VoicForm.h

#ifndef STK_VOICFORM_H
#define STK_VOICFORM_H
 
#include "Instrmnt.h"
#include "Envelope.h"
#include "Noise.h"
#include "SingWave.h"
#include "FormSwep.h"
#include "OnePole.h"
#include "OneZero.h"
 
namespace stk {
 
/***************************************************/
/***************************************************/
 
class VoicForm : public Instrmnt
{
  public:
 
  VoicForm( void );
 
  ~VoicForm( void );
 
  void clear( void );
 
  void setFrequency( StkFloat frequency );
 
  bool setPhoneme( const char* phoneme );
 
  void setVoiced( StkFloat vGain ) { voiced_->setGainTarget(vGain); };
 
  void setUnVoiced( StkFloat nGain ) { noiseEnv_.setTarget(nGain); };
 
  void setFilterSweepRate( unsigned int whichOne, StkFloat rate );
 
  void setPitchSweepRate( StkFloat rate ) { voiced_->setSweepRate(rate); };
 
  void speak( void ) { voiced_->noteOn(); };
 
  void quiet( void );
 
  void noteOn( StkFloat frequency, StkFloat amplitude );
 
  void noteOff( StkFloat amplitude ) { this->quiet(); };
 
  void controlChange( int number, StkFloat value );
 
  StkFloat tick( unsigned int channel = 0 );
 
 
  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
 
protected:
 
  SingWave *voiced_;
  Noise    noise_;
  Envelope noiseEnv_;
  FormSwep filters_[4];
  OnePole  onepole_;
  OneZero  onezero_;
 
};
 
inline StkFloat VoicForm :: tick( unsigned int )
{
  StkFloat temp;
  temp = onepole_.tick( onezero_.tick( voiced_->tick() ) );
  temp += noiseEnv_.tick() * noise_.tick();
  lastFrame_[0] = filters_[0].tick(temp);
  lastFrame_[0] += filters_[1].tick(temp);
  lastFrame_[0] += filters_[2].tick(temp);
  lastFrame_[0] += filters_[3].tick(temp);
  /*
    temp  += noiseEnv_.tick() * noise_.tick();
    lastFrame_[0]  = filters_[0].tick(temp);
    lastFrame_[0]  = filters_[1].tick(lastFrame_[0]);
    lastFrame_[0]  = filters_[2].tick(lastFrame_[0]);
    lastFrame_[0]  = filters_[3].tick(lastFrame_[0]);
  */
  return lastFrame_[0];
}
 
inline StkFrames& VoicForm :: tick( StkFrames& frames, unsigned int channel )
{
  unsigned int nChannels = lastFrame_.channels();
#if defined(_STK_DEBUG_)
  if ( channel > frames.channels() - nChannels ) {
    oStream_ << "VoicForm::tick(): channel and StkFrames arguments are incompatible!";
    handleError( StkError::FUNCTION_ARGUMENT );
  }
#endif
 
  StkFloat *samples = &frames[channel];
  unsigned int j, hop = frames.channels() - nChannels;
  if ( nChannels == 1 ) {
    for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
      *samples++ = tick();
  }
  else {
    for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
      *samples++ = tick();
      for ( j=1; j<nChannels; j++ )
        *samples++ = lastFrame_[j];
    }
  }
 
  return frames;
}
 
} // stk namespace
 
#endif