MFCC Class Reference

#include <MFCC.h>

Public Member Functions
	MFCC (MFCCConfig config)
virtual	~MFCC ()
int	process (const double *inframe, double *outceps)
	Process time-domain input data. More...
int	process (const double *real, const double *imag, double *outceps)
	Process time-domain input data. More...
int	getfftlength () const

Private Attributes
double	lowestFrequency
int	linearFilters
double	linearSpacing
int	logFilters
double	logSpacing
int	fftSize
int	totalFilters
double	logPower
int	samplingRate
int	nceps
double *	ceps
double **	mfccDCTMatrix
double **	mfccFilterWeights
Window< double > *	window
double *	realOut
double *	imagOut
double *	fftMag
double *	earMag
FFTReal *	fft
int	WANT_C0

Detailed Description

Definition at line 35 of file MFCC.h.

Constructor & Destructor Documentation

MFCC::MFCC

(

MFCCConfig

config

)

Definition at line 24 of file MFCC.cpp.

References ceps, earMag, fft, fftMag, MFCCConfig::fftsize, fftSize, MFCCConfig::FS, imagOut, linearFilters, linearSpacing, logFilters, MFCCConfig::logpower, logPower, logSpacing, lowestFrequency, mfccDCTMatrix, mfccFilterWeights, MFCCConfig::nceps, nceps, realOut, samplingRate, totalFilters, MFCCConfig::want_c0, WANT_C0, MFCCConfig::window, and window.

MFCC::~MFCC ( )

virtual

Definition at line 168 of file MFCC.cpp.

References ceps, earMag, fft, fftMag, imagOut, mfccDCTMatrix, mfccFilterWeights, nceps, realOut, totalFilters, and window.

Member Function Documentation

int MFCC::process	(	const double *	inframe,
		double *	outceps
	)

Process time-domain input data.

inframe must contain getfftlength() samples. outceps must contain space for nceps values, plus one if want_c0 is specified.

Definition at line 205 of file MFCC.cpp.

References Window< T >::cut(), fft, fftSize, FFTReal::forward(), imagOut, realOut, and window.

Referenced by ClusterMeltSegmenter::extractFeaturesMFCC().

int MFCC::process	(	const double *	real,
		const double *	imag,
		double *	outceps
	)

Process time-domain input data.

real and imag must contain getfftlength()/2+1 elements (i.e. the conjugate half of the FFT is not expected). outceps must contain space for nceps values, plus one if want_c0 is specified.

Definition at line 220 of file MFCC.cpp.

References earMag, fftMag, fftSize, logPower, mfccDCTMatrix, mfccFilterWeights, nceps, totalFilters, and WANT_C0.

int MFCC::getfftlength ( ) const

inline

Definition at line 56 of file MFCC.h.

Referenced by ClusterMeltSegmenter::extractFeaturesMFCC().

Member Data Documentation

double MFCC::lowestFrequency

private

Definition at line 60 of file MFCC.h.

Referenced by MFCC().

int MFCC::linearFilters

private

Definition at line 61 of file MFCC.h.

Referenced by MFCC().

double MFCC::linearSpacing

private

Definition at line 62 of file MFCC.h.

Referenced by MFCC().

int MFCC::logFilters

private

Definition at line 63 of file MFCC.h.

Referenced by MFCC().

double MFCC::logSpacing

private

Definition at line 64 of file MFCC.h.

Referenced by MFCC().

int MFCC::fftSize

private

Definition at line 67 of file MFCC.h.

Referenced by MFCC(), and process().

int MFCC::totalFilters

private

Definition at line 69 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double MFCC::logPower

private

Definition at line 70 of file MFCC.h.

Referenced by MFCC(), and process().

int MFCC::samplingRate

private

Definition at line 73 of file MFCC.h.

Referenced by MFCC().

int MFCC::nceps

private

Definition at line 74 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double* MFCC::ceps

private

Definition at line 77 of file MFCC.h.

Referenced by MFCC(), and ~MFCC().

double** MFCC::mfccDCTMatrix

private

Definition at line 79 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double** MFCC::mfccFilterWeights

private

Definition at line 80 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

Window<double>* MFCC::window

private

Definition at line 83 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double* MFCC::realOut

private

Definition at line 86 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double* MFCC::imagOut

private

Definition at line 87 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double* MFCC::fftMag

private

Definition at line 88 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

double* MFCC::earMag

private

Definition at line 89 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

FFTReal* MFCC::fft

private

Definition at line 90 of file MFCC.h.

Referenced by MFCC(), process(), and ~MFCC().

int MFCC::WANT_C0

private

Definition at line 93 of file MFCC.h.

Referenced by MFCC(), and process().

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The documentation for this class was generated from the following files:

• MFCC.h
• MFCC.cpp