Data header prepended to every MFCC output frame. More...

#include <mfcc_comp.h>

Data Fields
uint32_t	magic
	Magic word MFCC_MAGIC (0x6d666363).
uint32_t	frame_number
	Frame number, counting calculated frames starting from 0.
int32_t	reserved
	Reserved for future use, set to 0.
int32_t	energy
	Weighted signal energy in Q9.23.
int32_t	noise_energy
	Weighted noise floor energy in Q9.23.
int32_t	vad_flag
	VAD decision: 1 = speech, 0 = silence.

Detailed Description

Data header prepended to every MFCC output frame.

Written before the Mel spectrum or cepstral coefficient data in each output frame.

Field Documentation

int32_t mfcc_data_header::energy

Weighted signal energy in Q9.23.

uint32_t mfcc_data_header::frame_number

Frame number, counting calculated frames starting from 0.

uint32_t mfcc_data_header::magic

Magic word MFCC_MAGIC (0x6d666363).

int32_t mfcc_data_header::noise_energy

Weighted noise floor energy in Q9.23.

int32_t mfcc_data_header::reserved

Reserved for future use, set to 0.

int32_t mfcc_data_header::vad_flag

VAD decision: 1 = speech, 0 = silence.

The documentation for this struct was generated from the following file: