52   void noteOn( StkFloat frequency, StkFloat amplitude );
 
   55   StkFloat 
tick( 
unsigned int channel = 0 );
 
   75   temp = vibrato_.
tick() * modDepth_ * 0.2;    
 
   76   waves_[0]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[0]);
 
   77   waves_[1]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[1]);
 
   78   waves_[2]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[2]);
 
   79   waves_[3]->setFrequency(baseFrequency_ * (1.0 + temp) * ratios_[3]);
 
   81   waves_[3]->addPhaseOffset( twozero_.
lastOut() );
 
   82   temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
 
   85   waves_[2]->addPhaseOffset( temp );
 
   86   temp = (1.0 - (control2_ * 0.5)) * gains_[2] * adsr_[2]->
tick() * waves_[2]->tick();
 
   88   temp += control2_ * 0.5 * gains_[1] * adsr_[1]->tick() * waves_[1]->tick();
 
   89   temp = temp * control1_;
 
   91   waves_[0]->addPhaseOffset(temp);
 
   92   temp = gains_[0] * adsr_[0]->tick() * waves_[0]->tick();
 
   94   lastFrame_[0] = temp * 0.5;
 
  100   unsigned int nChannels = lastFrame_.
channels();
 
  101 #if defined(_STK_DEBUG_) 
  102   if ( channel > frames.
channels() - nChannels ) {
 
  103     oStream_ << 
"PercFlut::tick(): channel and StkFrames arguments are incompatible!";
 
  108   StkFloat *samples = &frames[channel];
 
  109   unsigned int j, hop = frames.
channels() - nChannels;
 
  110   if ( nChannels == 1 ) {
 
  111     for ( 
unsigned int i=0; i<frames.
frames(); i++, samples += hop )
 
  115     for ( 
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
 
  117       for ( j=1; j<nChannels; j++ )
 
  118         *samples++ = lastFrame_[j];