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.
int	process (const double *real, const double *imag, double *outceps)
	Process time-domain input data.
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::MFCC

(

MFCCConfig

config

)

Definition at line 24 of file MFCC.cpp.

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

~MFCC()

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

process() [1/2]

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 fft, fftSize, imagOut, process(), realOut, and window.

Referenced by process().

process() [2/2]

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.

getfftlength()

int MFCC::getfftlength ( ) const

inline

Definition at line 56 of file MFCC.h.

References fftSize.

Member Data Documentation

lowestFrequency

double MFCC::lowestFrequency

private

Definition at line 60 of file MFCC.h.

Referenced by MFCC().

linearFilters

int MFCC::linearFilters

private

Definition at line 61 of file MFCC.h.

Referenced by MFCC().

linearSpacing

double MFCC::linearSpacing

private

Definition at line 62 of file MFCC.h.

Referenced by MFCC().

logFilters

int MFCC::logFilters

private

Definition at line 63 of file MFCC.h.

Referenced by MFCC().

logSpacing

double MFCC::logSpacing

private

Definition at line 64 of file MFCC.h.

Referenced by MFCC().

fftSize

int MFCC::fftSize

private

Definition at line 67 of file MFCC.h.

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

totalFilters

int MFCC::totalFilters

private

Definition at line 69 of file MFCC.h.

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

logPower

double MFCC::logPower

private

Definition at line 70 of file MFCC.h.

Referenced by MFCC(), and process().

samplingRate

int MFCC::samplingRate

private

Definition at line 73 of file MFCC.h.

Referenced by MFCC().

nceps

int MFCC::nceps

private

Definition at line 74 of file MFCC.h.

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

ceps

double* MFCC::ceps

private

Definition at line 77 of file MFCC.h.

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

mfccDCTMatrix

double** MFCC::mfccDCTMatrix

private

Definition at line 79 of file MFCC.h.

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

mfccFilterWeights

double** MFCC::mfccFilterWeights

private

Definition at line 80 of file MFCC.h.

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

window

Window<double>* MFCC::window

private

Definition at line 83 of file MFCC.h.

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

realOut

double* MFCC::realOut

private

Definition at line 86 of file MFCC.h.

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

imagOut

double* MFCC::imagOut

private

Definition at line 87 of file MFCC.h.

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

fftMag

double* MFCC::fftMag

private

Definition at line 88 of file MFCC.h.

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

earMag

double* MFCC::earMag

private

Definition at line 89 of file MFCC.h.

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

fft

FFTReal* MFCC::fft

private

Definition at line 90 of file MFCC.h.

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

WANT_C0

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