Home   Information   Classes   Download   Usage   Mail List   Requirements   Links   FAQ   Tutorial


stk::JetTable Class Reference

STK jet table class. More...

#include <JetTable.h>

Inheritance diagram for stk::JetTable:
stk::Function stk::Stk

List of all members.

Public Member Functions

StkFloat tick (StkFloat input)
 Take one sample input and map to one sample of output.
StkFramestick (StkFrames &frames, unsigned int channel=0)
 Take a channel of the StkFrames object as inputs to the table and replace with corresponding outputs.
StkFramestick (StkFrames &iFrames, StkFrames &oFrames, unsigned int iChannel=0, unsigned int oChannel=0)
 Take a channel of the iFrames object as inputs to the table and write outputs to the oFrames object.

Detailed Description

STK jet table class.

This class implements a flue jet non-linear function, computed by a polynomial calculation. Contrary to the name, this is not a "table".

Consult Fletcher and Rossing, Karjalainen, Cook, and others for more information.

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


Member Function Documentation

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

Take a channel of the StkFrames object as inputs to the table and replace with corresponding outputs.

The StkFrames argument reference is returned. 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.

00068 {
00069 #if defined(_STK_DEBUG_)
00070   if ( channel >= frames.channels() ) {
00071     oStream_ << "JetTable::tick(): channel and StkFrames arguments are incompatible!";
00072     handleError( StkError::FUNCTION_ARGUMENT );
00073   }
00074 #endif
00075 
00076   StkFloat *samples = &frames[channel];
00077   unsigned int hop = frames.channels();
00078   for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
00079     *samples = *samples * (*samples * *samples - 1.0);
00080     if ( *samples > 1.0) *samples = 1.0;
00081     if ( *samples < -1.0) *samples = -1.0;
00082   }
00083 
00084   lastFrame_[0] = *(samples-hop);
00085   return frames;
00086 }

StkFrames & stk::JetTable::tick ( StkFrames iFrames,
StkFrames oFrames,
unsigned int  iChannel = 0,
unsigned int  oChannel = 0 
) [inline]

Take a channel of the iFrames object as inputs to the table and write outputs to the oFrames object.

The iFrames object reference is returned. Each channel argument must be less than the number of channels in the corresponding 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.

00089 {
00090 #if defined(_STK_DEBUG_)
00091   if ( iChannel >= iFrames.channels() || oChannel >= oFrames.channels() ) {
00092     oStream_ << "JetTable::tick(): channel and StkFrames arguments are incompatible!";
00093     handleError( StkError::FUNCTION_ARGUMENT );
00094   }
00095 #endif
00096 
00097   StkFloat *iSamples = &iFrames[iChannel];
00098   StkFloat *oSamples = &oFrames[oChannel];
00099   unsigned int iHop = iFrames.channels(), oHop = oFrames.channels();
00100   for ( unsigned int i=0; i<iFrames.frames(); i++, iSamples += iHop, oSamples += oHop ) {
00101     *oSamples = *oSamples * (*oSamples * *oSamples - 1.0);
00102     if ( *oSamples > 1.0) *oSamples = 1.0;
00103     if ( *oSamples < -1.0) *oSamples = -1.0;
00104   }
00105 
00106   lastFrame_[0] = *(oSamples-oHop);
00107   return iFrames;
00108 }


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.