文件列表:

Soft\g729\c_code\ACELP_CO.C (27872, 2006-10-09)
Soft\g729\c_code\BASIC_OP.C (103968, 1996-01-09)
Soft\g729\c_code\BASIC_OP.H (3469, 1996-01-09)
Soft\g729\c_code\BITS.C (4179, 2006-10-09)
Soft\g729\c_code\CODER.C (4255, 2006-10-09)
Soft\g729\c_code\CODER.MAK (2910, 1996-01-09)
Soft\g729\c_code\COD_LD8K.C (28293, 2006-10-09)
Soft\g729\c_code\DECODER.C (5140, 2006-10-09)
Soft\g729\c_code\DECODER.MAK (2772, 1996-01-09)
Soft\g729\c_code\DEC_GAIN.C (4834, 2006-10-09)
Soft\g729\c_code\DEC_LAG3.C (2195, 2006-10-09)
Soft\g729\c_code\DEC_LD8K.C (9830, 2006-10-09)
Soft\g729\c_code\DE_ACELP.C (1856, 2006-10-09)
Soft\g729\c_code\DSPFUNC.C (8047, 2006-10-09)
Soft\g729\c_code\FILTER.C (3786, 2006-10-09)
Soft\g729\c_code\GAINPRED.C (7650, 2006-10-09)
Soft\g729\c_code\LD8K.H (31589, 2006-10-09)
Soft\g729\c_code\LPC.C (23183, 2006-10-09)
Soft\g729\c_code\LPCFUNC.C (11847, 2006-10-09)
Soft\g729\c_code\LSPDEC.C (3190, 2006-10-09)
Soft\g729\c_code\LSPGETQ.C (5772, 2006-10-09)
Soft\g729\c_code\OPER_32B.C (12260, 1996-01-09)
Soft\g729\c_code\OPER_32B.H (369, 1996-01-09)
Soft\g729\c_code\PITCH.C (20970, 2006-10-09)
Soft\g729\c_code\POST_PRO.C (3005, 2006-10-09)
Soft\g729\c_code\PRED_LT3.C (1770, 2006-10-09)
Soft\g729\c_code\PRE_PROC.C (3082, 2006-10-09)
Soft\g729\c_code\PST.C (33047, 2006-10-09)
Soft\g729\c_code\PWF.C (5949, 2006-10-09)
Soft\g729\c_code\P_PARITY.C (1519, 2006-10-09)
Soft\g729\c_code\QUA_GAIN.C (19830, 2006-10-09)
Soft\g729\c_code\QUA_LSP.C (9793, 2006-10-09)
Soft\g729\c_code\TAB_LD8K.C (28911, 2006-10-09)
Soft\g729\c_code\TAB_LD8K.H (1354, 2006-10-09)
Soft\g729\c_code\TYPEDEF.H (903, 2006-10-09)
Soft\g729\c_code\UTIL.C (1643, 2006-10-09)
Soft\g729\test_vectors\ALGTHM.BIT (5740, 1996-01-04)
Soft\g729\test_vectors\ALGTHM.IN (5600, 1996-01-04)
Soft\g729\test_vectors\ALGTHM.PST (5600, 1996-01-04)
... ...

