SE0400997D0 - Efficient coding of multi-channel audio - Google Patents
Efficient coding of multi-channel audioInfo
- Publication number
- SE0400997D0 SE0400997D0 SE0400997A SE0400997A SE0400997D0 SE 0400997 D0 SE0400997 D0 SE 0400997D0 SE 0400997 A SE0400997 A SE 0400997A SE 0400997 A SE0400997 A SE 0400997A SE 0400997 D0 SE0400997 D0 SE 0400997D0
- Authority
- SE
- Sweden
- Prior art keywords
- parameter information
- direction parameter
- channel audio
- efficient coding
- controlled
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0400997A SE0400997D0 (sv) | 2004-04-16 | 2004-04-16 | Efficient coding of multi-channel audio |
PCT/EP2005/003950 WO2005101905A1 (en) | 2004-04-16 | 2005-04-14 | Scheme for generating a parametric representation for low-bit rate applications |
CN2005800170783A CN1957640B (zh) | 2004-04-16 | 2005-04-14 | 用于生成对低位速率应用的参数表示的方案 |
EP05730925.4A EP1745676B1 (en) | 2004-04-16 | 2005-04-14 | Scheme for generating a parametric representation for low-bit rate applications |
JP2007507759A JP4688867B2 (ja) | 2004-04-16 | 2005-04-14 | 低ビットレート用パラメトリック表現の生成方法 |
KR1020067021440A KR100855561B1 (ko) | 2004-04-16 | 2005-04-14 | 로우-비트 레이트 애플리케이션용 파라메트릭 표현을생성하는 방법 |
US11/549,939 US8194861B2 (en) | 2004-04-16 | 2006-10-16 | Scheme for generating a parametric representation for low-bit rate applications |
HK07107843.7A HK1101848A1 (en) | 2004-04-16 | 2007-07-20 | Scheme for generating a parametric representation for low-bit rate applications |
JP2010029362A JP5165707B2 (ja) | 2004-04-16 | 2010-02-12 | 低ビットレート用パラメトリック表現の生成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0400997A SE0400997D0 (sv) | 2004-04-16 | 2004-04-16 | Efficient coding of multi-channel audio |
Publications (1)
Publication Number | Publication Date |
---|---|
SE0400997D0 true SE0400997D0 (sv) | 2004-04-16 |
Family
ID=32294333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0400997A SE0400997D0 (sv) | 2004-04-16 | 2004-04-16 | Efficient coding of multi-channel audio |
Country Status (8)
Country | Link |
---|---|
US (1) | US8194861B2 (sv) |
EP (1) | EP1745676B1 (sv) |
JP (2) | JP4688867B2 (sv) |
KR (1) | KR100855561B1 (sv) |
CN (1) | CN1957640B (sv) |
HK (1) | HK1101848A1 (sv) |
SE (1) | SE0400997D0 (sv) |
WO (1) | WO2005101905A1 (sv) |
Families Citing this family (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7240001B2 (en) | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
US7460990B2 (en) | 2004-01-23 | 2008-12-02 | Microsoft Corporation | Efficient coding of digital media spectral data using wide-sense perceptual similarity |
WO2006006809A1 (en) * | 2004-07-09 | 2006-01-19 | Electronics And Telecommunications Research Institute | Method and apparatus for encoding and cecoding multi-channel audio signal using virtual source location information |
KR100663729B1 (ko) | 2004-07-09 | 2007-01-02 | 한국전자통신연구원 | 가상 음원 위치 정보를 이용한 멀티채널 오디오 신호부호화 및 복호화 방법 및 장치 |
EP1691348A1 (en) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametric joint-coding of audio sources |
US7630882B2 (en) * | 2005-07-15 | 2009-12-08 | Microsoft Corporation | Frequency segmentation to obtain bands for efficient coding of digital media |
US7562021B2 (en) * | 2005-07-15 | 2009-07-14 | Microsoft Corporation | Modification of codewords in dictionary used for efficient coding of digital media spectral data |
KR100803212B1 (ko) * | 2006-01-11 | 2008-02-14 | 삼성전자주식회사 | 스케일러블 채널 복호화 방법 및 장치 |
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US8200351B2 (en) * | 2007-01-05 | 2012-06-12 | STMicroelectronics Asia PTE., Ltd. | Low power downmix energy equalization in parametric stereo encoders |
US9015051B2 (en) | 2007-03-21 | 2015-04-21 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Reconstruction of audio channels with direction parameters indicating direction of origin |
US20080232601A1 (en) * | 2007-03-21 | 2008-09-25 | Ville Pulkki | Method and apparatus for enhancement of audio reconstruction |
