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86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
/***************************************************/
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/*! \class Whistle
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\brief STK police/referee whistle instrument class.
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This class implements a hybrid physical/spectral
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model of a police whistle (a la Cook).
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Control Change Numbers:
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- Noise Gain = 4
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- Fipple Modulation Frequency = 11
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- Fipple Modulation Gain = 1
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- Blowing Frequency Modulation = 2
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- Volume = 128
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by Perry R. Cook 1996 - 2002.
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*/
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/***************************************************/
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#if !defined(__WHISTLE_H)
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#define __WHISTLE_H
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#include "Instrmnt.h"
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#include "Sphere.h"
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#include "Vector3D.h"
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#include "Noise.h"
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#include "WaveLoop.h"
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#include "OnePole.h"
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#include "Envelope.h"
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class Whistle : public Instrmnt
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{
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public:
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//! Class constructor.
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Whistle();
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//! Class destructor.
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~Whistle();
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//! Reset and clear all internal state.
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void clear();
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//! Set instrument parameters for a particular frequency.
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void setFrequency(MY_FLOAT frequency);
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//! Apply breath velocity to instrument with given amplitude and rate of increase.
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void startBlowing(MY_FLOAT amplitude, MY_FLOAT rate);
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//! Decrease breath velocity with given rate of decrease.
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void stopBlowing(MY_FLOAT rate);
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//! Start a note with the given frequency and amplitude.
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void noteOn(MY_FLOAT frequency, MY_FLOAT amplitude);
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//! Stop a note with the given amplitude (speed of decay).
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void noteOff(MY_FLOAT amplitude);
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//! Compute one output sample.
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MY_FLOAT tick();
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//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
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void controlChange(int number, MY_FLOAT value);
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protected:
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Vector3D *tempVectorP;
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Vector3D *tempVector;
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OnePole onepole;
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Noise noise;
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Envelope envelope;
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Sphere *can; // Declare a Spherical "can".
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Sphere *pea, *bumper; // One spherical "pea", and a spherical "bumper".
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WaveLoop *sine;
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MY_FLOAT baseFrequency;
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MY_FLOAT maxPressure;
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MY_FLOAT noiseGain;
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MY_FLOAT fippleFreqMod;
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MY_FLOAT fippleGainMod;
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MY_FLOAT blowFreqMod;
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MY_FLOAT tickSize;
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MY_FLOAT canLoss;
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int subSample, subSampCount;
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};
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#endif
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