tab_lbc.h

g723压缩算法源码

/*
**
** File:        "tab_lbc.h"
**
** Description:  This file contains extern declarations of the tables used
**               by the SG15 LBC Coder for 6.3/5.3 kbps.
**
*/


/*
    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.
*/



extern Word16   LspDcTable[];
extern Word16   FcbkGainTable[];
extern Word16   Nb_puls[];
extern Word32   CombinatorialTable[MaxPulseNum][SubFrLen/Sgrid];
extern Word32   MaxPosTable[4];
extern Word16  *AcbkGainTablePtr[2];
extern Word16   LpfConstTable[];
extern Word16	epsi170[];
extern Word16	gain170[];
extern Word16   HammingWindowTable[];
extern Word16   BinomialWindowTable[];
extern Word16   PerFiltZeroTable[];
extern Word16   PerFiltPoleTable[];
extern Word16   PostFiltZeroTable[];
extern Word16   PostFiltPoleTable[];
extern Word16   BandExpTable[];
extern Word16   CosineTable[];
extern Word16  *BandQntTable[];
extern Word16   BandInfoTable[LspQntBands][2];
extern Word16	tabgain85[85];
extern Word16	tabgain170[170];
extern Word16	fact[4];
extern Word32	L_bseg[3]; /* Bug fixed 24-09-96 */
extern Word16	base[3];