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00001 #ifndef STK_MOOG_H 00002 #define STK_MOOG_H 00003 00004 #include "Sampler.h" 00005 #include "FormSwep.h" 00006 00007 namespace stk { 00008 00009 /***************************************************/ 00027 /***************************************************/ 00028 00029 class Moog : public Sampler 00030 { 00031 public: 00033 00036 Moog( void ); 00037 00039 ~Moog( void ); 00040 00042 void setFrequency( StkFloat frequency ); 00043 00045 void noteOn( StkFloat frequency, StkFloat amplitude ); 00046 00048 void setModulationSpeed( StkFloat mSpeed ) { loops_[1]->setFrequency( mSpeed ); }; 00049 00051 void setModulationDepth( StkFloat mDepth ) { modDepth_ = mDepth * 0.5; }; 00052 00054 void controlChange( int number, StkFloat value ); 00055 00057 StkFloat tick( unsigned int channel = 0 ); 00058 00059 protected: 00060 00061 FormSwep filters_[2]; 00062 StkFloat modDepth_; 00063 StkFloat filterQ_; 00064 StkFloat filterRate_; 00065 00066 }; 00067 00068 inline StkFloat Moog :: tick( unsigned int ) 00069 { 00070 StkFloat temp; 00071 00072 if ( modDepth_ != 0.0 ) { 00073 temp = loops_[1]->tick() * modDepth_; 00074 loops_[0]->setFrequency( baseFrequency_ * (1.0 + temp) ); 00075 } 00076 00077 temp = attackGain_ * attacks_[0]->tick(); 00078 temp += loopGain_ * loops_[0]->tick(); 00079 temp = filter_.tick( temp ); 00080 temp *= adsr_.tick(); 00081 temp = filters_[0].tick( temp ); 00082 lastFrame_[0] = filters_[1].tick( temp ); 00083 return lastFrame_[0] * 6.0; 00084 } 00085 00086 } // stk namespace 00087 00088 #endif
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