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Wurley.h

00001 #ifndef STK_WURLEY_H
00002 #define STK_WURLEY_H
00003 
00004 #include "FM.h"
00005 
00006 namespace stk {
00007 
00008 /***************************************************/
00038 /***************************************************/
00039 
00040 class Wurley : public FM
00041 {
00042  public:
00044 
00047   Wurley( void );
00048 
00050   ~Wurley( void );
00051 
00053   void setFrequency( StkFloat frequency );
00054 
00056   void noteOn( StkFloat frequency, StkFloat amplitude );
00057 
00059   StkFloat tick( unsigned int channel = 0 );
00060 
00061  protected:
00062 
00063 };
00064 
00065 inline StkFloat Wurley :: tick( unsigned int )
00066 {
00067   StkFloat temp, temp2;
00068 
00069   temp = gains_[1] * adsr_[1]->tick() * waves_[1]->tick();
00070   temp = temp * control1_;
00071 
00072   waves_[0]->addPhaseOffset( temp );
00073   waves_[3]->addPhaseOffset( twozero_.lastOut() );
00074   temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
00075   twozero_.tick(temp);
00076 
00077   waves_[2]->addPhaseOffset( temp );
00078   temp = ( 1.0 - (control2_ * 0.5)) * gains_[0] * adsr_[0]->tick() * waves_[0]->tick();
00079   temp += control2_ * 0.5 * gains_[2] * adsr_[2]->tick() * waves_[2]->tick();
00080 
00081   // Calculate amplitude modulation and apply it to output.
00082   temp2 = vibrato_.tick() * modDepth_;
00083   temp = temp * (1.0 + temp2);
00084     
00085   lastFrame_[0] = temp * 0.5;
00086   return lastFrame_[0];
00087 }
00088 
00089 } // stk namespace
00090 
00091 #endif

The Synthesis ToolKit in C++ (STK)
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