org.jscience.media.audio.dsp.filters
Class IIRFilterDesignBase

java.lang.Object
  org.jscience.media.audio.dsp.filters.IIRFilterDesignBase

Direct Known Subclasses:

IIRBandpassFilterDesign, IIRHighpassFilterDesign, IIRLowpassFilterDesign

public abstract class IIRFilterDesignBase
extends java.lang.Object

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Field Summary

protected double	alpha DOCUMENT ME!
protected double	beta DOCUMENT ME!
protected int	frequency DOCUMENT ME!
protected double	gamma DOCUMENT ME!
protected double	parameter DOCUMENT ME!
protected int	sampleRate DOCUMENT ME!

Constructor Summary

IIRFilterDesignBase(int frequency, int sampleRate, double parameter)
Creates a new IIRFilterDesignBase object.

Method Summary

protected double	calcRadiansPerSample(double freq) DOCUMENT ME!
abstract void	doFilterDesign() DOCUMENT ME!
double	getAlpha() DOCUMENT ME!
double	getBeta() DOCUMENT ME!
double	getGamma() DOCUMENT ME!
protected double	getThetaZero() DOCUMENT ME!
void	printCoefficients() DOCUMENT ME!

Methods inherited from class java.lang.Object

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

Field Detail

frequency

protected int frequency

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sampleRate

protected int sampleRate

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parameter

protected double parameter

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alpha

protected double alpha

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beta

protected double beta

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gamma

protected double gamma

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Constructor Detail

IIRFilterDesignBase

public IIRFilterDesignBase(int frequency,
                           int sampleRate,
                           double parameter)

Creates a new IIRFilterDesignBase object.

Parameters:

frequency - DOCUMENT ME!

sampleRate - DOCUMENT ME!

parameter - DOCUMENT ME!

Method Detail

calcRadiansPerSample

protected double calcRadiansPerSample(double freq)

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Parameters:

freq - DOCUMENT ME!

Returns:

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getThetaZero

protected double getThetaZero()

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Returns:

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doFilterDesign

public abstract void doFilterDesign()

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printCoefficients

public void printCoefficients()

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getAlpha

public double getAlpha()

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Returns:

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getBeta

public double getBeta()

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Returns:

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getGamma

public double getGamma()

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Returns:

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