SimpString.h

/* Simplified string model.               */ 
/* Compatible with STK version 4.2.1.     */

#if !defined(__SimpString_h)
#define __SimpString_h

#include "Instrmnt.h"
#include "Delay.h"
#include "DelayA.h"
#include "Filter.h"

class SimpString : public Instrmnt
{
 protected:  
  DelayA *delayLine;  // main string
  Delay *combDelay;   // pick-position simulation
  Filter *loopFilter; // string losses
  long length;
  StkFloat loopGain;
  StkFloat lastFreq;
  StkFloat lastLength;
  StkFloat pluckAmp;
  StkFloat pluckPos;
  StkFloat computeSample(StkFloat stringInput);
  StkFloat computeSample(void);
 public:
  SimpString(StkFloat lowestFreq);
  ~SimpString();
  void clear();
  void setPluckPos(StkFloat position);
  void pluck(StkFloat amplitude);
  void setFreq(StkFloat frequency);
  void pluck(StkFloat amplitude,StkFloat position);
  void noteOn(StkFloat freq, StkFloat amp);
  void noteOn(StkFloat freq, StkFloat amp, StkFloat position);
  StkFloat tick(StkFloat stringInput);
  StkFloat tick(void);
  void noteOff(StkFloat amp);
  void setBearing(StkFloat angle); /* -45 to +45 degrees */
};
#endif

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written by Julius Orion Smith III
Julius Smith's background is in electrical engineering (BS Rice 1975, PhD Stanford 1983). He is presently Professor of Music and Associate Professor (by courtesy) of Electrical Engineering at Stanford's Center for Computer Research in Music and Acoustics (CCRMA), teaching courses and pursuing research related to signal processing applied to music and audio systems. See http://ccrma.stanford.edu/~jos/ for details.