ITU-T G.729 Software Package Release 2 (November 2006) /* Version 3.3 Last modified: December 26, 1995 */ TITLE ----- Explanation letter for the G.729 software package Coding of Speech at 8 kbit/s using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP) SOFTWARE AND INTELLECTUAL PROPERTY ---------------------------------- This software package is provided as part of ITU-T Recommendation G.729. Copyright (c) 1995, AT&T, France Telecom, NTT, Universite de Sherbrooke. All rights reserved. VERSION ------- This version is a 16 bit fixed-point implementation of the floating point version that was tested in January 1995. Version 2.1 of the fixed point software was tested in October 1995. This is version 3.3. COMPILATION ----------- Edit the file typedef.h to comply to your target platform For UNIX systems the following makefiles are provided coder.mak decoder.mak Edit the makefiles coder.mak and decoder.mak to set the proper options for your system. The command to compile and link all code on a UNIX system is make -f coder.mak make -f decoder.mak For other platforms, the *.mak files can be used to work out the compilation procedures. This code has been successfully compiled and run on the following platforms: Platform Operating System Compiler ----------------------------------------------------------------------------- Silicon Graphics R4400 Unix 5.2 cc Silicon Graphics R4400 Unix 5.2 gcc 2.6.3 SUN Sparc2 Unix 5.1 gcc 2.6.3 DEC ALPHA OSF/1 DEC OSF/1 cc HP Unix c89 PC DOS 6.21 Microsoft QuickC Borland 3.1 Watcom 9.6 Zortec 3.1 Microsoft 8 MS Visual C++ 1.5 Additional flags: All ITU tests were done using 13 bit input and output. This mode can be set by defining the HARDW flag. By setting the flag SYNC the input and output files are aligned. Otherwise there will be a 40 sample delay between input and output. All test files were generated without these flags defined. USAGE ----- The following files are used or generated inputfile 8 kHz sampled data file 16 bit PCM (binary) outputfile 8 kHz sampled data file 16 bit PCM (binary) bitstreamfile binary file containing bitstream coder inputfile bitstreamfile decoder bitstreamfile outputfile VERIFICATION ------------ To verify correct compilation and execution on your target machine the following test files can be obtained (temporarily) from ftp.research.att.com speech.in - speech signal algthm.in - artificial signal to test certain parts of the code fixed.in - artificial signal to test codebook search lsp.in - artificial signal to test lsp quantization pitch.in - artificial signal to test long-term predictor tame.in - sinewave to test the taming procedure The corresponding bitstream files and output files have the same name but extentions *.bit and *.pst, respectively. In addition, the following bitstream and output files are provided: parity.bit - test file for parity errors erasure.bit - test file for frame erasures overflow.bit - test file to excercise the overflow detection WARNING: These testvectors are provided to verify correct execution of the software on the target platform. They cannot be used to verify compliance to the standard. BITSTREAM FORMAT ---------------- The bitstreamfile contains for each 10 ms speech frame, 82 16-bit words. The first word is the syncword SYNC_WORD The second word is the framesize and contains the fixed value 80 The next 80 words contain the following parameters: 01 LPC1- MA predictor switch 02 LPC1- 1st codebook 7 bit 03 LPC1- 04 LPC1- 05 LPC1- 06 LPC1- 07 LPC1- 08 LPC1- 09 LPC2- 2nd codebook low 5 bit 10 LPC2- 11 LPC2- 12 LPC2- 13 LPC2- 14 LPC2- 2nd codebook high 5 bit 15 LPC2- 16 LPC2- 17 LPC2- 18 LPC2- 19 M_1 pitch period 8 bit 20 M_1 21 M_1 22 M_1 23 M_1 24 M_1 25 M_1 26 M_1 27 parity check on 1st period 1 bit 28 CB_1 codebook pulse positions 13 bit 29 CB_1 30 CB_1 31 CB_1 32 CB_1 33 CB_1 34 CB_1 35 CB_1 36 CB_1 37 CB_1 38 CB_1 39 CB_1 40 CB_1 41 S_1 codebook pulse signs 4 bit 42 S_1 43 S_1 44 S_1 45 G_1 pitch and codebook gains 3 bit stage 1 46 G_1 47 G_1 48 G_1 pitch and codebook gains 4 bit stage 2 49 G_1 50 G_1 51 G_1 52 M_2 pitch period (relative) 5 bit 53 M_2 54 M_2 55 M_2 56 M_2 57 CB_2 codebook pulse positions 13 bit 58 CB_2 59 CB_2 60 CB_2 61 CB_2 62 CB_2 63 CB_2 *** CB_2 65 CB_2 66 CB_2 67 CB_2 68 CB_2 69 CB_2 70 S_2 codebook pulse signs 4 bit 71 S_2 72 S_2 73 S_2 74 G_2 pitch and codebook gains 3 bit stage 1 75 G_2 76 G_2 77 G_2 pitch and codebook gains 4 bit stage 2 78 G_2 79 G_2 80 G_2 Bitstream information - all parameters start with msb The bits are defined as follows: #define SYNC_WORD (short)0x6b21 #define BIT_0 (short)0x007f /* definition of zero-bit in bit-stream */ #define BIT_1 (short)0x0081 /* definition of one-bit in bit-stream */ A bad frame is indicated by setting all 80 bits to zero.

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