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# Saxofony.h

    00001 #ifndef STK_SAXOFONY_H
    00002 #define STK_SAXOFONY_H
    00003
    00004 #include "Instrmnt.h"
    00005 #include "DelayL.h"
    00006 #include "ReedTable.h"
    00007 #include "OneZero.h"
    00008 #include "Envelope.h"
    00009 #include "Noise.h"
    00010 #include "SineWave.h"
    00011
    00012 namespace stk {
    00013
    00014 /***************************************************/
    00049 /***************************************************/
    00050
    00051 class Saxofony : public Instrmnt
    00052 {
    00053  public:
    00055
    00058   Saxofony( StkFloat lowestFrequency );
    00059
    00061   ~Saxofony( void );
    00062
    00064   void clear( void );
    00065
    00067   void setFrequency( StkFloat frequency );
    00068
    00070   void setBlowPosition( StkFloat aPosition );
    00071
    00073   void startBlowing( StkFloat amplitude, StkFloat rate );
    00074
    00076   void stopBlowing( StkFloat rate );
    00077
    00079   void noteOn( StkFloat frequency, StkFloat amplitude );
    00080
    00082   void noteOff( StkFloat amplitude );
    00083
    00085   void controlChange( int number, StkFloat value );
    00086
    00088   StkFloat tick( unsigned int channel = 0 );
    00089
    00090  protected:
    00091
    00092   DelayL    delays_[2];
    00093   ReedTable reedTable_;
    00094   OneZero   filter_;
    00095   Envelope  envelope_;
    00096   Noise     noise_;
    00097   SineWave vibrato_;
    00098   unsigned long length_;
    00099   StkFloat outputGain_;
    00100   StkFloat noiseGain_;
    00101   StkFloat vibratoGain_;
    00102   StkFloat position_;
    00103
    00104 };
    00105
    00106 inline StkFloat Saxofony :: tick( unsigned int )
    00107 {
    00108   StkFloat pressureDiff;
    00109   StkFloat breathPressure;
    00110   StkFloat temp;
    00111
    00112   // Calculate the breath pressure (envelope + noise + vibrato)
    00113   breathPressure = envelope_.tick();
    00114   breathPressure += breathPressure * noiseGain_ * noise_.tick();
    00115   breathPressure += breathPressure * vibratoGain_ * vibrato_.tick();
    00116
    00117   temp = -0.95 * filter_.tick( delays_[0].lastOut() );
    00118   lastFrame_[0] = temp - delays_[1].lastOut();
    00119   pressureDiff = breathPressure - lastFrame_[0];
    00120   delays_[1].tick( temp );
    00121   delays_[0].tick( breathPressure - (pressureDiff * reedTable_.tick(pressureDiff)) - temp );
    00122
    00123   lastFrame_[0] *= outputGain_;
    00124   return lastFrame_[0];
    00125 }
    00126
    00127 } // stk namespace
    00128
    00129 #endif

The Synthesis ToolKit in C++ (STK)
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