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STK bowed string instrument class. More...
#include <Bowed.h>
Public Member Functions | |
Bowed (StkFloat lowestFrequency=8.0) | |
Class constructor, taking the lowest desired playing frequency. | |
~Bowed (void) | |
Class destructor. | |
void | clear (void) |
Reset and clear all internal state. | |
void | setFrequency (StkFloat frequency) |
Set instrument parameters for a particular frequency. | |
void | setVibrato (StkFloat gain) |
Set vibrato gain. | |
void | startBowing (StkFloat amplitude, StkFloat rate) |
Apply breath pressure to instrument with given amplitude and rate of increase. | |
void | stopBowing (StkFloat rate) |
Decrease breath pressure with given rate of decrease. | |
void | noteOn (StkFloat frequency, StkFloat amplitude) |
Start a note with the given frequency and amplitude. | |
void | noteOff (StkFloat amplitude) |
Stop a note with the given amplitude (speed of decay). | |
void | controlChange (int number, StkFloat value) |
Perform the control change specified by number and value (0.0 - 128.0). | |
StkFloat | tick (unsigned int channel=0) |
Compute and return one output sample. | |
StkFrames & | tick (StkFrames &frames, unsigned int channel=0) |
Fill a channel of the StkFrames object with computed outputs. |
STK bowed string instrument class.
This class implements a bowed string model, a la Smith (1986), after McIntyre, Schumacher, Woodhouse (1983).
This is a digital waveguide model, making its use possibly subject to patents held by Stanford University, Yamaha, and others.
Control Change Numbers:
by Perry R. Cook and Gary P. Scavone, 1995-2012. Contributions by Esteban Maestre, 2011.
Fill a channel of the StkFrames object with computed outputs.
The 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.
Implements stk::Instrmnt.
00129 { 00130 unsigned int nChannels = lastFrame_.channels(); 00131 #if defined(_STK_DEBUG_) 00132 if ( channel > frames.channels() - nChannels ) { 00133 oStream_ << "Bowed::tick(): channel and StkFrames arguments are incompatible!"; 00134 handleError( StkError::FUNCTION_ARGUMENT ); 00135 } 00136 #endif 00137 00138 StkFloat *samples = &frames[channel]; 00139 unsigned int j, hop = frames.channels() - nChannels; 00140 if ( nChannels == 1 ) { 00141 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) 00142 *samples++ = tick(); 00143 } 00144 else { 00145 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) { 00146 *samples++ = tick(); 00147 for ( j=1; j<nChannels; j++ ) 00148 *samples++ = lastFrame_[j]; 00149 } 00150 } 00151 00152 return frames; 00153 }
The Synthesis ToolKit in C++ (STK) |
©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved. |