g729ev_g729b_tab_dtx.c

最新的ITU-T的宽带语音编解码标准G.729.1,是对原先的G.729的最好的调整.码流输出速率可以进行自适应调整.满足未来通信要求.希望对大家有所帮助.

/* ITU-T G.729EV Optimization/Characterization Candidate                         */
/* Version:       1.0.a                                                          */
/* Revision Date: June 28, 2006                                                  */

/*
   ITU-T G.729EV Optimization/Characterization Candidate    ANSI-C Source Code
   Copyright (c) 2006 
   France Telecom, Matsushita Electric, Mindspeed, Siemens AG, ETRI, VoiceAge Corp.
   All rights reserved
*/

#include "G729EV_G729B_tab_dtx.h"

/* Quantization of LSF vector */
Word16    PtrTab_1[32] = { 96, 52, 20, 54, 86, 114, 82, 68, 36, 121, 48, 92, 18, 120,
  94, 124, 50, 125, 4, 100, 28, 76, 12, 117, 81, 22, 90, 116,
  127, 21, 108, 66
};
Word16    PtrTab_2[2][16] = { {31, 21, 9, 3, 10, 2, 19, 26, 4, 3, 11, 29, 15, 27, 21, 12}
,
{16, 1, 0, 0, 8, 25, 22, 20, 19, 23, 20, 31, 4, 31, 20, 31}
};

Word16    noise_fg_sum[G729EV_G729_MODE][G729EV_G729_M] = {
  {7798, 8447, 8205, 8293, 8126, 8477, 8447, 8703, 9043, 8604}
  ,
  {10514, 12402, 12833, 11914, 11447, 11670, 11132, 11311, 11844, 11447}
};

/* Quantization of SID gain */
Word16    fact[NB_GAIN + 1] = { 410, 26, 13 };
Word16    marg[NB_GAIN + 1] = { 0, 0, 1 };
Word16    tab_Sidgain[32] = {
  2, 5, 8, 13, 20, 32, 50, 64,
  80, 101, 127, 160, 201, 253, 318, 401,
  505, 635, 800, 1007, 1268, 1596, 2010, 2530,
  3185, 4009, 5048, 6355, 8000, 10071, 12679, 15962
};