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STK Hammond-oid organ FM synthesis instrument. More...
#include <BeeThree.h>
Public Member Functions | |
BeeThree (void) | |
Class constructor. | |
~BeeThree (void) | |
Class destructor. | |
void | noteOn (StkFloat frequency, StkFloat amplitude) |
Start a note with the given frequency and amplitude. | |
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 Hammond-oid organ FM synthesis instrument.
This class implements a simple 4 operator topology, also referred to as algorithm 8 of the TX81Z.
Algorithm 8 is : 1 --. 2 -\| +-> Out 3 -/| 4 --
Control Change Numbers:
The basic Chowning/Stanford FM patent expired in 1995, but there exist follow-on patents, mostly assigned to Yamaha. If you are of the type who should worry about this (making money) worry away.
by Perry R. Cook and Gary P. Scavone, 1995-2012.
stk::BeeThree::BeeThree | ( | 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::FM.
00099 { 00100 unsigned int nChannels = lastFrame_.channels(); 00101 #if defined(_STK_DEBUG_) 00102 if ( channel > frames.channels() - nChannels ) { 00103 oStream_ << "BeeThree::tick(): channel and StkFrames arguments are incompatible!"; 00104 handleError( StkError::FUNCTION_ARGUMENT ); 00105 } 00106 #endif 00107 00108 StkFloat *samples = &frames[channel]; 00109 unsigned int j, hop = frames.channels() - nChannels; 00110 if ( nChannels == 1 ) { 00111 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) 00112 *samples++ = tick(); 00113 } 00114 else { 00115 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) { 00116 *samples++ = tick(); 00117 for ( j=1; j<nChannels; j++ ) 00118 *samples++ = lastFrame_[j]; 00119 } 00120 } 00121 00122 return frames; 00123 }
The Synthesis ToolKit in C++ (STK) |
©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved. |