<?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>notnum</title> <link rel="stylesheet" href="csound.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /> <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="noteondur2.html" title="noteondur2" /> <link rel="next" href="nreverb.html" title="nreverb" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">notnum</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="noteondur2.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="nreverb.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry" title="notnum"> <a id="notnum"></a> <div class="titlepage"></div> <a id="IndexNotnum" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">notnum</span> </h2> <p>notnum — Get a note number from a MIDI event. </p> </div> <div class="refsect1" title="Description"> <a id="id3048595"></a> <h2>Description</h2> <p> Get a note number from a MIDI event. </p> </div> <div class="refsect1" title="Syntax"> <a id="id3048339"></a> <h2>Syntax</h2> <pre class="synopsis">ival <span class="command"><strong>notnum</strong></span></pre> </div> <div class="refsect1" title="Performance"> <a id="id3048356"></a> <h2>Performance</h2> <p> Get the MIDI byte value (0 - 127) denoting the note number of the current event. </p> </div> <div class="refsect1" title="Examples"> <a id="id3048369"></a> <h2>Examples</h2> <p> Here is an example of the notnum opcode. It uses the file <a class="ulink" href="examples/notnum.csd" target="_top"><em class="citetitle">notnum.csd</em></a>. </p> <div class="example"> <a id="id3049246"></a> <p class="title"> <b>Example 389. Example of the notnum 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 MIDI in</span> -odac -iadc -d -M0 <span class="comment">;;;RT audio I/O with MIDI in</span> <span class="comment">; For Non-realtime ouput leave only the line below:</span> <span class="comment">; -o notnum.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> 1 <span class="comment">; Instrument #1.</span> <span class="oblock">instr</span> 1 i1 <span class="opc">notnum</span> <span class="opc">print</span> i1 <span class="oblock">endin</span> <span class="csdtag"></CsInstruments></span> <span class="csdtag"><CsScore></span> <span class="comment">; Play Instrument #1 for 12 seconds.</span> <span class="stamnt">i</span> 1 0 12 <span class="stamnt">e</span> <span class="csdtag"></CsScore></span> <span class="csdtag"></CsoundSynthesizer></span> </pre> </div> </div> <p><br class="example-break" /> Here is an example of the notnum opcode used to produce audio output. It uses the file <a class="ulink" href="examples/notnum_complex.csd" target="_top"><em class="citetitle">notnum_complex.csd</em></a> </p> <div class="example"> <a id="id3049289"></a> <p class="title"> <b>Example 390. Complex example of the notnum opcode.</b> </p> <div class="example-contents"> <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 MIDI in</span> -odac -iadc -d -M0 <span class="comment">;;;RT audio I/O with MIDI in</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> 10 <span class="ohdr">nchnls</span> <span class="op">=</span> 2 <span class="comment">; Set MIDI channel 1 to play instr 1.</span> <span class="ohdr">massign</span> 1, 1 <span class="oblock">instr</span> 1 <span class="comment">; Returns MIDI note number - an integer in range (0-127)</span> iNum <span class="opc">notnum</span> <span class="comment">; Convert MIDI note number to Hz</span> iHz <span class="op">=</span> (440.0<span class="op">*</span><span class="opc">exp</span>(<span class="opc">log</span>(2.0)<span class="op">*</span>((iNum)<span class="op">-</span>69.0)<span class="op">/</span>12.0)) <span class="comment">; Generate audio by indexing a table; fixed amplitude.</span> aosc <span class="opc">oscil</span> 10000, iHz, 1 <span class="comment">; Since there is no enveloping, there will be clicks.</span> <span class="opc">outs</span> aosc, aosc <span class="oblock">endin</span> <span class="csdtag"></CsInstruments></span> <span class="csdtag"><CsScore></span> <span class="comment">; Generate a Sine-wave to be indexed at audio rate</span> <span class="comment">; by the oscil opcode.</span> <span class="stamnt">f</span>1 0 16384 10 1 <span class="comment">; Keep the score "open" for 1 hour so that MIDI</span> <span class="comment">; notes can allocate new note events, arbitrarily.</span> <span class="stamnt">f</span>0 3600 <span class="stamnt">e</span> <span class="csdtag"></CsScore></span> <span class="csdtag"></CsoundSynthesizer></span> </pre> </div> </div> <p><br class="example-break" /> </p> </div> <div class="refsect1" title="See Also"> <a id="id3049306"></a> <h2>See Also</h2> <p> <a class="link" href="aftouch.html" title="aftouch"><em class="citetitle">aftouch</em></a>, <a class="link" href="ampmidi.html" title="ampmidi"><em class="citetitle">ampmidi</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="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="id3049405"></a> <h2>Credits</h2> <p> </p> <table border="0" summary="Simple list" class="simplelist"> <tr> <td>Author: Barry L. Vercoe - Mike Berry</td> </tr> <tr> <td>MIT - Mills</td> </tr> <tr> <td>May 1997</td> </tr> </table> <p> </p> <p>Examples written by Kevin Conder and David Akbari.</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="noteondur2.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="nreverb.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">noteondur2 </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> nreverb</td> </tr> </table> </div> </body> </html>