com.softsynth.jsyn
Class Filter_LowShelf

java.lang.Object
  java.util.Observable
      com.softsynth.jsyn.SynthObject
          com.softsynth.jsyn.SynthSound
              com.softsynth.jsyn.SynthUnit
                  com.softsynth.jsyn.SynthFilter
                      com.softsynth.jsyn.Filter_LowShelf

public class Filter_LowShelf
extends SynthFilter

Filter_LowShelf This filter is based on the BiQuad filter. Coefficients are updated whenever the frequency, gain or slope changes.

Version:

JSyn Version 14.2

Author:

(C) 1997 Phil Burk, SoftSynth.com, All Rights Reserved

See Also:

Synth, SynthUnit, Filter_202p2z

Field Summary

SynthInput	amplitude Amplitude of Output
SynthInput	frequency Frequency of filter cutoff in Hertz.
SynthInput	gain Gain of peak.
SynthInput	slope Shelf Slope parameter.

Fields inherited from class com.softsynth.jsyn.SynthFilter

input, output

Constructor Summary

Filter_LowShelf()

Filter_LowShelf(SynthContext synthContext)
Create a Filter_LowShelf that runs at Synth.RATE_AUDIO.

Filter_LowShelf(SynthContext synthContext, int calculationRate)

Method Summary

Methods inherited from class com.softsynth.jsyn.SynthSound

addPort, addPort, findNamedPort, getName, getNumPorts, getPortAt, getPriority, setPriority, setStage, setStage, start, start, stop, stop

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

frequency

public SynthInput frequency

Frequency of filter cutoff in Hertz. SIGNAL_TYPE_FULL_RANGE

gain

public SynthInput gain

Gain of peak. Use 1.0 for flat response.

slope

public SynthInput 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.

amplitude

public SynthInput amplitude

Amplitude of Output

Constructor Detail

Filter_LowShelf

public Filter_LowShelf(SynthContext synthContext,
                       int calculationRate)
                throws SynthException

Throws:

SynthException

Filter_LowShelf

public Filter_LowShelf(SynthContext synthContext)
                throws SynthException

Create a Filter_LowShelf that runs at Synth.RATE_AUDIO.

Throws:

SynthException - If name does not match list of valid units. Note that match is case sensitive.

Filter_LowShelf

public Filter_LowShelf()
                throws SynthException

Throws:

SynthException