CN1495705A - 多通道声码器 - Google Patents
多通道声码器 Download PDFInfo
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- CN1495705A CN1495705A CNA031569277A CN03156927A CN1495705A CN 1495705 A CN1495705 A CN 1495705A CN A031569277 A CNA031569277 A CN A031569277A CN 03156927 A CN03156927 A CN 03156927A CN 1495705 A CN1495705 A CN 1495705A
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Images
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
- G10L19/0208—Subband vocoders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
Abstract
Description
Claims (5)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US789695P | 1995-12-01 | 1995-12-01 | |
US60/007,896 | 1995-12-01 | ||
US08/642,254 | 1996-05-02 | ||
US08/642,254 US5956674A (en) | 1995-12-01 | 1996-05-02 | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96199832A Division CN1132151C (zh) | 1995-12-01 | 1996-11-21 | 多通道声解码器 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006100817855A Division CN1848241B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN200610081786XA Division CN1848242B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1495705A true CN1495705A (zh) | 2004-05-12 |
CN1303583C CN1303583C (zh) | 2007-03-07 |
Family
ID=26677495
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031569277A Expired - Lifetime CN1303583C (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN2010101265919A Expired - Lifetime CN101872618B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN2006100817855A Expired - Lifetime CN1848241B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN96199832A Expired - Lifetime CN1132151C (zh) | 1995-12-01 | 1996-11-21 | 多通道声解码器 |
CN200610081786XA Expired - Lifetime CN1848242B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101265919A Expired - Lifetime CN101872618B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN2006100817855A Expired - Lifetime CN1848241B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
CN96199832A Expired - Lifetime CN1132151C (zh) | 1995-12-01 | 1996-11-21 | 多通道声解码器 |
CN200610081786XA Expired - Lifetime CN1848242B (zh) | 1995-12-01 | 1996-11-21 | 多通道音频编码器 |
Country Status (18)
Country | Link |
---|---|
US (4) | US5956674A (zh) |
EP (1) | EP0864146B1 (zh) |
JP (1) | JP4174072B2 (zh) |
KR (1) | KR100277819B1 (zh) |
CN (5) | CN1303583C (zh) |
AT (1) | ATE279770T1 (zh) |
AU (1) | AU705194B2 (zh) |
BR (1) | BR9611852A (zh) |
CA (2) | CA2238026C (zh) |
DE (1) | DE69633633T2 (zh) |
DK (1) | DK0864146T3 (zh) |
EA (1) | EA001087B1 (zh) |
ES (1) | ES2232842T3 (zh) |
HK (4) | HK1015510A1 (zh) |
MX (1) | MX9804320A (zh) |
PL (3) | PL183092B1 (zh) |
PT (1) | PT864146E (zh) |
WO (1) | WO1997021211A1 (zh) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101809653A (zh) * | 2007-12-06 | 2010-08-18 | Lg电子株式会社 | 用于处理音频信号的方法和装置 |
CN101185119B (zh) * | 2005-05-26 | 2011-07-27 | Lg电子株式会社 | 解码音频信号的方法和装置 |
CN101243496B (zh) * | 2005-07-11 | 2011-12-07 | Lg电子株式会社 | 处理音频信号的装置和方法 |
US8160258B2 (en) | 2006-02-07 | 2012-04-17 | Lg Electronics Inc. | Apparatus and method for encoding/decoding signal |
CN101124740B (zh) * | 2005-02-23 | 2012-05-30 | 艾利森电话股份有限公司 | 多声道音频信号编码和解码的方法和装置和音频传送系统 |
US8208641B2 (en) | 2006-01-19 | 2012-06-26 | Lg Electronics Inc. | Method and apparatus for processing a media signal |
CN1822508B (zh) * | 2005-01-19 | 2012-07-18 | 三星电子株式会社 | 对数字信号进行编码和解码的方法和设备 |
CN101133680B (zh) * | 2005-03-04 | 2012-08-08 | 弗劳恩霍夫应用研究促进协会 | 用于产生已编码立体声信号的设备及方法 |
CN103250207A (zh) * | 2010-11-05 | 2013-08-14 | 汤姆逊许可公司 | 高阶高保真度立体声响复制音频数据的数据结构 |
US8543386B2 (en) | 2005-05-26 | 2013-09-24 | Lg Electronics Inc. | Method and apparatus for decoding an audio signal |
CN102177426B (zh) * | 2008-10-08 | 2014-11-05 | 弗兰霍菲尔运输应用研究公司 | 多分辨率切换音频编码/解码方案 |
CN102833538B (zh) * | 2004-06-27 | 2015-04-22 | 苹果公司 | 多通路视频编码 |
US9043215B2 (en) | 2008-10-08 | 2015-05-26 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Multi-resolution switched audio encoding/decoding scheme |
CN105144752A (zh) * | 2013-04-29 | 2015-12-09 | 汤姆逊许可公司 | 对更高阶高保真度立体声响复制表示进行压缩和解压缩的方法和装置 |
US9595267B2 (en) | 2005-05-26 | 2017-03-14 | Lg Electronics Inc. | Method and apparatus for decoding an audio signal |
CN107430862A (zh) * | 2015-02-27 | 2017-12-01 | 奥罗技术公司 | 数字数据集合的编码和解码 |
CN111261194A (zh) * | 2020-04-29 | 2020-06-09 | 浙江百应科技有限公司 | 一种基于pcm技术的音量分析方法 |
CN111341303A (zh) * | 2018-12-19 | 2020-06-26 | 北京猎户星空科技有限公司 | 一种声学模型的训练方法及装置、语音识别方法及装置 |
CN113485190A (zh) * | 2021-07-13 | 2021-10-08 | 西安电子科技大学 | 一种多通道数据采集系统及采集方法 |
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WO1997029549A1 (fr) * | 1996-02-08 | 1997-08-14 | Matsushita Electric Industrial Co., Ltd. | Codeur, decodeur, codeur-decodeur et support d'enregistrement de signal audio large bande |
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JP3622365B2 (ja) * | 1996-09-26 | 2005-02-23 | ヤマハ株式会社 | 音声符号化伝送方式 |
JPH10271082A (ja) * | 1997-03-21 | 1998-10-09 | Mitsubishi Electric Corp | 音声データ復号装置 |
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CA2262197A1 (en) * | 1998-02-18 | 1999-08-18 | Henrietta L. Galiana | Automatic segmentation of nystagmus or other complex curves |
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