org.openimaj.audio.filters

Class MelFilter

java.lang.Object

org.openimaj.audio.filters.TriangularFilter

org.openimaj.audio.filters.MelFilter

public class MelFilter
extends TriangularFilter

A Mel triangular filter for frequency spectrum. The class is constructed using linear frequencies (Hz) to give the start and end points of the filter. These are converted into Mel frequencies (non-linear) so that the triangle which is Isosceles in Mel frequency is non-linear in the linear frequency (stretched towards the higher frequencies).

Version:

$Author$, $Revision$, $Date$

Author:

David Dupplaw (dpd@ecs.soton.ac.uk)

Created:

25 Jul 2012

Field Summary

Fields inherited from class org.openimaj.audio.filters.TriangularFilter

centreFrequency, filterAmplitude, highFrequency, highSlope, lowFrequency, lowSlope

Constructor Summary

Constructors

Constructor and Description
MelFilter(double startFreq, double endFreq) The Mel Filter default constructor.

Method Summary

Modifier and Type	Method and Description
String	toString()

Methods inherited from class org.openimaj.audio.filters.TriangularFilter

getCentreFrequency, getFilterAmplitude, getHighFrequency, getLowFrequency, getResponseCurve, getWeightAt, process, setCentreFrequency, setFilterAmplitude, setHighFrequency, setLowFrequency

Methods inherited from class java.lang.Object

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

Constructor Detail

MelFilter

public MelFilter(double startFreq,
                 double endFreq)

The Mel Filter default constructor.

Parameters:

startFreq - The start frequency of the filter

endFreq - The end frequency of the filter

Method Detail

toString

public String toString()

Overrides:

toString in class TriangularFilter

See Also:

Object.toString()