qm-dsp  1.8
MFCC Class Reference

#include <MFCC.h>

List of all members.

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
FFTRealfft
int WANT_C0

Detailed Description

Definition at line 35 of file MFCC.h.


Constructor & Destructor Documentation

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.

References fftSize.

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 getfftlength(), 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().


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