com.meapsoft.featextractors
Class AvgMelSpec

java.lang.Object
  com.meapsoft.featextractors.FeatureExtractor
      com.meapsoft.featextractors.AvgMelSpec

Direct Known Subclasses:

AvgMFCC

public class AvgMelSpec

extends FeatureExtractor

Averages all spectral frames together into a single feature vector and then converts the vector to the mel frequency scale.

Field Summary

protected double[]	linSpec
protected double[]	melCenter
protected double[]	melOfLin
protected double[]	melWidth
protected int	N
protected int	outDim

Constructor Summary

AvgMelSpec()

AvgMelSpec(int N, float sampleRate, int outDim)

Method Summary

java.lang.String	description() Returns a short string describing what this feature extractor does.
double[]	features(STFT stft, long startFrame, int length) Extract features from a chunk of STFT data.
double	lin2mel(double fq)
double	mel2lin(double mel)

Methods inherited from class java.lang.Object

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

Field Detail

melCenter

protected double[] melCenter

melWidth

protected double[] melWidth

melOfLin

protected double[] melOfLin

linSpec

protected double[] linSpec

N

protected int N

outDim

protected int outDim

Constructor Detail

AvgMelSpec

public AvgMelSpec()

AvgMelSpec

public AvgMelSpec(int N,
                  float sampleRate,
                  int outDim)

Method Detail

lin2mel

public double lin2mel(double fq)

mel2lin

public double mel2lin(double mel)

features

public double[] features(STFT stft,
                         long startFrame,
                         int length)

Description copied from class: FeatureExtractor

Extract features from a chunk of STFT data.

Specified by:

features in class FeatureExtractor

description

public java.lang.String description()

Description copied from class: FeatureExtractor

Returns a short string describing what this feature extractor does.

Specified by:

description in class FeatureExtractor