marytts.signalproc.analysis

Class RegularizedCepstrumEstimator

java.lang.Object

marytts.signalproc.analysis.RegularizedCepstrumEstimator

Direct Known Subclasses:

RegularizedPostWarpedCepstrumEstimator, RegularizedPreWarpedCepstrumEstimator

public class RegularizedCepstrumEstimator
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static double	DEFAULT_LAMBDA
static int	REGULARIZED_CEPSTRUM_WITH_POST_MEL_WARPING
static int	REGULARIZED_CEPSTRUM_WITH_PRE_BARK_WARPING

Constructor Summary

Constructors

Constructor and Description
RegularizedCepstrumEstimator()

Method Summary

Methods

Modifier and Type	Method and Description
protected static double[]	cepstrum2logAmpHalfSpectrum(float[] ceps, int fftSize, int samplingRateInHz, boolean isPreWarping)
static float[]	freqsLinearAmps2cepstrum(double[] linearAmps, double[][] MTransW, double[][] inverted)
protected static float[]	freqsLinearAmps2cepstrum(double[] linearAmps, double[] freqsInHz, int samplingRateInHz, int cepsOrder, boolean isPreWarping, double[] weights, double lambda)
static double[][]	precomputeInverted(double[][] MTransWM, double[][] lambdaR)
static double[][]	precomputeLambdaR(double lambda, int cepsOrder)
protected static double[][]	precomputeM(double[] freqsInHz, int samplingRateInHz, int cepsOrder, boolean isPreWarping)
static double[][]	precomputeMTransW(double[][] M, double[] weights)
static double[][]	precomputeMTransWM(double[][] MTransW, double[][] M)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_LAMBDA

public static final double DEFAULT_LAMBDA

See Also:

Constant Field Values

REGULARIZED_CEPSTRUM_WITH_PRE_BARK_WARPING

public static final int REGULARIZED_CEPSTRUM_WITH_PRE_BARK_WARPING

See Also:

Constant Field Values

REGULARIZED_CEPSTRUM_WITH_POST_MEL_WARPING

public static final int REGULARIZED_CEPSTRUM_WITH_POST_MEL_WARPING

See Also:

Constant Field Values

Constructor Detail

RegularizedCepstrumEstimator

public RegularizedCepstrumEstimator()

Method Detail

freqsLinearAmps2cepstrum

protected static float[] freqsLinearAmps2cepstrum(double[] linearAmps,
                               double[] freqsInHz,
                               int samplingRateInHz,
                               int cepsOrder,
                               boolean isPreWarping,
                               double[] weights,
                               double lambda)

precomputeM

protected static double[][] precomputeM(double[] freqsInHz,
                     int samplingRateInHz,
                     int cepsOrder,
                     boolean isPreWarping)

precomputeMTransW

public static double[][] precomputeMTransW(double[][] M,
                           double[] weights)

precomputeMTransWM

public static double[][] precomputeMTransWM(double[][] MTransW,
                            double[][] M)

precomputeLambdaR

public static double[][] precomputeLambdaR(double lambda,
                           int cepsOrder)

precomputeInverted

public static double[][] precomputeInverted(double[][] MTransWM,
                            double[][] lambdaR)

freqsLinearAmps2cepstrum

public static float[] freqsLinearAmps2cepstrum(double[] linearAmps,
                               double[][] MTransW,
                               double[][] inverted)

cepstrum2logAmpHalfSpectrum

protected static double[] cepstrum2logAmpHalfSpectrum(float[] ceps,
                                   int fftSize,
                                   int samplingRateInHz,
                                   boolean isPreWarping)