mirror of
https://github.com/thestk/stk
synced 2026-01-11 20:11:52 +00:00
Version 4.4.0
This commit is contained in:
committed by
Stephen Sinclair
parent
d199342e86
commit
eccd8c9981
@@ -1,3 +1,15 @@
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#ifndef STK_SITAR_H
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#define STK_SITAR_H
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#include "Instrmnt.h"
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#include "DelayA.h"
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#include "OneZero.h"
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#include "Noise.h"
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#include "ADSR.h"
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#include <cmath>
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namespace stk {
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/***************************************************/
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/*! \class Sitar
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\brief STK sitar string model class.
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@@ -13,19 +25,10 @@
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Stanford, bearing the names of Karplus and/or
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Strong.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2007.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2009.
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*/
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/***************************************************/
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#ifndef STK_SITAR_H
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#define STK_SITAR_H
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#include "Instrmnt.h"
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#include "DelayA.h"
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#include "OneZero.h"
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#include "Noise.h"
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#include "ADSR.h"
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class Sitar : public Instrmnt
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{
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public:
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@@ -33,27 +36,28 @@ class Sitar : public Instrmnt
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Sitar( StkFloat lowestFrequency = 20 );
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//! Class destructor.
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~Sitar();
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~Sitar( void );
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//! Reset and clear all internal state.
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void clear();
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void clear( void );
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//! Set instrument parameters for a particular frequency.
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void setFrequency(StkFloat frequency);
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void setFrequency( StkFloat frequency );
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//! Pluck the string with the given amplitude using the current frequency.
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void pluck(StkFloat amplitude);
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void pluck( StkFloat amplitude );
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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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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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void noteOff( StkFloat amplitude );
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//! Compute and return one output sample.
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StkFloat tick( unsigned int channel = 0 );
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protected:
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StkFloat computeSample( void );
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DelayA delayLine_;
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OneZero loopFilter_;
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Noise noise_;
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@@ -66,5 +70,23 @@ class Sitar : public Instrmnt
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};
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inline StkFloat Sitar :: tick( unsigned int )
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{
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if ( fabs(targetDelay_ - delay_) > 0.001 ) {
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if ( targetDelay_ < delay_ )
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delay_ *= 0.99999;
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else
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delay_ *= 1.00001;
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delayLine_.setDelay( delay_ );
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}
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lastFrame_[0] = delayLine_.tick( loopFilter_.tick( delayLine_.lastOut() * loopGain_ ) +
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(amGain_ * envelope_.tick() * noise_.tick()));
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return lastFrame_[0];
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}
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} // stk namespace
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#endif
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