clarinet.h

来自「Mobile STK for Symbian OS V0.1」· C头文件 代码 · 共 87 行

/***************************************************/
/*! \class Clarinet
    \brief STK clarinet physical model class.

    This class implements a simple clarinet
    physical model, as discussed by Smith (1986),
    McIntyre, Schumacher, Woodhouse (1983), and
    others.

    This is a digital waveguide model, making its
    use possibly subject to patents held by Stanford
    University, Yamaha, and others.

    Control Change Numbers: 
       - Reed Stiffness = 2
       - Noise Gain = 4
       - Vibrato Frequency = 11
       - Vibrato Gain = 1
       - Breath Pressure = 128

    by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
*/
/***************************************************/

#ifndef STK_CLARINET_H
#define STK_CLARINET_H

#include "Instrmnt.h"
#include "DelayL.h"
#include "ReedTable.h"
#include "OneZero.h"
#include "Envelope.h"
#include "Noise.h"
#include "SineWave.h"

class Clarinet : public Instrmnt
{
 public:
  //! Class constructor, taking the lowest desired playing frequency.
  /*!
    An StkError will be thrown if the rawwave path is incorrectly set.
  */
  Clarinet(StkFloat lowestFrequency);

  //! Class destructor.
  ~Clarinet();

  //! Reset and clear all internal state.
  void clear();

  //! Set instrument parameters for a particular frequency.
  void setFrequency(StkFloat frequency);

  //! Apply breath pressure to instrument with given amplitude and rate of increase.
  void startBlowing(StkFloat amplitude, StkFloat rate);

  //! Decrease breath pressure with given rate of decrease.
  void stopBlowing(StkFloat rate);

  //! Start a note with the given frequency and amplitude.
  void noteOn(StkFloat frequency, StkFloat amplitude);

  //! Stop a note with the given amplitude (speed of decay).
  void noteOff(StkFloat amplitude);

  //! Perform the control change specified by \e number and \e value (0.0 - 128.0).
  void controlChange(int number, StkFloat value);

 protected:

  StkFloat computeSample( void );

  DelayL delayLine_;
  ReedTable reedTable_;
  OneZero filter_;
  Envelope envelope_;
  Noise noise_;
  SineWave vibrato_;
  long length_;
  StkFloat outputGain_;
  StkFloat noiseGain_;
  StkFloat vibratoGain_;

};

#endif