Package org.jamdev.jpamutils.wavFiles

Class PreEmphasisFilter

java.lang.Object

org.jamdev.jpamutils.wavFiles.PreEmphasisFilter

public class PreEmphasisFilter
extends Object

Filter for emphasising low frequencies.

Author:

Jamie Macaulay

Constructor Summary

Constructors

Constructor	Description
PreEmphasisFilter()

Method Summary

Modifier and Type	Method	Description
double[]	preEmphasis(double[] data, double factor)	Run a pre-emphasis filter on the data.
int[]	preEmphasis(int[] data, double factor)	Run a pre-emphasis filter on the data.

Methods inherited from class java.lang.Object

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

Constructor Details

PreEmphasisFilter

public PreEmphasisFilter()

Method Details

preEmphasis

public double[] preEmphasis(double[] data, double factor)

Run a pre-emphasis filter on the data. This attenuates lower frequencies depending on factor.

Parameters:

data - - the wave data

factor - - the attenuation factor between 0 and 1 e.g. 0.97

Returns:

the filtered data

preEmphasis

public int[] preEmphasis(int[] data, double factor)

Run a pre-emphasis filter on the data. This attenuates lower frequencies depending on factor.

Parameters:

data - - the wave data

factor - - the attenuation factor between 0 and 1 e.g. 0.97

Returns:

the filtered data