marytts.signalproc.analysis

Class LpcPitchSynchronousAnalyser

java.lang.Object

marytts.signalproc.process.FrameProvider

marytts.signalproc.process.PitchFrameProvider

marytts.signalproc.analysis.PitchFrameAnalyser

marytts.signalproc.analysis.LpcPitchSynchronousAnalyser

public class LpcPitchSynchronousAnalyser
extends PitchFrameAnalyser

A Pitch-synchronous LPC analyser.

Author:

Marc Schröder

Field Summary

Fields

Modifier and Type	Field and Description
static int	lpOrder

Fields inherited from class marytts.signalproc.analysis.PitchFrameAnalyser

analysisResults, analysisWindow

Fields inherited from class marytts.signalproc.process.PitchFrameProvider

currPitchmark, cutFrame, periodLengths, periodsInMemory, pitchmarks, shiftPeriods, twoHalvesWindow

Fields inherited from class marytts.signalproc.process.FrameProvider

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

Constructor Summary

Constructors

Constructor and Description
LpcPitchSynchronousAnalyser(DoubleDataSource signal, DoubleDataSource pitchmarks, int windowType, int samplingRate) Initialise a PitchLPCAnalyser.
LpcPitchSynchronousAnalyser(DoubleDataSource signal, DoubleDataSource pitchmarks, int windowType, int samplingRate, int framePeriods, int shiftPeriods) Create a new PitchLPCAnalyser with a configurable number of pitch periods per frame and pitch periods to shift by.

Method Summary

Methods

Modifier and Type	Method and Description
Object	analyse(double[] frame) Apply this PitchFrameAnalyser to the given data.
static void	main(String[] args)

Methods inherited from class marytts.signalproc.analysis.PitchFrameAnalyser

analyseAllFrames, analyseAvailableFrames, analyseNextFrame, constructAnalysisResult

Methods inherited from class marytts.signalproc.process.PitchFrameProvider

getCurrentFrame, getData, getFramePeriods, getNextFrame, getShiftPeriods, hasMoreData

Methods inherited from class marytts.signalproc.process.FrameProvider

getFrameLengthSamples, getFrameLengthTime, getFrameShiftSamples, getFrameShiftTime, getFrameStartSamples, getFrameStartTime, getSamplingRate, resetInternalTimer, stopWhenTouchingEnd, validSamplesInFrame

Methods inherited from class java.lang.Object

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

Field Detail

lpOrder

public static int lpOrder

Constructor Detail

LpcPitchSynchronousAnalyser

public LpcPitchSynchronousAnalyser(DoubleDataSource signal,
                           DoubleDataSource pitchmarks,
                           int windowType,
                           int samplingRate)

Initialise a PitchLPCAnalyser.

Parameters:

signal - the signal source to read from

pitchmarks - the source of the pitchmarks, in seconds from the start of signal

windowType - type of analysis window to use, @see{de.dfki.signalproc.window.Window#getAvailableTypes()}

samplingRate - the number of samples in one second.

LpcPitchSynchronousAnalyser

public LpcPitchSynchronousAnalyser(DoubleDataSource signal,
                           DoubleDataSource pitchmarks,
                           int windowType,
                           int samplingRate,
                           int framePeriods,
                           int shiftPeriods)

Create a new PitchLPCAnalyser with a configurable number of pitch periods per frame and pitch periods to shift by.

Parameters:

signal - audio signal

pitchmarks - an array of pitchmarks; each pitch mark is in seconds from signal start

windowType - type of analysis window to use, @see{de.dfki.signalproc.window.Window#getAvailableTypes()}

samplingRate - number of samples per second in signal

framePeriods - number of periods that each frame should contain

shiftPeriods - number of periods that frames should be shifted by

Method Detail

analyse

public Object analyse(double[] frame)

Apply this PitchFrameAnalyser to the given data.

Specified by:

analyse in class PitchFrameAnalyser

Parameters:

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

Returns:

an LPCoeffs object representing the lpc coefficients and gain factor of the frame.

Throws:

IllegalArgumentException - if frame does not have the prescribed length

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception