marytts.signalproc.analysis

Class EnergyAnalyser_dB

java.lang.Object

marytts.signalproc.process.FrameProvider

marytts.signalproc.analysis.FrameBasedAnalyser<Double>

marytts.signalproc.analysis.EnergyAnalyser

marytts.signalproc.analysis.EnergyAnalyser_dB

public class EnergyAnalyser_dB
extends EnergyAnalyser

Author:

Marc Schröder A class that analyses the energy distribution, and computes a silence cutoff threshold, in the dB energy domain.

Nested Class Summary

Nested classes/interfaces inherited from class marytts.signalproc.analysis.FrameBasedAnalyser

FrameBasedAnalyser.FrameAnalysisResult<T>

Field Summary

Fields inherited from class marytts.signalproc.analysis.EnergyAnalyser

DEFAULT_MAXSIZE, frameEnergies, len, maxSize, offset

Fields inherited from class marytts.signalproc.analysis.FrameBasedAnalyser

analysisResults

Fields inherited from class marytts.signalproc.process.FrameProvider

frame, frameLength, frameShift, frameStart, nextFrameStart, processor, samplingRate, signal, totalRead, validSamplesInFrame

Constructor Summary

Constructors

Constructor and Description
EnergyAnalyser_dB(DoubleDataSource signal, int framelength, int samplingRate)
EnergyAnalyser_dB(DoubleDataSource signal, int framelength, int frameShift, int samplingRate)
EnergyAnalyser_dB(DoubleDataSource signal, int framelength, int frameShift, int samplingRate, int maxSize)

Method Summary

Methods

Modifier and Type	Method and Description
Double	analyse(double[] frame) Apply this FrameBasedAnalyser to the given data.

Methods inherited from class marytts.signalproc.analysis.EnergyAnalyser

energySegmentation, getEnergyHistogram, getEnergyHistogram, getMaxFrameEnergy, getMeanFrameEnergy, getMinFrameEnergy, getSilenceCutoff, getSilenceCutoffFromKMeansClustering, getSilenceCutoffFromSortedEnergies, getSpeechStretches, getSpeechStretchesUsingEnergyHistory, main, rememberFrameEnergy

Methods inherited from class marytts.signalproc.analysis.FrameBasedAnalyser

analyseAllFrames, analyseAvailableFrames, analyseNextFrame, constructAnalysisResult

Methods inherited from class marytts.signalproc.process.FrameProvider

getCurrentFrame, getData, getFrameLengthSamples, getFrameLengthTime, getFrameShiftSamples, getFrameShiftTime, getFrameStartSamples, getFrameStartTime, getNextFrame, getSamplingRate, hasMoreData, resetInternalTimer, stopWhenTouchingEnd, validSamplesInFrame

Methods inherited from class java.lang.Object

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

Constructor Detail

EnergyAnalyser_dB

public EnergyAnalyser_dB(DoubleDataSource signal,
                 int framelength,
                 int samplingRate)

EnergyAnalyser_dB

public EnergyAnalyser_dB(DoubleDataSource signal,
                 int framelength,
                 int frameShift,
                 int samplingRate)

EnergyAnalyser_dB

public EnergyAnalyser_dB(DoubleDataSource signal,
                 int framelength,
                 int frameShift,
                 int samplingRate,
                 int maxSize)

Method Detail

analyse

public Double analyse(double[] frame)

Apply this FrameBasedAnalyser to the given data.

Overrides:

analyse in class EnergyAnalyser

Parameters:

frame - the data to analyse, which must be of the length prescribed by this FrameBasedAnalyser, i.e. by FrameProvider.getFrameLengthSamples().

Returns:

a Double representing the total energy in the frame.

Throws:

IllegalArgumentException - if frame does not have the prescribed length