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STK faux conical bore reed instrument class. More...
#include <Saxofony.h>
Public Member Functions | |
Saxofony (StkFloat lowestFrequency) | |
Class constructor, taking the lowest desired playing frequency. | |
~Saxofony (void) | |
Class destructor. | |
void | clear (void) |
Reset and clear all internal state. | |
void | setFrequency (StkFloat frequency) |
Set instrument parameters for a particular frequency. | |
void | setBlowPosition (StkFloat aPosition) |
Set the "blowing" position between the air column terminations (0.0 - 1.0). | |
void | startBlowing (StkFloat amplitude, StkFloat rate) |
Apply breath pressure to instrument with given amplitude and rate of increase. | |
void | stopBlowing (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 faux conical bore reed instrument class.
This class implements a "hybrid" digital waveguide instrument that can generate a variety of wind-like sounds. It has also been referred to as the "blowed string" model. The waveguide section is essentially that of a string, with one rigid and one lossy termination. The non-linear function is a reed table. The string can be "blown" at any point between the terminations, though just as with strings, it is impossible to excite the system at either end. If the excitation is placed at the string mid-point, the sound is that of a clarinet. At points closer to the "bridge", the sound is closer to that of a saxophone. See Scavone (2002) for more details.
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.
stk::Saxofony::Saxofony | ( | StkFloat | lowestFrequency | ) |
Class constructor, taking the lowest desired playing frequency.
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.
00138 { 00139 unsigned int nChannels = lastFrame_.channels(); 00140 #if defined(_STK_DEBUG_) 00141 if ( channel > frames.channels() - nChannels ) { 00142 oStream_ << "Saxofony::tick(): channel and StkFrames arguments are incompatible!"; 00143 handleError( StkError::FUNCTION_ARGUMENT ); 00144 } 00145 #endif 00146 00147 StkFloat *samples = &frames[channel]; 00148 unsigned int j, hop = frames.channels() - nChannels; 00149 if ( nChannels == 1 ) { 00150 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) 00151 *samples++ = tick(); 00152 } 00153 else { 00154 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) { 00155 *samples++ = tick(); 00156 for ( j=1; j<nChannels; j++ ) 00157 *samples++ = lastFrame_[j]; 00158 } 00159 } 00160 00161 return frames; 00162 }
The Synthesis ToolKit in C++ (STK) |
©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved. |