util_lbc.h

这是g.723语音标准的编码过程

/*
**
** File:        "util_lbc.h"
**
** Description:     Function prototypes for "util_lbc.c"
**  
*/

/*
    ITU-T G.723 Speech Coder   ANSI-C Source Code     Version 5.00
    copyright (c) 1995, AudioCodes, DSP Group, France Telecom,
    Universite de Sherbrooke.  All rights reserved.
*/


void     Read_lbc( Word16 *Dpnt, int Len, FILE *Fp );
void     Rem_Dc( Word16 *Dpnt );                              ////@
Word16   Vec_Norm( Word16 *Vect, Word16 Len );
void     Mem_Shift( Word16 *PrevDat, Word16 *DataBuff );
void     Line_Pack( LINEDEF *Line, char *Vout, Word16 Ftyp );
Word16*  Par2Ser( Word32 Inp, Word16 *Pnt, int BitNum );
Word32   Comp_En( Word16 *Dpnt );
Word16   Sqrt_lbc( Word32 Num );
Word16   Rand_lbc( Word16 *p );
void     Scale( Word16 *Tv, Word32 Sen );

void     Line_Wr( char *, FILE * ) ;