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stk::Moog Class Reference

STK moog-like swept filter sampling synthesis class. More...

#include <Moog.h>

Inheritance diagram for stk::Moog:
stk::Sampler stk::Instrmnt stk::Stk

List of all members.

Public Member Functions

 Moog (void)
 Class constructor.
 ~Moog (void)
 Class destructor.
void setFrequency (StkFloat frequency)
 Set instrument parameters for a particular frequency.
void noteOn (StkFloat frequency, StkFloat amplitude)
 Start a note with the given frequency and amplitude.
void setModulationSpeed (StkFloat mSpeed)
 Set the modulation (vibrato) speed in Hz.
void setModulationDepth (StkFloat mDepth)
 Set the modulation (vibrato) depth.
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.
StkFramestick (StkFrames &frames, unsigned int channel=0)
 Fill a channel of the StkFrames object with computed outputs.

Detailed Description

STK moog-like swept filter sampling synthesis class.

This instrument uses one attack wave, one looped wave, and an ADSR envelope (inherited from the Sampler class) and adds two sweepable formant (FormSwep) filters.

Control Change Numbers:

by Perry R. Cook and Gary P. Scavone, 1995-2012.


Constructor & Destructor Documentation

stk::Moog::Moog ( void   ) 

Class constructor.

An StkError will be thrown if the rawwave path is incorrectly set.


Member Function Documentation

StkFrames & stk::Moog::tick ( StkFrames frames,
unsigned int  channel = 0 
) [inline, virtual]

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::Sampler.

00097 {
00098   unsigned int nChannels = lastFrame_.channels();
00099 #if defined(_STK_DEBUG_)
00100   if ( channel > frames.channels() - nChannels ) {
00101     oStream_ << "Moog::tick(): channel and StkFrames arguments are incompatible!";
00102     handleError( StkError::FUNCTION_ARGUMENT );
00103   }
00104 #endif
00105 
00106   StkFloat *samples = &frames[channel];
00107   unsigned int j, hop = frames.channels() - nChannels;
00108   if ( nChannels == 1 ) {
00109     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
00110       *samples++ = tick();
00111   }
00112   else {
00113     for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
00114       *samples++ = tick();
00115       for ( j=1; j<nChannels; j++ )
00116         *samples++ = lastFrame_[j];
00117     }
00118   }
00119 
00120   return frames;
00121 }


The documentation for this class was generated from the following file:

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