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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<div class="navpath"><a class="el" href="dir_d499f4756a454d8a02faa5ebe57d576f.html">include</a>
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<h1>Saxofony.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_SAXOFONY_H</span>
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<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_SAXOFONY_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="l00049"></a>00049 <span class="comment">/***************************************************/</span>
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<a name="l00050"></a>00050
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<a name="l00051"></a><a class="code" href="classstk_1_1Saxofony.html">00051</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Saxofony.html" title="STK faux conical bore reed instrument class.">Saxofony</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="l00052"></a>00052 {
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<a name="l00053"></a>00053 <span class="keyword">public</span>:
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<a name="l00055"></a>00055
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<a name="l00058"></a>00058 <a class="code" href="classstk_1_1Saxofony.html#15984d74213308e0d81d1ee32d99ee76" title="Class constructor, taking the lowest desired playing frequency.">Saxofony</a>( StkFloat lowestFrequency );
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<a name="l00059"></a>00059
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<a name="l00061"></a>00061 <a class="code" href="classstk_1_1Saxofony.html#1ff6a35de027e292c8a693aac314720d" title="Class destructor.">~Saxofony</a>( <span class="keywordtype">void</span> );
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<a name="l00062"></a>00062
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<a name="l00064"></a>00064 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#c74981cfa3b36ec1288eccab6aa80210" title="Reset and clear all internal state.">clear</a>( <span class="keywordtype">void</span> );
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<a name="l00065"></a>00065
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<a name="l00067"></a>00067 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#5844455497f50e4b64beb23f275ac8d1" title="Set instrument parameters for a particular frequency.">setFrequency</a>( StkFloat frequency );
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<a name="l00068"></a>00068
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<a name="l00070"></a>00070 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#eccfcfe10cef314cedf727ed5ba9d3d5" title="Set the &quot;blowing&quot; position between the air column terminations (0.0 - 1...">setBlowPosition</a>( StkFloat aPosition );
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<a name="l00071"></a>00071
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<a name="l00073"></a>00073 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#6e46b18ad2f992dfc3d948f966ec1bf2" 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="l00074"></a>00074
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<a name="l00076"></a>00076 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#e792c62c3bcf2fe756387c1f5cd61794" title="Decrease breath pressure with given rate of decrease.">stopBlowing</a>( StkFloat rate );
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<a name="l00077"></a>00077
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<a name="l00079"></a>00079 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#924eed4733c9ecfd0e4de44f69011ea5" title="Start a note with the given frequency and amplitude.">noteOn</a>( StkFloat frequency, StkFloat amplitude );
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<a name="l00080"></a>00080
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<a name="l00082"></a>00082 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#a930437a8044fc01dc906d79a482894c" title="Stop a note with the given amplitude (speed of decay).">noteOff</a>( StkFloat amplitude );
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<a name="l00083"></a>00083
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<a name="l00085"></a>00085 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Saxofony.html#38efe138bea7af7aeab3652bf0a305ff" 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="l00086"></a>00086
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<a name="l00088"></a>00088 StkFloat <a class="code" href="classstk_1_1Saxofony.html#955d2ea0b3236039851d19b681ca2b0f" 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="l00089"></a>00089
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<a name="l00090"></a>00090 <span class="keyword">protected</span>:
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<a name="l00091"></a>00091
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<a name="l00092"></a>00092 <a class="code" href="classstk_1_1DelayL.html" title="STK linear interpolating delay line class.">DelayL</a> delays_[2];
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<a name="l00093"></a>00093 <a class="code" href="classstk_1_1ReedTable.html" title="STK reed table class.">ReedTable</a> reedTable_;
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<a name="l00094"></a>00094 <a class="code" href="classstk_1_1OneZero.html" title="STK one-zero filter class.">OneZero</a> filter_;
