comment">;controller 74 (= brightness)</span>
<span class="opc">midion</span> 1, ikey, ivel <span class="comment">;of external synth</span>
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">f</span>0 30 <span class="comment">;runs 30 seconds</span>
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
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</div>
<p><br class="example-break" />
</p>
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<div class="refsect1" title="See Also">
<a id="idp34530160"></a>
<h2>See Also</h2>
<p>
<a class="link" href="outiat.html" title="outiat"><em class="citetitle">outiat</em></a>,
<a class="link" href="outic14.html" title="outic14"><em class="citetitle">outic14</em></a>,
<a class="link" href="outic.html" title="outic"><em class="citetitle">outic</em></a>,
<a class="link" href="outipat.html" title="outipat"><em class="citetitle">outipat</em></a>,
<a class="link" href="outipb.html" title="outipb"><em class="citetitle">outipb</em></a>,
<a class="link" href="outipc.html" title="outipc"><em class="citetitle">outipc</em></a>,
<a class="link" href="outkat.html" title="outkat"><em class="citetitle">outkat</em></a>,
<a class="link" href="outkc14.html" title="outkc14"><em class="citetitle">outkc14</em></a>,
<a class="link" href="outkpat.html" title="outkpat"><em class="citetitle">outkpat</em></a>,
<a class="link" href="outkpb.html" title="outkpb"><em class="citetitle">outkpb</em></a>,
<a class="link" href="outkpc.html" title="outkpc"><em class="citetitle">outkpc</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp34535976"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Gabriel Maldonado</td>
</tr>
<tr>
<td>Italy</td>
</tr>
</table>
<p>
</p>
<p>New in Csound version 3.47</p>
<p>Thanks goes to Rasmus Ekman for pointing out the correct MIDI channel and controller number ranges.</p>
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