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<h2>
<span class="refentrytitle">ctrl14</span>
</h2>
<p>ctrl14 —
Allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range.
</p>
</div>
<div class="refsect1">
<a id="idm281472943756296"></a>
<h2>Description</h2>
<p>
Allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range.
</p>
</div>
<div class="refsect1">
<a id="idm281472943675432"></a>
<h2>Syntax</h2>
<pre class="synopsis">idest <span class="command"><strong>ctrl14</strong></span> ichan, ictlno1, ictlno2, imin, imax [, ifn]</pre>
<pre class="synopsis">kdest <span class="command"><strong>ctrl14</strong></span> ichan, ictlno1, ictlno2, kmin, kmax [, ifn]</pre>
</div>
<div class="refsect1">
<a id="idm281472943671816"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>idest</em></span> -- output signal
</p>
<p>
<span class="emphasis"><em>ichan</em></span> -- MIDI channel number (1-16)
</p>
<p>
<span class="emphasis"><em>ictln1o</em></span> -- most-significant byte controller number (0-127)
</p>
<p>
<span class="emphasis"><em>ictlno2</em></span> -- least-significant byte controller number (0-127)
</p>
<p>
<span class="emphasis"><em>imin</em></span> -- user-defined minimum floating-point value of output
</p>
<p>
<span class="emphasis"><em>imax</em></span> -- user-defined maximum floating-point value of output
</p>
<p>
<span class="emphasis"><em>ifn</em></span> (optional) -- table to be read when indexing is required. Table must be normalized. Output is scaled according to <span class="emphasis"><em>imax</em></span> and <span class="emphasis"><em>imin</em></span> val.
</p>
</div>
<div class="refsect1">
<a id="idm281472943664152"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kdest</em></span> -- output signal
</p>
<p>
<span class="emphasis"><em>kmin</em></span> -- user-defined minimum floating-point value of output
</p>
<p>
<span class="emphasis"><em>kmax</em></span> -- user-defined maximum floating-point value of output
</p>
<p>
<span class="emphasis"><em>ctrl14</em></span> (i- and k-rate 14 bit MIDI control) allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range. The minimum and maximum values can be varied at k-rate. It can use optional interpolated table indexing. It requires two MIDI controllers as input.
</p>
<p>
<span class="emphasis"><em>ctrl14</em></span> differs from <a class="link" href="midic14.html" title="midic14"><em class="citetitle">midic14</em></a> because it can be included in score-oriented instruments without Csound crashes. It needs the additional parameter <span class="emphasis"><em>ichan</em></span> containing the MIDI channel of the controller. MIDI channel is the same for all the controllers used in a single <span class="emphasis"><em>ctrl14</em></span> opcode.
</p>
</div>
<div class="refsect1">
<a id="idm281472943656792"></a>
<h2>Examples</h2>
<p>
Here is an example of the ctrl14 opcode. It uses the file <a class="ulink" href="examples/ctrl14.csd" target="_top"><em class="citetitle">ctrl14.csd</em></a>.
</p>
<div class="example">
<a id="idm281472943654936"></a>
<p class="title">
<strong>Example 175. Example of the ctrl14 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>
<div class="refsect1">
<a id="idm281472776650552"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac -M0 <span class="c1">;;;RT audio I/O with MIDI in</span>
<span class="c1">;-iadc ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="kd">instr</span> <span class="nf">1</span> <span class="c1">; expects MIDI controller input on channel 1</span>
<span class="c1">; run and move your midi controller to see result</span>
i<span class="n">max</span> <span class="o">=</span> <span class="mi">1</span>
i<span class="n">min</span> <span class="o">=</span> <span class="mi">0</span>
i<span class="n">chan</span> <span class="o">=</span> <span class="mi">1</span>
i<span class="n">ctlno</span> <span class="o">=</span> <span class="mi">7</span>
<span class="nb">initc14</span> <span class="mi">1</span><span class="p">,</span> i<span class="n">ctlno</span><span class="p">,</span> i<span class="n">ctlno</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span> <span class="c1">; start at max. volume</span>
k<span class="n">amp</span> <span class="nb">ctrl14</span> i<span class="n">chan</span><span class="p">,</span> i<span class="n">ctlno</span><span class="p">,</span> i<span class="n">ctlno</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> i<span class="n">min</span><span class="p">,</span> i<span class="n">max</span> <span class="c1">; controller 7</span>
<span class="nb">printk2</span> k<span class="n">amp</span>
a<span class="n">sig</span> <span class="nb">oscil</span> k<span class="n">amp</span><span class="p">,</span> <span class="mi">220</span><span class="p">,</span> <span class="mi">1</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="p">,</span> a<span class="n">sig</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">f</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">4096</span> <span class="mi">10</span> <span class="mi">1</span>
<span class="nb">i</span><span class="mi">1</span> <span class="mi">0</span> <span class="mi">20</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472943650744"></a>
<h2>See Also</h2>
<p>
<a class="link" href="ctrl7.html" title="ctrl7"><em class="citetitle">ctrl7</em></a>,
<a class="link" href="ctrl21.html" title="ctrl21"><em class="citetitle">ctrl21</em></a>,
<a class="link" href="initc7.html" title="initc7"><em class="citetitle">initc7</em></a>,
<a class="link" href="initc14.html" title="initc14"><em class="citetitle">initc14</em></a>,
<a class="link" href="initc21.html" title="initc21"><em class="citetitle">initc21</em></a>,
<a class="link" href="midic7.html" title="midic7"><em class="citetitle">midic7</em></a>,
<a class="link" href="midic14.html" title="midic14"><em class="citetitle">midic14</em></a>,
<a class="link" href="midic21.html" title="midic21"><em class="citetitle">midic21</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472943641976"></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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