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00001 #ifndef STK_PERCFLUT_H 00002 #define STK_PERCFLUT_H 00003 00004 #include "FM.h" 00005 00006 namespace stk { 00007 00008 /***************************************************/ 00034 /***************************************************/ 00035 00036 class PercFlut : public FM 00037 { 00038 public: 00040 00043 PercFlut( void ); 00044 00046 ~PercFlut( void ); 00047 00049 void setFrequency( StkFloat frequency ); 00050 00052 void noteOn( StkFloat frequency, StkFloat amplitude ); 00053 00055 StkFloat tick( unsigned int channel = 0 ); 00056 00057 protected: 00058 00059 }; 00060 00061 inline StkFloat PercFlut :: tick( unsigned int ) 00062 { 00063 register StkFloat temp; 00064 00065 temp = vibrato_.tick() * modDepth_ * 0.2; 00066 waves_[0]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[0]); 00067 waves_[1]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[1]); 00068 waves_[2]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[2]); 00069 waves_[3]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[3]); 00070 00071 waves_[3]->addPhaseOffset( twozero_.lastOut() ); 00072 temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick(); 00073 00074 twozero_.tick(temp); 00075 waves_[2]->addPhaseOffset( temp ); 00076 temp = (1.0 - (control2_ * 0.5)) * gains_[2] * adsr_[2]->tick() * waves_[2]->tick(); 00077 00078 temp += control2_ * 0.5 * gains_[1] * adsr_[1]->tick() * waves_[1]->tick(); 00079 temp = temp * control1_; 00080 00081 waves_[0]->addPhaseOffset(temp); 00082 temp = gains_[0] * adsr_[0]->tick() * waves_[0]->tick(); 00083 00084 lastFrame_[0] = temp * 0.5; 00085 return lastFrame_[0]; 00086 } 00087 00088 } // stk namespace 00089 00090 #endif
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