net.beadsproject.beads.analysis.featureextractors
Class PowerSpectrum

java.lang.Object
  net.beadsproject.beads.analysis.FeatureExtractor<float[],float[]>
      net.beadsproject.beads.analysis.featureextractors.FFT
          net.beadsproject.beads.analysis.featureextractors.PowerSpectrum

public class PowerSpectrum
extends FFT

PowerSpectrum calculates the power spectrum from a segmented audio signal. PowerSpectrum forwards the full power spectrum data to its listeners.

Field Summary

Fields inherited from class net.beadsproject.beads.analysis.featureextractors.FFT

fftImag, fftReal, listeners

Fields inherited from class net.beadsproject.beads.analysis.FeatureExtractor

featureDescriptions, features, name, numFeatures

Constructor Summary

PowerSpectrum()
Instantiates a new PowerSpectrum.

Method Summary

float[]	getFeatures() Gets the current features of type R, specified in the class def.
void	process(float[] data) Process some data of type P (specified by the class def).

Methods inherited from class net.beadsproject.beads.analysis.featureextractors.FFT

addListener, calculateImaginary, calculateReal, fft

Methods inherited from class net.beadsproject.beads.analysis.FeatureExtractor

getFeatureDescriptions, getName, getNumberOfFeatures, setName, setNumberOfFeatures

Methods inherited from class java.lang.Object

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

Constructor Detail

PowerSpectrum

public PowerSpectrum()

Instantiates a new PowerSpectrum.

Method Detail

process

public void process(float[] data)

Description copied from class: FeatureExtractor

Process some data of type P (specified by the class def). This method must be overidden by implementing classes.

Overrides:

process in class FFT

Parameters:

data - the data.

getFeatures

public float[] getFeatures()

Description copied from class: FeatureExtractor

Gets the current features of type R, specified in the class def.

Overrides:

getFeatures in class FeatureExtractor<float[],float[]>

Returns:

the features.