vad.h

语音压缩编码中的g729p编码程序

/*
   ITU-T G.729 Annex C+ - Reference C code for floating point
                         implementation of G.729 Annex C+
                         (integration of Annexes B, D and E)
                         Version 2.1 of October 1999
*/

/*
 File : VAD.H
*/

#define     NP            12                  /* Increased LPC order */
#define     NOISE         0
#define     VOICE         1
#define     INIT_FRAME    32
#define     INIT_COUNT    20
#define     ZC_START      120
#define     ZC_END        200

void vad_init(void);

void vad( FLOAT  rc, FLOAT *lsf, FLOAT *rxx, FLOAT *sigpp, int frm_count,
    int prev_marker, int pprev_marker, int *marker, FLOAT *Energy_db);