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<div class="navpath"><a class="el" href="dir_ca1e4533604ab7cb0cdaaff730a9c38f.html">include</a>
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<h1>Clarinet.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_CLARINET_H</span>
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<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_CLARINET_H</span>
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<a name="l00003"></a>00003 <span class="preprocessor"></span>
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<a name="l00004"></a>00004 <span class="preprocessor">#include "Instrmnt.h"</span>
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<a name="l00005"></a>00005 <span class="preprocessor">#include "DelayL.h"</span>
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<a name="l00006"></a>00006 <span class="preprocessor">#include "ReedTable.h"</span>
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<a name="l00007"></a>00007 <span class="preprocessor">#include "OneZero.h"</span>
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<a name="l00008"></a>00008 <span class="preprocessor">#include "Envelope.h"</span>
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<a name="l00009"></a>00009 <span class="preprocessor">#include "Noise.h"</span>
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<a name="l00010"></a>00010 <span class="preprocessor">#include "SineWave.h"</span>
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<a name="l00011"></a>00011
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<a name="l00012"></a>00012 <span class="keyword">namespace </span>stk {
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<a name="l00013"></a>00013
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<a name="l00014"></a>00014 <span class="comment">/***************************************************/</span>
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<a name="l00036"></a>00036 <span class="comment">/***************************************************/</span>
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<a name="l00037"></a>00037
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<a name="l00038"></a><a class="code" href="classstk_1_1Clarinet.html">00038</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Clarinet.html" title="STK clarinet physical model class.">Clarinet</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a>
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<a name="l00039"></a>00039 {
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<a name="l00040"></a>00040 <span class="keyword">public</span>:
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<a name="l00042"></a>00042
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<a name="l00045"></a>00045 <a class="code" href="classstk_1_1Clarinet.html#a82e32a30e6d9664ac9fe748070bec23c" title="Class constructor, taking the lowest desired playing frequency.">Clarinet</a>( StkFloat lowestFrequency );
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<a name="l00046"></a>00046
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<a name="l00048"></a>00048 <a class="code" href="classstk_1_1Clarinet.html#a5166db9f4cf180fa189ba2e135affe34" title="Class destructor.">~Clarinet</a>( <span class="keywordtype">void</span> );
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<a name="l00049"></a>00049
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<a name="l00051"></a>00051 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#a7eae4377eb4178067c2dba704032a2d1" title="Reset and clear all internal state.">clear</a>( <span class="keywordtype">void</span> );
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<a name="l00052"></a>00052
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<a name="l00054"></a>00054 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#af7c1cda6af97908c9b81b1be0c2a896d" title="Set instrument parameters for a particular frequency.">setFrequency</a>( StkFloat frequency );
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<a name="l00055"></a>00055
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<a name="l00057"></a>00057 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#a0e4d016135c3ee291f4d74e9b030caee" title="Apply breath pressure to instrument with given amplitude and rate of increase.">startBlowing</a>( StkFloat amplitude, StkFloat rate );
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<a name="l00058"></a>00058
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<a name="l00060"></a>00060 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#ae33627365f66f30c3685dc72cd7fadce" title="Decrease breath pressure with given rate of decrease.">stopBlowing</a>( StkFloat rate );
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<a name="l00061"></a>00061
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<a name="l00063"></a>00063 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#a35f9158176c1b654c74bdf6f1296df67" title="Start a note with the given frequency and amplitude.">noteOn</a>( StkFloat frequency, StkFloat amplitude );
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<a name="l00064"></a>00064
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<a name="l00066"></a>00066 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#a501413064397d1650e18edac92a98b2e" title="Stop a note with the given amplitude (speed of decay).">noteOff</a>( StkFloat amplitude );
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<a name="l00067"></a>00067
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<a name="l00069"></a>00069 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Clarinet.html#a63582205ab940101f5f9419fc717ff78" title="Perform the control change specified by number and value (0.0 - 128.0).">controlChange</a>( <span class="keywordtype">int</span> number, StkFloat value );
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<a name="l00070"></a>00070
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<a name="l00072"></a>00072 StkFloat <a class="code" href="classstk_1_1Clarinet.html#a4cd08bca954ad434bc636eda957ca8d5" title="Compute and return one output sample.">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074 <span class="keyword">protected</span>:
