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00001 #ifndef STK_TUBEBELL_H 00002 #define STK_TUBEBELL_H 00003 00004 #include "FM.h" 00005 00006 namespace stk { 00007 00008 /***************************************************/ 00038 /***************************************************/ 00039 00040 class TubeBell : public FM 00041 { 00042 public: 00044 00047 TubeBell( void ); 00048 00050 ~TubeBell( void ); 00051 00053 void noteOn( StkFloat frequency, StkFloat amplitude ); 00054 00056 StkFloat tick( unsigned int channel = 0 ); 00057 00058 protected: 00059 00060 }; 00061 00062 inline StkFloat TubeBell :: tick( unsigned int ) 00063 { 00064 StkFloat temp, temp2; 00065 00066 temp = gains_[1] * adsr_[1]->tick() * waves_[1]->tick(); 00067 temp = temp * control1_; 00068 00069 waves_[0]->addPhaseOffset( temp ); 00070 waves_[3]->addPhaseOffset( twozero_.lastOut() ); 00071 temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick(); 00072 twozero_.tick( temp ); 00073 00074 waves_[2]->addPhaseOffset( temp ); 00075 temp = ( 1.0 - (control2_ * 0.5)) * gains_[0] * adsr_[0]->tick() * waves_[0]->tick(); 00076 temp += control2_ * 0.5 * gains_[2] * adsr_[2]->tick() * waves_[2]->tick(); 00077 00078 // Calculate amplitude modulation and apply it to output. 00079 temp2 = vibrato_.tick() * modDepth_; 00080 temp = temp * (1.0 + temp2); 00081 00082 lastFrame_[0] = temp * 0.5; 00083 return lastFrame_[0]; 00084 } 00085 00086 } // stk namespace 00087 00088 #endif
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