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<a name="l00095"></a>00095 <a class="code" href="classstk_1_1Envelope.html" title="STK linear line envelope class.">Envelope</a> envelope_;
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<a name="l00096"></a>00096 <a class="code" href="classstk_1_1Noise.html" title="STK noise generator.">Noise</a> noise_;
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<a name="l00097"></a>00097 <a class="code" href="classstk_1_1SineWave.html" title="STK sinusoid oscillator class.">SineWave</a> vibrato_;
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<a name="l00098"></a>00098 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> length_;
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<a name="l00099"></a>00099 StkFloat outputGain_;
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<a name="l00100"></a>00100 StkFloat noiseGain_;
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<a name="l00101"></a>00101 StkFloat vibratoGain_;
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<a name="l00102"></a>00102 StkFloat position_;
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<a name="l00103"></a>00103
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<a name="l00104"></a>00104 };
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<a name="l00105"></a>00105
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<a name="l00106"></a><a class="code" href="classstk_1_1Saxofony.html#955d2ea0b3236039851d19b681ca2b0f">00106</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Saxofony.html#955d2ea0b3236039851d19b681ca2b0f" title="Compute and return one output sample.">Saxofony :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00107"></a>00107 {
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<a name="l00108"></a>00108 StkFloat pressureDiff;
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<a name="l00109"></a>00109 StkFloat breathPressure;
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<a name="l00110"></a>00110 StkFloat temp;
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<a name="l00111"></a>00111
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<a name="l00112"></a>00112 <span class="comment">// Calculate the breath pressure (envelope + noise + vibrato)</span>
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<a name="l00113"></a>00113 breathPressure = envelope_.<a class="code" href="classstk_1_1Envelope.html#8de91b9caf10a03f52bd2247648c4601" title="Compute and return one output sample.">tick</a>();
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<a name="l00114"></a>00114 breathPressure += breathPressure * noiseGain_ * noise_.<a class="code" href="classstk_1_1Noise.html#8ac40f69475eb744e803d557e8438a6d" title="Compute and return one output sample.">tick</a>();
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<a name="l00115"></a>00115 breathPressure += breathPressure * vibratoGain_ * vibrato_.<a class="code" href="classstk_1_1SineWave.html#31a55627bf8064919b5e063059260eda" title="Compute and return one output sample.">tick</a>();
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<a name="l00116"></a>00116
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<a name="l00117"></a>00117 temp = -0.95 * filter_.<a class="code" href="classstk_1_1OneZero.html#9f52fa395257b15cb7351c6ccb2199da" title="Input one sample to the filter and return one output.">tick</a>( delays_[0].<a class="code" href="classstk_1_1Instrmnt.html#aa6bd5e4a5be7f9b0be967daf012872e" title="Return the specified channel value of the last computed frame.">lastOut</a>() );
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<a name="l00118"></a>00118 lastFrame_[0] = temp - delays_[1].<a class="code" href="classstk_1_1DelayL.html#16810ca38fab79276bb8ec51447623a9" title="Return the last computed output value.">lastOut</a>();
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<a name="l00119"></a>00119 pressureDiff = breathPressure - lastFrame_[0];
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<a name="l00120"></a>00120 delays_[1].<a class="code" href="classstk_1_1DelayL.html#1d01bbaf40cc20a0b70241bb8072da7f" title="Input one sample to the filter and return one output.">tick</a>( temp );
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<a name="l00121"></a>00121 delays_[0].<a class="code" href="classstk_1_1DelayL.html#1d01bbaf40cc20a0b70241bb8072da7f" title="Input one sample to the filter and return one output.">tick</a>( breathPressure - (pressureDiff * reedTable_.<a class="code" href="classstk_1_1ReedTable.html#3c1607ed5712e2ab010d8c5e55e431f2" title="Take one sample input and map to one sample of output.">tick</a>(pressureDiff)) - temp );
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<a name="l00122"></a>00122
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<a name="l00123"></a>00123 lastFrame_[0] *= outputGain_;
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<a name="l00124"></a>00124 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00125"></a>00125 }
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<a name="l00126"></a>00126
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<a name="l00127"></a>00127 } <span class="comment">// stk namespace</span>
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<a name="l00128"></a>00128
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<a name="l00129"></a>00129 <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>©1995-2009 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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