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https://github.com/thestk/stk
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101 lines
2.6 KiB
C++
101 lines
2.6 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 - 2004.
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*/
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/***************************************************/
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#ifndef STK_WHISTLE_H
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#define STK_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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/*!
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An StkError will be thrown if the rawwave path is incorrectly set.
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*/
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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(StkFloat frequency);
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//! Apply breath velocity to instrument with given amplitude and rate of increase.
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void startBlowing(StkFloat amplitude, StkFloat rate);
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//! Decrease breath velocity with given rate of decrease.
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void stopBlowing(StkFloat rate);
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//! Start a note with the given frequency and amplitude.
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void noteOn(StkFloat frequency, StkFloat amplitude);
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//! Stop a note with the given amplitude (speed of decay).
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void noteOff(StkFloat amplitude);
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//! Compute one output sample.
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StkFloat tick();
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//! Computer \e vectorSize outputs and return them in \e vector.
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StkFloat *tick(StkFloat *vector, unsigned int vectorSize);
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//! Fill a channel of the StkFrames object with computed outputs.
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/*!
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The \c channel argument should be one or greater (the first
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channel is specified by 1). An StkError will be thrown if the \c
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channel argument is zero or it is greater than the number of
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channels in the StkFrames object.
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*/
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StkFrames& tick( StkFrames& frames, unsigned int channel = 1 );
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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, StkFloat 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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StkFloat baseFrequency_;
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StkFloat noiseGain_;
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StkFloat fippleFreqMod_;
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StkFloat fippleGainMod_;
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StkFloat blowFreqMod_;
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StkFloat tickSize_;
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StkFloat canLoss_;
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int subSample_, subSampCount_;
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};
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#endif
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