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/***************************************************/
/*! \class PitShift
\brief STK simple pitch shifter effect class.
This class implements a simple pitch shifter
using delay lines.
by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
*/
/***************************************************/
#ifndef STK_PITSHIFT_H
#define STK_PITSHIFT_H
#include "Effect.h"
#include "DelayL.h"
namespace Nyq
{
class PitShift : public Effect
{
public:
//! Class constructor.
PitShift();
//! Class destructor.
~PitShift();
//! Reset and clear all internal state.
void clear();
//! Set the pitch shift factor (1.0 produces no shift).
void setShift(StkFloat shift);
protected:
StkFloat computeSample( StkFloat input );
DelayL delayLine_[2];
StkFloat delay_[2];
StkFloat env_[2];
StkFloat rate_;
unsigned long delayLength;
unsigned long halfLength;
};
} // namespace Nyq
#endif
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