mirror of
https://github.com/thestk/stk
synced 2026-01-12 04:21:52 +00:00
75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
/***************************************************/
|
|
/*! \class Simple
|
|
\brief STK wavetable/noise instrument.
|
|
|
|
This class combines a looped wave, a
|
|
noise source, a biquad resonance filter,
|
|
a one-pole filter, and an ADSR envelope
|
|
to create some interesting sounds.
|
|
|
|
Control Change Numbers:
|
|
- Filter Pole Position = 2
|
|
- Noise/Pitched Cross-Fade = 4
|
|
- Envelope Rate = 11
|
|
- Gain = 128
|
|
|
|
by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
|
|
*/
|
|
/***************************************************/
|
|
|
|
#if !defined(__SIMPLE_H)
|
|
#define __SIMPLE_H
|
|
|
|
#include "Instrmnt.h"
|
|
#include "ADSR.h"
|
|
#include "WaveLoop.h"
|
|
#include "OnePole.h"
|
|
#include "BiQuad.h"
|
|
#include "Noise.h"
|
|
|
|
class Simple : public Instrmnt
|
|
{
|
|
public:
|
|
//! Class constructor.
|
|
Simple();
|
|
|
|
//! Class destructor.
|
|
virtual ~Simple();
|
|
|
|
//! Clear internal states.
|
|
void clear();
|
|
|
|
//! Set instrument parameters for a particular frequency.
|
|
virtual void setFrequency(MY_FLOAT frequency);
|
|
|
|
//! Start envelope toward "on" target.
|
|
void keyOn();
|
|
|
|
//! Start envelope toward "off" target.
|
|
void keyOff();
|
|
|
|
//! Start a note with the given frequency and amplitude.
|
|
virtual void noteOn(MY_FLOAT frequency, MY_FLOAT amplitude);
|
|
|
|
//! Stop a note with the given amplitude (speed of decay).
|
|
virtual void noteOff(MY_FLOAT amplitude);
|
|
|
|
//! Compute one output sample.
|
|
virtual MY_FLOAT tick();
|
|
|
|
//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
|
|
virtual void controlChange(int number, MY_FLOAT value);
|
|
|
|
protected:
|
|
ADSR *adsr;
|
|
WaveLoop *loop;
|
|
OnePole *filter;
|
|
BiQuad *biquad;
|
|
Noise *noise;
|
|
MY_FLOAT baseFrequency;
|
|
MY_FLOAT loopGain;
|
|
|
|
};
|
|
|
|
#endif
|