com.jsyn.unitgen

Class FilterBiquadCommon

java.lang.Object

com.jsyn.unitgen.UnitGenerator

com.jsyn.unitgen.UnitFilter

com.jsyn.unitgen.TunableFilter

com.jsyn.unitgen.FilterBiquad

com.jsyn.unitgen.FilterBiquadCommon

All Implemented Interfaces:

UnitSink, UnitSource

Direct Known Subclasses:

FilterBandPass, FilterBandStop, FilterHighPass, FilterLowPass, FilterPeakingEQ

public abstract class FilterBiquadCommon
extends FilterBiquad

Extend this class to create a filter that implements Biquad filter with a Q port.

Field Summary

Fields

Modifier and Type	Field and Description
UnitInputPort	Q

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
FilterBiquadCommon() No-argument constructor instantiates the Biquad common and adds an amplitude port to this filter.

Method Summary

Methods

Modifier and Type	Method and Description
void	computeBiquadCommon(double ratio, double Q)
void	recalculate() The recalculate() method checks and ensures that the frequency and Q values are at a minimum.
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

Q

public UnitInputPort Q

Constructor Detail

FilterBiquadCommon

public FilterBiquadCommon()

No-argument constructor instantiates the Biquad common and adds an amplitude port to this filter.

Method Detail

updateCoefficients

public abstract void updateCoefficients()

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

computeBiquadCommon

public void computeBiquadCommon(double ratio,
                       double Q)

recalculate

public void recalculate()

The recalculate() method checks and ensures that the frequency and Q values are at a minimum. It also only updates the Biquad coefficients if either frequency or Q have changed.