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Description: ITU提供的G729AB（有sid，vad等功能）的源代码，用于voip的语音编解码使用。-ITU provided G729AB (have sid, vad functions) of the source code for the voice codec voip use.
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Size: 102400 |
Author: tanger |
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Description: ITU-T G.722.2
国际电信联盟G.722.2建议书，2003年7月版。该建议书是语音通讯领域的压缩标准，被GSM，WCDMA，3GPP等采用，题目为16kbit下的宽带语音编码，使用自适应多率宽带编码。
内容主要有代数码激励线性预测编码(ACELP)，话音活动检测(VAD)等。-This Recommendation describes the high quality Adaptive Multi-Rate Wideband (AMR-WB)
encoder and decoder that is primarily intended for 7 kHz bandwidth speech signals. AMR-WB
operates at a multitude of bit rates ranging from 6.6 kbit/s to 23.85 kbit/s. The bit rate may be
changed at any 20-ms frame boundary.
Annex C includes an integrated C source code software package which contains the implementation
of the G.722.2 encoder and decoder and its Annexes A and B and Appendix I. A set of digital test
vectors for developers is provided in Annex D. These test vectors are a verification tool providing an
indication of success in implementing this codec.
G.722.2 AMR-WB is the same codec as the 3GPP AMR-WB. The corresponding 3GPP
specifications are TS 26.190 for the speech codec and TS 26.194 for the Voice Activity Detector.
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Size: 728064 |
Author: 刘涛 |
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Description: Both ITU G.723.1 and G.729 provide VAD algorithm/c code. They perform well in modest SNR environment
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Size: 120832 |
Author: greatwiner |
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Description: Both ITU G.723.1 and G.729 provide VAD algorithm/c code. They perform well in modest SNR environment
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Size: 120832 |
Author: greatwiner |
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Description: ITU-T G.729 Source codeITU-T G.729 Annex B ANSI-C Source CodeVersion 1.4 Last modified: November, 2000 */TITLE-----Fixed-point description of Recommendation G.729 with ANNEX BCoding of Speech at 8 kbit/s using Conjugate-StructureAlgebraic-Code-Excited Linear-Prediction (CS-ACELP) withVoice Activity Decision(VAD), Discontinuous Transmission(DTX), and Comfort Noise Generation(CNG).SOFTWARE AND INTELLECTUAL PROPERTY----------------------------------This software package is provided as part of ITU-T Recommendation G.729B.Copyright (c) 1996, AT&T, France Telecom, Lucent Technologies, NTT, Rockwell International, Universite de Sherbrooke.All rights reserved.The copy of the source C code, version 1.4, is given under Copyright of the authors, only for the purpose of establishing the specification of a codec.VERSION-------This is version 1.4.-ITU-T G.729 Source codeITU-T G.729 Annex B ANSI-C Source CodeVersion 1.4 Last modified: November, 2000*/TITLE-----Fixed-point description of Recommendation G.729 with ANNEX BCoding of Speech at 8 kbit/s using Conjugate-StructureAlgebraic-Code-Excited Linear-Prediction (CS-ACELP) withVoice Activity Decision(VAD), Discontinuous Transmission(DTX), and Comfort Noise Generation(CNG).SOFTWARE AND INTELLECTUAL PROPERTY----------------------------------This software package is provided as part of ITU-T Recommendation G.729B.Copyright (c) 1996, AT&T, France Telecom, Lucent Technologies, NTT, Rockwell International, Universite de Sherbrooke.All rights reserved.The copy of the source C code, version 1.4, is given under Copyright of the authors, only for the purpose of establishing the specification of a codec.VERSION-------This is version 1.4.
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Size: 115712 |
Author: 丁一 |
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Description: ITU-T G.729 Software Package Release 2 (November 2006)
ITU-T G.729 Annex B ANSI-C Source Code
Version 1.3 Last modified: August 1997
Copyright (c) 1996, France Telecom, Rockwell International,
Universite de Sherbrooke.
All rights reserved.
#include <stdio.h>
#include typedef.h
#include ld8k.h
#include basic_op.h
#include oper_32b.h
#include tab_ld8k.h
#include vad.h
#include dtx.h
#include tab_dtx.h - ITU-T G.729 Software Package Release 2 (November 2006)
ITU-T G.729 Annex B ANSI-C Source Code
Version 1.3 Last modified: August 1997
Copyright (c) 1996, France Telecom, Rockwell International,
Universite de Sherbrooke.
All rights reserved.
#include <stdio.h>
#include typedef.h
#include ld8k.h
#include basic_op.h
#include oper_32b.h
#include tab_ld8k.h
#include vad.h
#include dtx.h
#include tab_dtx.h
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Size: 1185792 |
Author: dzdespe |
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