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https://github.com/thestk/stk
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110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
/***************************************************/
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/*! \class BlowHole
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\brief STK clarinet physical model with one
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register hole and one tonehole.
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This class is based on the clarinet model,
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with the addition of a two-port register hole
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and a three-port dynamic tonehole
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implementation, as discussed by Scavone and
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Cook (1998).
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In this implementation, the distances between
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the reed/register hole and tonehole/bell are
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fixed. As a result, both the tonehole and
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register hole will have variable influence on
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the playing frequency, which is dependent on
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the length of the air column. In addition,
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the highest playing freqeuency is limited by
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these fixed lengths.
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This is a digital waveguide model, making its
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use possibly subject to patents held by Stanford
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University, Yamaha, and others.
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Control Change Numbers:
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- Reed Stiffness = 2
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- Noise Gain = 4
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- Tonehole State = 11
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- Register State = 1
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- Breath Pressure = 128
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by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
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*/
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/***************************************************/
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#ifndef STK_BLOWHOLE_H
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#define STK_BLOWHOLE_H
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#include "Instrmnt.h"
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#include "DelayL.h"
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#include "ReedTable.h"
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#include "OneZero.h"
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#include "PoleZero.h"
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#include "Envelope.h"
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#include "Noise.h"
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#include "SineWave.h"
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class BlowHole : 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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BlowHole(StkFloat lowestFrequency);
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//! Class destructor.
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~BlowHole();
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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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//! Set the tonehole state (0.0 = closed, 1.0 = fully open).
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void setTonehole(StkFloat newValue);
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//! Set the register hole state (0.0 = closed, 1.0 = fully open).
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void setVent(StkFloat newValue);
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//! Apply breath pressure 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 pressure 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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//! 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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StkFloat computeSample( void );
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DelayL delays_[3];
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ReedTable reedTable_;
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OneZero filter_;
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PoleZero tonehole_;
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PoleZero vent_;
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Envelope envelope_;
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Noise noise_;
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SineWave vibrato_;
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unsigned long length_;
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StkFloat scatter_;
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StkFloat thCoeff_;
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StkFloat rhGain_;
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StkFloat outputGain_;
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StkFloat noiseGain_;
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StkFloat vibratoGain_;
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};
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#endif
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