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STK blown bottle instrument class. More...
#include <BlowBotl.h>
Public Member Functions | |
BlowBotl (void) | |
Class constructor. | |
~BlowBotl (void) | |
Class destructor. | |
void | clear (void) |
Reset and clear all internal state. | |
void | setFrequency (StkFloat frequency) |
Set instrument parameters for a particular frequency. | |
void | startBlowing (StkFloat amplitude, StkFloat rate) |
Apply breath velocity to instrument with given amplitude and rate of increase. | |
void | stopBlowing (StkFloat rate) |
Decrease breath velocity 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 blown bottle instrument class.
This class implements a helmholtz resonator (biquad filter) with a polynomial jet excitation (a la Cook).
Control Change Numbers:
by Perry R. Cook and Gary P. Scavone, 1995-2012.
stk::BlowBotl::BlowBotl | ( | void | ) |
Class constructor.
An StkError will be thrown if the rawwave path is incorrectly set.
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.
00116 { 00117 unsigned int nChannels = lastFrame_.channels(); 00118 #if defined(_STK_DEBUG_) 00119 if ( channel > frames.channels() - nChannels ) { 00120 oStream_ << "BlowBotl::tick(): channel and StkFrames arguments are incompatible!"; 00121 handleError( StkError::FUNCTION_ARGUMENT ); 00122 } 00123 #endif 00124 00125 StkFloat *samples = &frames[channel]; 00126 unsigned int j, hop = frames.channels() - nChannels; 00127 if ( nChannels == 1 ) { 00128 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) 00129 *samples++ = tick(); 00130 } 00131 else { 00132 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) { 00133 *samples++ = tick(); 00134 for ( j=1; j<nChannels; j++ ) 00135 *samples++ = lastFrame_[j]; 00136 } 00137 } 00138 00139 return frames; 00140 }
The Synthesis ToolKit in C++ (STK) |
©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved. |