be.tarsos.dsp.filters

Class BandPass

java.lang.Object

be.tarsos.dsp.filters.IIRFilter

be.tarsos.dsp.filters.BandPass

All Implemented Interfaces:

AudioProcessor

public class BandPass
extends IIRFilter

A band pass filter is a filter that filters out all frequencies except for those in a band centered on the current frequency of the filter.

Author:

Damien Di Fede

Constructor Summary

Constructors

Constructor and Description
BandPass(float freq, float bandWidth, float sampleRate) Constructs a band pass filter with the requested center frequency, bandwidth and sample rate.

Method Summary

Methods

Modifier and Type	Method and Description
float	getBandWidth() Returns the band width of this filter.
void	setBandWidth(float bandWidth) Sets the band width of the filter.

Methods inherited from class be.tarsos.dsp.filters.IIRFilter

process, processingFinished

Methods inherited from class java.lang.Object

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

Constructor Detail

BandPass

public BandPass(float freq,
        float bandWidth,
        float sampleRate)

Constructs a band pass filter with the requested center frequency, bandwidth and sample rate.

Parameters:

freq - the center frequency of the band to pass (in Hz)

bandWidth - the width of the band to pass (in Hz)

sampleRate - the sample rate of audio that will be filtered by this filter

Method Detail

setBandWidth

public void setBandWidth(float bandWidth)

Sets the band width of the filter. Doing this will cause the coefficients to be recalculated.

Parameters:

bandWidth - the band width (in Hz)

getBandWidth

public float getBandWidth()

Returns the band width of this filter.

Returns:

the band width (in Hz)