com.softsynth.jsyn.util
Class HarmonicTable

java.lang.Object
  java.util.Observable
      com.softsynth.jsyn.SynthObject
          com.softsynth.jsyn.SynthTable
              com.softsynth.jsyn.util.HarmonicTable

public class HarmonicTable
extends SynthTable

A table containing harmonics of a fundamental sine wave. This can be used to generate periodic waveforms using additive synthesis.

Field Summary

short[]

data Generated waveform will be placed in this array.

Constructor Summary

HarmonicTable(int numSamples, int numPartials)

Method Summary

void	build() Generate a waveform by adding sinewaves partials.
void	clear() Zero the ampltudes and the waveform.
int	getNumPartials()
double	getPartial(int index)
void	sawtooth() Set amplitudes for sawtooth waveform.
void	setPartial(int index, double amplitude) Specify the relative amplitude for a harmonic partial.
void	square() Set amplitudes for square waveform.
void	triangle() Set amplitudes for triangle waveform.

Methods inherited from class com.softsynth.jsyn.SynthTable

allocate, length, write, write, write, write, write, write

Methods inherited from class com.softsynth.jsyn.SynthObject

delete, deleteAll, enableDeletionByGarbageCollector, enableTracking, getPeer, getSynthContext, isTrackingEnabled, toString, track

Methods inherited from class java.util.Observable

addObserver, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

data

public short[] data

Generated waveform will be placed in this array.

Constructor Detail

HarmonicTable

public HarmonicTable(int numSamples,
                     int numPartials)
              throws SynthException

Throws:

SynthException

Method Detail

setPartial

public void setPartial(int index,
                       double amplitude)

Specify the relative amplitude for a harmonic partial. Using index=0 controls the fundamentals amplitude. The resulting waveform is normalized so only the relative amplitudes matter.

getPartial

public double getPartial(int index)

getNumPartials

public int getNumPartials()

build

public void build()

Generate a waveform by adding sinewaves partials.

square

public void square()

Set amplitudes for square waveform. Then build waveform.

triangle

public void triangle()

Set amplitudes for triangle waveform. Then build waveform.

sawtooth

public void sawtooth()

Set amplitudes for sawtooth waveform. Then build waveform.

clear

public void clear()

Zero the ampltudes and the waveform.