com.jsyn.unitgen

Class FilterBiquadShelf

java.lang.Object

com.jsyn.unitgen.UnitGenerator

com.jsyn.unitgen.UnitFilter

com.jsyn.unitgen.TunableFilter

com.jsyn.unitgen.FilterBiquad

com.jsyn.unitgen.FilterBiquadShelf

All Implemented Interfaces:

UnitSink, UnitSource

Direct Known Subclasses:

FilterHighShelf, FilterLowShelf

public abstract class FilterBiquadShelf
extends FilterBiquad

This filter is based on the BiQuad filter and is used as a base class for FilterLowShelf and FilterHighShelf. Coefficients are updated whenever the frequency, gain or slope changes.

Field Summary

Fields

Modifier and Type	Field and Description
UnitInputPort	gain Gain of peak.
UnitInputPort	slope Shelf Slope parameter.

Fields inherited from class com.jsyn.unitgen.FilterBiquad

amplitude

Fields inherited from class com.jsyn.unitgen.TunableFilter

frequency

Fields inherited from class com.jsyn.unitgen.UnitFilter

input, output

Fields inherited from class com.jsyn.unitgen.UnitGenerator

FALSE, TRUE

Constructor Summary

Constructors

Constructor and Description
FilterBiquadShelf()

Method Summary

Methods

Modifier and Type	Method and Description
void	recalculate() Compute coefficients for shelf filter if frequency, gain or slope have changed.
abstract void	updateCoefficients() Abstract method.

Methods inherited from class com.jsyn.unitgen.FilterBiquad

generate, performBiquadFilter

Methods inherited from class com.jsyn.unitgen.UnitFilter

getInput, getOutput

Methods inherited from class com.jsyn.unitgen.UnitGenerator

addPort, addPort, convertHalfLifeToMultiplier, flattenOutputs, generate, getCircuit, getFramePeriod, getFrameRate, getPortByName, getPorts, getSynthesisEngine, getSynthesizer, getTopUnit, getUnitGenerator, isEnabled, pullData, setCircuit, setEnabled, setFrameRate, setPort, setSynthesisEngine, start, start, stop, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jsyn.unitgen.UnitSink

getUnitGenerator, start, start, stop, stop

Methods inherited from interface com.jsyn.unitgen.UnitSource

getUnitGenerator

Field Detail

gain

public UnitInputPort gain

Gain of peak. Use 1.0 for flat response.

slope

public UnitInputPort slope

Shelf Slope parameter. When S = 1, the shelf slope is as steep as you can get it and remain monotonically increasing or decreasing gain with frequency.

Constructor Detail

FilterBiquadShelf

public FilterBiquadShelf()

Method Detail

updateCoefficients

public abstract void updateCoefficients()

Abstract method. Each filter must implement its update of coefficients.

recalculate

public void recalculate()

Compute coefficients for shelf filter if frequency, gain or slope have changed.