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<h2>
<span class="refentrytitle">ampmidi</span>
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<p>ampmidi —
Get the velocity of the current MIDI event.
</p>
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<div class="refsect1" title="Description">
<a id="idp13566184"></a>
<h2>Description</h2>
<p>
Get the velocity of the current MIDI event.
</p>
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<div class="refsect1" title="Syntax">
<a id="idp13566912"></a>
<h2>Syntax</h2>
<pre class="synopsis">iamp <span class="command"><strong>ampmidi</strong></span> iscal [, ifn]</pre>
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<div class="refsect1" title="Initialization">
<a id="idp13594272"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>iscal</em></span> -- i-time scaling factor
</p>
<p>
<span class="emphasis"><em>ifn</em></span> (optional, default=0) -- function table number of a normalized translation table, by which the incoming value is first interpreted. The default value is 0, denoting no translation.
</p>
</div>
<div class="refsect1" title="Performance">
<a id="idp13595976"></a>
<h2>Performance</h2>
<p>
Get the velocity of the current MIDI event, optionally pass it through a normalized translation table, and return an amplitude value in the range 0 - <span class="emphasis"><em>iscal</em></span>.
</p>
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<div class="refsect1" title="Examples">
<a id="idp13596984"></a>
<h2>Examples</h2>
<p>
Here is an example of the ampmidi opcode. It uses the file <a class="ulink" href="examples/ampmidi.csd" target="_top"><em class="citetitle">ampmidi.csd</em></a>.
</p>
<div class="example">
<a id="idp13597968"></a>
<p class="title">
<strong>Example 48. Example of the ampmidi 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">;;;RT 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 ampmidi.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 <span class="comment">;expects MIDI note inputs on channel 1</span>
iamp <span class="opc">ampmidi</span> 1 <span class="comment">; scale amplitude between 0 and 1</span>
asig <span class="opc">oscil</span> iamp, 220, 1
<span class="opc">print</span> iamp
<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="comment">;Dummy f-table for 1 minute</span>
<span class="stamnt">f</span> 0 60
<span class="comment">;sine wave.</span>
<span class="stamnt">f</span> 1 0 16384 10 1
<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="idp13600280"></a>
<h2>See Also</h2>
<p>
<a class="link" href="aftouch.html" title="aftouch"><em class="citetitle">aftouch</em></a>,
<a class="link" href="cpsmidi.html" title="cpsmidi"><em class="citetitle">cpsmidi</em></a>,
<a class="link" href="cpsmidib.html" title="cpsmidib"><em class="citetitle">cpsmidib</em></a>,
<a class="link" href="midictrl.html" title="midictrl"><em class="citetitle">midictrl</em></a>,
<a class="link" href="notnum.html" title="notnum"><em class="citetitle">notnum</em></a>,
<a class="link" href="octmidi.html" title="octmidi"><em class="citetitle">octmidi</em></a>,
<a class="link" href="octmidib.html" title="octmidib"><em class="citetitle">octmidib</em></a>,
<a class="link" href="pchbend.html" title="pchbend"><em class="citetitle">pchbend</em></a>,
<a class="link" href="pchmidi.html" title="pchmidi"><em class="citetitle">pchmidi</em></a>,
<a class="link" href="pchmidib.html" title="pchmidib"><em class="citetitle">pchmidib</em></a>,
<a class="link" href="veloc.html" title="veloc"><em class="citetitle">veloc</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp13606208"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Barry L. Vercoe - Mike Berry</td>
</tr>
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<td>MIT - Mills</td>
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<td>May 1997</td>
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