#include <mfcc.h>
変数 | |
| long | smp_period |
| Sampling period in 100ns units | |
| long | smp_freq |
| Sampling frequency | |
| int | framesize |
| Window size in samples, similar to WINDOWSIZE in HTK (unit is different) | |
| int | frameshift |
| Frame shift length in samples | |
| float | preEmph |
| Pre-emphasis coefficient, corresponds to PREEMCOEF in HTK | |
| int | lifter |
| Cepstral liftering coefficient, corresponds to CEPLIFTER in HTK | |
| int | fbank_num |
| Number of filterbank channels, corresponds to NUMCHANS in HTK | |
| int | delWin |
| Delta window size, corresponds to DELTAWINDOW in HTK | |
| int | accWin |
| Acceleration window size, corresponds to ACCWINDOW in HTK | |
| float | silFloor |
| Energy silence floor in dBs, corresponds to SILFLOOR in HTK | |
| float | escale |
| Scaling coefficient of log energy, corresponds to ESCALE in HTK | |
| int | hipass |
| High frequency cut-off in fbank analysis, -1 if disabled, corresponds to HIFREQ in HTK | |
| int | lopass |
| Low frequency cut-off in fbank analysis, -1 if disabled, corresponds to LOFREQ in HTK | |
| int | enormal |
| 1 if normalise raw energy, 0 if disabled, corresponds to ENORMALISE in HTK | |
| int | raw_e |
| 1 if using raw energy, 0 if disabled, corresponds to RAWENERGY in HTK | |
| int | zmeanframe |
| 1 if apply zero mean frame like ZMEANSOURCE in HTK | |
| int | usepower |
| 1 if use power instead of magnitude in filterbank analysis | |
| float | vtln_alpha |
| warping factor for VTLN, corresponds to WARPFREQ in HTK | |
| float | vtln_upper |
| hi freq. cut off for VTLN, corresponds to WARPUCUTOFF in HTK | |
| float | vtln_lower |
| low freq. cut off for VTLN, corresponds to WARPLCUTOFF in HTK | |
| int | delta |
| 1 if delta coef. needs to be computed | |
| int | acc |
| 1 if acceleration coef. needs to be computed | |
| int | energy |
| 1 if energy coef. needs to be computed | |
| int | c0 |
| 1 if use 0'th cepstral parameter, 0 if disabled, corresponds to _0 qualifier in HTK | |
| int | absesup |
| 1 if absolute energy should be suppressed | |
| int | cmn |
| 1 if use Cepstrum Mean Normalization, 0 if disabled, corresponds to _Z qualifier in HTK | |
| int | cvn |
| 1 if use cepstral variance normalization, else 0 */ | |
| int | mfcc_dim |
| Number of MFCC dimensions | |
| int | baselen |
| Number of base MFCC dimension with energies | |
| int | vecbuflen |
| Vector length needed for computation | |
| int | veclen |
| Resulting length of vector | |
| int | loaded |
| 1 if these parameters were loaded from HTK config file or binhmm header | |
1.5.1