com.meapsoft.featextractors
Class AvgMFCC

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

public class AvgMFCC

extends AvgMelSpec

Averages all spectral frames together into a single feature vector and then converts the vector to mel frequency cepstral coefficients, a commonly used feature in speech recognition systems.

Field Summary

Fields inherited from class com.meapsoft.featextractors.AvgMelSpec

linSpec, melCenter, melOfLin, melWidth, N, outDim

Constructor Summary

AvgMFCC()

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.

Methods inherited from class com.meapsoft.featextractors.AvgMelSpec

lin2mel, mel2lin

Methods inherited from class java.lang.Object

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

Constructor Detail

AvgMFCC

public AvgMFCC()

Method Detail

features

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

Description copied from class: FeatureExtractor

Extract features from a chunk of STFT data.

Overrides:

features in class AvgMelSpec

description

public java.lang.String description()

Description copied from class: FeatureExtractor

Returns a short string describing what this feature extractor does.

Overrides:

description in class AvgMelSpec