com.jsyn.unitgen

Class FFTBase

java.lang.Object

com.jsyn.unitgen.UnitGenerator

com.jsyn.unitgen.FFTBase

Direct Known Subclasses:

FFT, IFFT

public abstract class FFTBase
extends UnitGenerator

Periodically transform the complex input signal using an FFT to a complex spectral stream.

Version:

016

Author:

Phil Burk (C) 2013 Mobileer Inc

See Also:

IFFT

Field Summary

Fields

Modifier and Type	Field and Description
protected int	cursor
protected double[]	imaginaryInput
protected double[]	imaginaryOutput
UnitInputPort	inputImaginary
UnitInputPort	inputReal
UnitOutputPort	outputImaginary
UnitOutputPort	outputReal
protected double[]	realInput
protected double[]	realOutput

Fields inherited from class com.jsyn.unitgen.UnitGenerator

FALSE, PORT_NAME_AMPLITUDE, PORT_NAME_CUTOFF, PORT_NAME_FREQUENCY, PORT_NAME_FREQUENCY_SCALER, PORT_NAME_INPUT, PORT_NAME_OUTPUT, PORT_NAME_PAN, PORT_NAME_PHASE, PORT_NAME_PRESSURE, PORT_NAME_TIMBRE, PORT_NAME_TIME, synthesisEngine, TRUE, VERY_SMALL_FLOAT

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FFTBase()

Method Summary

Modifier and Type	Method and Description
void	generate(int start, int limit) Perform essential synthesis function.
protected abstract int	getSign()
int	getSize()
void	setSize(int size)

Methods inherited from class com.jsyn.unitgen.UnitGenerator

addPort, addPort, autoStop, convertHalfLifeToMultiplier, convertTimeToRate, flattenOutputs, generate, getCircuit, getFramePeriod, getFrameRate, getId, getPortByName, getPorts, getSynthesisEngine, getSynthesizer, getTopUnit, getUnitGenerator, incrementWrapPhase, isEnabled, isStartRequired, printConnections, printConnections, printConnections, pullData, setCircuit, setEnabled, setFrameRate, setPort, setSynthesisEngine, start, start, start, stop, stop, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

inputReal

public UnitInputPort inputReal

inputImaginary

public UnitInputPort inputImaginary

outputReal

public UnitOutputPort outputReal

outputImaginary

public UnitOutputPort outputImaginary

realInput

protected double[] realInput

realOutput

protected double[] realOutput

imaginaryInput

protected double[] imaginaryInput

imaginaryOutput

protected double[] imaginaryOutput

cursor

protected int cursor

Constructor Detail

FFTBase

protected FFTBase()

Method Detail

setSize

public void setSize(int size)

getSize

public int getSize()

generate

public void generate(int start,
                     int limit)

Description copied from class: UnitGenerator

Perform essential synthesis function.

Specified by:

generate in class UnitGenerator

Parameters:

start - offset into port buffers

limit - limit offset into port buffers for loop

getSign

protected abstract int getSign()