/usr/include/stk/Whistle.h is in libstk0-dev 4.5.2+dfsg-5build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | #ifndef STK_WHISTLE_H
#define STK_WHISTLE_H
#include "Instrmnt.h"
#include "Sphere.h"
#include "Vector3D.h"
#include "Noise.h"
#include "SineWave.h"
#include "OnePole.h"
#include "Envelope.h"
namespace stk {
/***************************************************/
/*! \class Whistle
\brief STK police/referee whistle instrument class.
This class implements a hybrid physical/spectral
model of a police whistle (a la Cook).
Control Change Numbers:
- Noise Gain = 4
- Fipple Modulation Frequency = 11
- Fipple Modulation Gain = 1
- Blowing Frequency Modulation = 2
- Volume = 128
by Perry R. Cook 1995--2014.
*/
/***************************************************/
class Whistle : public Instrmnt
{
public:
//! Class constructor.
/*!
An StkError will be thrown if the rawwave path is incorrectly set.
*/
Whistle( void );
//! Class destructor.
~Whistle( void );
//! Reset and clear all internal state.
void clear( void );
//! Set instrument parameters for a particular frequency.
void setFrequency( StkFloat frequency );
//! Apply breath velocity to instrument with given amplitude and rate of increase.
void startBlowing( StkFloat amplitude, StkFloat rate );
//! Decrease breath velocity with given rate of decrease.
void stopBlowing( StkFloat rate );
//! Start a note with the given frequency and amplitude.
void noteOn( StkFloat frequency, StkFloat amplitude );
//! Stop a note with the given amplitude (speed of decay).
void noteOff( StkFloat amplitude );
//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
void controlChange( int number, StkFloat value );
//! Compute and return one output sample.
StkFloat tick( unsigned int channel = 0 );
//! Fill a channel of the StkFrames object with computed outputs.
/*!
The \c channel argument must be less than the number of
channels in the StkFrames argument (the first channel is specified
by 0). However, range checking is only performed if _STK_DEBUG_
is defined during compilation, in which case an out-of-range value
will trigger an StkError exception.
*/
StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
protected:
Vector3D *tempVectorP_;
Vector3D tempVector_;
OnePole onepole_;
Noise noise_;
Envelope envelope_;
Sphere can_; // Declare a Spherical "can".
Sphere pea_, bumper_; // One spherical "pea", and a spherical "bumper".
SineWave sine_;
StkFloat baseFrequency_;
StkFloat noiseGain_;
StkFloat fippleFreqMod_;
StkFloat fippleGainMod_;
StkFloat blowFreqMod_;
StkFloat tickSize_;
StkFloat canLoss_;
int subSample_, subSampCount_;
};
inline StkFrames& Whistle :: tick( StkFrames& frames, unsigned int channel )
{
unsigned int nChannels = lastFrame_.channels();
#if defined(_STK_DEBUG_)
if ( channel > frames.channels() - nChannels ) {
oStream_ << "Whistle::tick(): channel and StkFrames arguments are incompatible!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif
StkFloat *samples = &frames[channel];
unsigned int j, hop = frames.channels() - nChannels;
if ( nChannels == 1 ) {
for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
*samples++ = tick();
}
else {
for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
*samples++ = tick();
for ( j=1; j<nChannels; j++ )
*samples++ = lastFrame_[j];
}
}
return frames;
}
} // stk namespace
#endif
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