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076 <a class="code" href="classstk_1_1DelayL.html" title="STK linear interpolating delay line class.">DelayL</a> delayLine_;
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<a name="l00077"></a>00077 <a class="code" href="classstk_1_1ReedTable.html" title="STK reed table class.">ReedTable</a> reedTable_;
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<a name="l00078"></a>00078 <a class="code" href="classstk_1_1OneZero.html" title="STK one-zero filter class.">OneZero</a> filter_;
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<a name="l00079"></a>00079 <a class="code" href="classstk_1_1Envelope.html" title="STK linear line envelope class.">Envelope</a> envelope_;
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<a name="l00080"></a>00080 <a class="code" href="classstk_1_1Noise.html" title="STK noise generator.">Noise</a> noise_;
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<a name="l00081"></a>00081 <a class="code" href="classstk_1_1SineWave.html" title="STK sinusoid oscillator class.">SineWave</a> vibrato_;
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<a name="l00082"></a>00082 <span class="keywordtype">long</span> length_;
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<a name="l00083"></a>00083 StkFloat outputGain_;
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<a name="l00084"></a>00084 StkFloat noiseGain_;
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<a name="l00085"></a>00085 StkFloat vibratoGain_;
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 };
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<a name="l00088"></a>00088
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<a name="l00089"></a><a class="code" href="classstk_1_1Clarinet.html#a4cd08bca954ad434bc636eda957ca8d5">00089</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Clarinet.html#a4cd08bca954ad434bc636eda957ca8d5" title="Compute and return one output sample.">Clarinet :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00090"></a>00090 {
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<a name="l00091"></a>00091 StkFloat pressureDiff;
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<a name="l00092"></a>00092 StkFloat breathPressure;
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<a name="l00093"></a>00093
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<a name="l00094"></a>00094 <span class="comment">// Calculate the breath pressure (envelope + noise + vibrato)</span>
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<a name="l00095"></a>00095 breathPressure = envelope_.<a class="code" href="classstk_1_1Envelope.html#a8de91b9caf10a03f52bd2247648c4601" title="Compute and return one output sample.">tick</a>();
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<a name="l00096"></a>00096 breathPressure += breathPressure * noiseGain_ * noise_.<a class="code" href="classstk_1_1Noise.html#a8ac40f69475eb744e803d557e8438a6d" title="Compute and return one output sample.">tick</a>();
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<a name="l00097"></a>00097 breathPressure += breathPressure * vibratoGain_ * vibrato_.<a class="code" href="classstk_1_1SineWave.html#a31a55627bf8064919b5e063059260eda" title="Compute and return one output sample.">tick</a>();
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<a name="l00098"></a>00098
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<a name="l00099"></a>00099 <span class="comment">// Perform commuted loss filtering.</span>
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<a name="l00100"></a>00100 pressureDiff = -0.95 * filter_.<a class="code" href="classstk_1_1OneZero.html#a9f52fa395257b15cb7351c6ccb2199da" title="Input one sample to the filter and return one output.">tick</a>( delayLine_.<a class="code" href="classstk_1_1DelayL.html#a16810ca38fab79276bb8ec51447623a9" title="Return the last computed output value.">lastOut</a>() );
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<a name="l00101"></a>00101
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<a name="l00102"></a>00102 <span class="comment">// Calculate pressure difference of reflected and mouthpiece pressures.</span>
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<a name="l00103"></a>00103 pressureDiff = pressureDiff - breathPressure;
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<a name="l00104"></a>00104
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<a name="l00105"></a>00105 <span class="comment">// Perform non-linear scattering using pressure difference in reed function.</span>
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<a name="l00106"></a>00106 lastFrame_[0] = delayLine_.<a class="code" href="classstk_1_1DelayL.html#a1d01bbaf40cc20a0b70241bb8072da7f" title="Input one sample to the filter and return one output.">tick</a>(breathPressure + pressureDiff * reedTable_.<a class="code" href="classstk_1_1ReedTable.html#a3c1607ed5712e2ab010d8c5e55e431f2" title="Take one sample input and map to one sample of output.">tick</a>(pressureDiff));
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<a name="l00107"></a>00107
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<a name="l00108"></a>00108 <span class="comment">// Apply output gain.</span>
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<a name="l00109"></a>00109 lastFrame_[0] *= outputGain_;
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<a name="l00110"></a>00110
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<a name="l00111"></a>00111 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00112"></a>00112 }
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<a name="l00113"></a>00113
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<a name="l00114"></a>00114 } <span class="comment">// stk namespace</span>
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<a name="l00115"></a>00115
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<a name="l00116"></a>00116 <span class="preprocessor">#endif</span>
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</pre></div></div>
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<table>
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<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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<tr><td>©1995-2010 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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