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Description: 本程序是基于ACELP算法编写的语音编解码程序，里面有两个程序例子，一个是编码程序，另一个是解码程序。-This is a speech codec based on ACELP algorithm,there are two examples in it,one is the encoder,anther is decoder.
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Size: 2482176 |
Author: 吴中平 |
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Description: 一个非常好的开源音频编解码项目，支持多种音频采用频率，支持多码流，支持可变速率
Speex a free codec for free speech
Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex Project aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs. Finally, Speex is part of the GNU Project and is available under the Xiph.org variant of the BSD license-a very good open-source audio codecs, support for multiple audio frequency, multi-stream, Variable-rate support for a free Vorbis codec for free speech Vorbis i s an Open Source/Free Software patent-free Aud io compression format designed for speech. The Vorbis Project aims to lower the barrier of entry for voice applications by providing a free alte rnative to expensive proprietary speech codec s. Moreover, Vorbis is well-adapted to the Internet application s and provides useful features that are not pres ent in most other codecs. Finally, Vorbis is part of the GNU Project and is available under the Xiph.org variant of the BSD license
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Size: 546816 |
Author: 邹远富 |
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Description: G.711,G.723.1,G.726,G.729,GSM CODEC C/C++ code
-G.711, G.723.1, G.726, G.729, GSM CODEC C/C code
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Size: 547840 |
Author: 白告 |
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Description: ANSI C code for the Adaptive Multi Rate (AMR) speech codec-ANSI C code for the Adaptive Multi Rate (AMR ) speech codec
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Size: 911360 |
Author: eckuk |
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Description: GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
R99 Version 3.3.0 REL-4 Version 4.1.0 REL-5 version 5.3.0 REL-6 version 6.0.0
-GSM AMR-NB speech codec R98 Version 7.6.0 D ecember 12, 2001's R99 Version 3.3.0 REL-4 Version 4.1.0 REL- 5 version 5.3.0 REL-6 version 6
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Size: 832512 |
Author: 朱平 |
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Description: G729信源编译码C程序，实现ACELP语音编译码，希望对同仁有用-G729 codec C source program, realize ACELP speech codec, in the hope that useful Tongren
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Size: 87040 |
Author: gaocheng |
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Description: 3Gpp规范的AMR语音编解码器c代码，为定点的实现的算法。-3GPP standardized AMR speech codec c code, for the realization of fixed-point algorithms.
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Size: 754688 |
Author: 温安君 |
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Description: 3rd Generation Partnership Project
Technical Specification Group Services and System Aspects
Mandatory speech codec speech processing functions
Adaptive Multi-Rate (AMR) speech codec
Voice Activity Detector (VAD
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Size: 104448 |
Author: fanren |
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Description: 用于GSM的增强全速率EFR的语音编码器标准C源码-For the GSM Enhanced Full Rate EFR speech coding standard C source
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Size: 372736 |
Author: huangtao |
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Description: gsm程序，语音编解码的实现，gsm-1.0-pl6，具体内容没有仔细研究-gsm procedures, the realization of speech codec, gsm-1.0-pl6, did not examine the specific content of
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Size: 76800 |
Author: 李琪珞 |
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Description: ADPCM语音编码算法， ADPCM语音编码算法，-ADPCM speech coding algorithms, ADPCM speech coding algorithms,
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Size: 230400 |
Author: weili |
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Description: ITU-T G.711语音编解码程序，用于有线电话的语音压缩-ITU-T G.711 speech codec procedure for fixed line telephone voice compression
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Size: 238592 |
Author: 刘文旭 |
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Description: G.728 is an ITU-T ADPCM speech codec standard covering the transmission of voice at rates of 16, 24, 32, and 40 kbit/s. It was introduced to supersede both G.721, which covered ADPCM at 32 kbit/s, and G.723, which described ADPCM for 24 and 40 kbit/s. G.726 also introduced a new 16 kbit/s rate. The four bit rates associated with G.726 are often referred to by the bit size of a sample, which are 2-bits, 3-bits, 4-bits, and 5-bits respectively.
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Size: 50176 |
Author: chu |
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Description: G.729 is an ITU-T ADPCM speech codec standard covering the transmission of voice at rates of 16, 24, 32, and 40 kbit/s. It was introduced to supersede both G.721, which covered ADPCM at 32 kbit/s, and G.723, which described ADPCM for 24 and 40 kbit/s. G.726 also introduced a new 16 kbit/s rate. The four bit rates associated with G.726 are often referred to by the bit size of a sample, which are 2-bits, 3-bits, 4-bits, and 5-bits respectively.
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Size: 976896 |
Author: chu |
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Description: 语音编解码算法G.723.1的C语言算法原代码，附带一些必要的注释-G.723.1 speech codec algorithm of the C language algorithm for the original code, with some necessary notes
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Size: 107520 |
Author: luo guocheng |
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Description: Speex是一套开源的专门压缩声音的库，压缩的性能非常高，常用在VoIP或者其它网络程序中。Speex声称自己是不受任何专利限制，并授权根据修订后的BSD许可证发布。它可以用来与Ogg容器格式或直接在UDP / RTP协议下传输。
这份是Speex的编码手册英文版，下面的地址是维基百科中关于Speex的介绍: http://en.wikipedia.org/wiki/Speex-Speex is a free software speech codec that may be used on VoIP applications and podcasts. Speex claims to be free of any patent restrictions and is licensed under the revised (3-clause) BSD license. It may be used with the Ogg container format or directly transmitted over UDP/RTP.
The Speex designers see their project as complementary to the Vorbis general-purpose audio compression project.
Speex is a lossy format, meaning quality is permanently degraded to reduce file size.
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Size: 410624 |
Author: 瞿志超 |
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Description: A Float Model of CELP
Speech Codec in MATLAB
Including:
• CELP speech codec
• CELP encoder
Frame Analysis
Sub-frame analysis
• CELP decoder
-A Float Model of CELP
Speech Codec in MATLAB
Including:
• CELP speech codec
• CELP encoder
Frame Analysis
Sub-frame analysis
• CELP decoder
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Size: 231424 |
Author: Vishal |
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Description: Abstract - In this paper, proposed an efficient method of
converting speech codec formats between G.723.1 and
G.729А. The proposed method is composed of four steps:
LSP conversion, pitch conversion, adaptive codebook
search and fixed codebook search. Subjective results
shown that the proposed method has shorter delay than
classical tandem method.- Abstract- In this paper, proposed an efficient method of
converting speech codec formats between G.723.1 and
G.729А. The proposed method is composed of four steps:
LSP conversion, pitch conversion, adaptive codebook
search and fixed codebook search. Subjective results
shown that the proposed method has shorter delay than
classical tandem method.
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Size: 501760 |
Author: 阿铁 |
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Description: g.726语音压缩编解码源程序 亲测可用-G. 726 speech codec source program pro is available
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Size: 402432 |
Author: liangge |
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Description: Real-Time Implementation of G.723.1 Speech Codec on a 16-bit DSP
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Size: 105472 |
Author: Kien |
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