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# BandedWG.h

    00001 #ifndef STK_BANDEDWG_H
    00002 #define STK_BANDEDWG_H
    00003
    00004 #include "Instrmnt.h"
    00005 #include "DelayL.h"
    00006 #include "BowTable.h"
    00007 #include "ADSR.h"
    00008 #include "BiQuad.h"
    00009
    00010 namespace stk {
    00011
    00012 /***************************************************/
    00041 /***************************************************/
    00042
    00043 const int MAX_BANDED_MODES = 20;
    00044
    00045 class BandedWG : public Instrmnt
    00046 {
    00047  public:
    00049   BandedWG( void );
    00050
    00052   ~BandedWG( void );
    00053
    00055   void clear( void );
    00056
    00058   void setStrikePosition( StkFloat position );
    00059
    00061   void setPreset( int preset );
    00062
    00064   void setFrequency( StkFloat frequency );
    00065
    00067   void startBowing( StkFloat amplitude, StkFloat rate );
    00068
    00070   void stopBowing( StkFloat rate );
    00071
    00073   void pluck( StkFloat amp );
    00074
    00076   void noteOn( StkFloat frequency, StkFloat amplitude );
    00077
    00079   void noteOff( StkFloat amplitude );
    00080
    00082   void controlChange( int number, StkFloat value );
    00083
    00085   StkFloat tick( unsigned int channel = 0 );
    00086
    00088
    00095   StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
    00096
    00097  protected:
    00098
    00099   bool doPluck_;
    00100   bool trackVelocity_;
    00101   int nModes_;
    00102   int presetModes_;
    00103   BowTable bowTable_;
    00104   ADSR     adsr_;
    00105   BiQuad   bandpass_[MAX_BANDED_MODES];
    00106   DelayL   delay_[MAX_BANDED_MODES];
    00107   StkFloat maxVelocity_;
    00108   StkFloat modes_[MAX_BANDED_MODES];
    00109   StkFloat frequency_;
    00110   StkFloat baseGain_;
    00111   StkFloat gains_[MAX_BANDED_MODES];
    00112   StkFloat basegains_[MAX_BANDED_MODES];
    00113   StkFloat excitation_[MAX_BANDED_MODES];
    00114   StkFloat integrationConstant_;
    00115   StkFloat velocityInput_;
    00116   StkFloat bowVelocity_;
    00117   StkFloat bowTarget_;
    00118   StkFloat bowPosition_;
    00119   StkFloat strikeAmp_;
    00120   int strikePosition_;
    00121
    00122 };
    00123
    00124 inline StkFrames& BandedWG :: tick( StkFrames& frames, unsigned int channel )
    00125 {
    00126   unsigned int nChannels = lastFrame_.channels();
    00127 #if defined(_STK_DEBUG_)
    00128   if ( channel > frames.channels() - nChannels ) {
    00129     oStream_ << "BandedWG::tick(): channel and StkFrames arguments are incompatible!";
    00130     handleError( StkError::FUNCTION_ARGUMENT );
    00131   }
    00132 #endif
    00133
    00134   StkFloat *samples = &frames[channel];
    00135   unsigned int j, hop = frames.channels() - nChannels;
    00136   if ( nChannels == 1 ) {
    00137     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
    00138       *samples++ = tick();
    00139   }
    00140   else {
    00141     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
    00142       *samples++ = tick();
    00143       for ( j=1; j<nChannels; j++ )
    00144         *samples++ = lastFrame_[j];
    00145     }
    00146   }
    00147
    00148   return frames;
    00149 }
    00150
    00151 } // stk namespace
    00152
    00153 #endif

The Synthesis ToolKit in C++ (STK)
©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved.