subnoise.h

来自「Mobile STK for Symbian OS V0.1」· C头文件 代码 · 共 44 行

/***************************************************/
/*! \class SubNoise
    \brief STK sub-sampled noise generator.

    Generates a new random number every "rate" ticks
    using the C rand() function.  The quality of the
    rand() function varies from one OS to another.

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

#ifndef STK_SUBNOISE_H
#define STK_SUBNOISE_H

#include "Noise.h"

class SubNoise : public Noise
{
 public:

  //! Default constructor sets sub-sample rate to 16.
  SubNoise( int subRate = 16 );

  //! Class destructor.
  ~SubNoise();

  //! Return the current sub-sampling rate.
  int subRate( void ) const { return rate_; };

  //! Set the sub-sampling rate.
  void setRate( int subRate );

 protected:  

  StkFloat computeSample( void );

  int counter_;
  int rate_;

};

#endif