?? chorus.cpp
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/***************************************************//*! \class Chorus \brief STK chorus effect class. This class implements a chorus effect. by Perry R. Cook and Gary P. Scavone, 1995 - 2005.*//***************************************************/#include "Chorus.h"#if !defined(SYMBIAN)#include <iostream>#endifChorus :: Chorus(StkFloat baseDelay){ delayLine_[0].setMaximumDelay( (unsigned long) (baseDelay * 1.414) + 2); delayLine_[0].setDelay( baseDelay ); delayLine_[1].setMaximumDelay( (unsigned long) (baseDelay * 1.414) + 2); delayLine_[1].setDelay( baseDelay ); baseLength_ = baseDelay; mods_[0].setFrequency(0.2); mods_[1].setFrequency(0.222222); modDepth_ = 0.05; effectMix_ = 0.5; this->clear();}Chorus :: ~Chorus(){}void Chorus :: clear(){ delayLine_[0].clear(); delayLine_[1].clear(); lastOutput_[0] = 0.0; lastOutput_[1] = 0.0;}void Chorus :: setModDepth(StkFloat depth){ modDepth_ = depth;}void Chorus :: setModFrequency(StkFloat frequency){ mods_[0].setFrequency(frequency); mods_[1].setFrequency(frequency * 1.1111);}StkFloat Chorus :: computeSample(StkFloat input){ delayLine_[0].setDelay( baseLength_ * 0.707 * (1.0 + modDepth_ * mods_[0].tick()) ); delayLine_[1].setDelay( baseLength_ * 0.5 * (1.0 - modDepth_ * mods_[1].tick()) ); lastOutput_[0] = input * (1.0 - effectMix_); lastOutput_[0] += effectMix_ * delayLine_[0].tick(input); lastOutput_[1] = input * (1.0 - effectMix_); lastOutput_[1] += effectMix_ * delayLine_[1].tick(input); return Effect::lastOut();}?? 快捷鍵說明
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