US8290167B2 (en) * | 2007-03-21 | 2012-10-16 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and apparatus for conversion between multi-channel audio formats |
US8908873B2 (en) | 2007-03-21 | 2014-12-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and apparatus for conversion between multi-channel audio formats |
US8612237B2 (en) * | 2007-04-04 | 2013-12-17 | Apple Inc. | Method and apparatus for determining audio spatial quality |
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US7761290B2 (en) | 2007-06-15 | 2010-07-20 | Microsoft Corporation | Flexible frequency and time partitioning in perceptual transform coding of audio |
US8046214B2 (en) | 2007-06-22 | 2011-10-25 | Microsoft Corporation | Low complexity decoder for complex transform coding of multi-channel sound |
US7885819B2 (en) * | 2007-06-29 | 2011-02-08 | Microsoft Corporation | Bitstream syntax for multi-process audio decoding |
DE102007048973B4 (de) * | 2007-10-12 | 2010-11-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines Multikanalsignals mit einer Sprachsignalverarbeitung |
US8249883B2 (en) * | 2007-10-26 | 2012-08-21 | Microsoft Corporation | Channel extension coding for multi-channel source |
US8204235B2 (en) * | 2007-11-30 | 2012-06-19 | Pioneer Corporation | Center channel positioning apparatus |
KR101439205B1 (ko) * | 2007-12-21 | 2014-09-11 | 삼성전자주식회사 | 오디오 매트릭스 인코딩 및 디코딩 방법 및 장치 |
US9111525B1 (en) * | 2008-02-14 | 2015-08-18 | Foundation for Research and Technology—Hellas (FORTH) Institute of Computer Science (ICS) | Apparatuses, methods and systems for audio processing and transmission |
WO2009116280A1 (ja) * | 2008-03-19 | 2009-09-24 | パナソニック株式会社 | ステレオ信号符号化装置、ステレオ信号復号装置およびこれらの方法 |
KR101061128B1 (ko) * | 2008-04-16 | 2011-08-31 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 이의 장치 |
EP2111062B1 (en) * | 2008-04-16 | 2014-11-12 | LG Electronics Inc. | A method and an apparatus for processing an audio signal |
CN102007532B (zh) * | 2008-04-16 | 2013-06-19 | Lg电子株式会社 | 用于处理音频信号的方法和装置 |
KR101428487B1 (ko) * | 2008-07-11 | 2014-08-08 | 삼성전자주식회사 | 멀티 채널 부호화 및 복호화 방법 및 장치 |
JP5258967B2 (ja) * | 2008-07-15 | 2013-08-07 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号の処理方法及び装置 |
KR101171314B1 (ko) | 2008-07-15 | 2012-08-10 | 엘지전자 주식회사 | 오디오 신호의 처리 방법 및 이의 장치 |
US8023660B2 (en) | 2008-09-11 | 2011-09-20 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues |
CA2736709C (en) * | 2008-09-11 | 2016-11-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues |
MX2011006186A (es) * | 2008-12-11 | 2011-08-04 | Ten Forschung Ev Fraunhofer | Aparato para generar una señal de audio multicanal. |
US20120121091A1 (en) * | 2009-02-13 | 2012-05-17 | Nokia Corporation | Ambience coding and decoding for audio applications |
RU2011147119A (ru) * | 2009-04-21 | 2013-05-27 | Конинклейке Филипс Электроникс Н.В. | Синтез аудиосигнала |
TWI413110B (zh) | 2009-10-06 | 2013-10-21 | Dolby Int Ab | 以選擇性通道解碼的有效多通道信號處理 |
EP2346028A1 (en) * | 2009-12-17 | 2011-07-20 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal |
EP2360681A1 (en) * | 2010-01-15 | 2011-08-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information |
US20120113224A1 (en) * | 2010-11-09 | 2012-05-10 | Andy Nguyen | Determining Loudspeaker Layout Using Visual Markers |
TWI413105B (zh) | 2010-12-30 | 2013-10-21 | Ind Tech Res Inst | 多語言之文字轉語音合成系統與方法 |
EP2727381B1 (en) * | 2011-07-01 | 2022-01-26 | Dolby Laboratories Licensing Corporation | Apparatus and method for rendering audio objects |
TW202339510A (zh) * | 2011-07-01 | 2023-10-01 | 美商杜比實驗室特許公司 | 用於適應性音頻信號的產生、譯碼與呈現之系統與方法 |
JP5810903B2 (ja) * | 2011-12-27 | 2015-11-11 | 富士通株式会社 | 音声処理装置、音声処理方法及び音声処理用コンピュータプログラム |
WO2013186593A1 (en) * | 2012-06-14 | 2013-12-19 | Nokia Corporation | Audio capture apparatus |
PL2896221T3 (pl) * | 2012-09-12 | 2017-04-28 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Urządzenie do i sposób zapewniania rozszerzonych możliwości kierowanego downmixu dla 3D audio |
CN104981870B (zh) * | 2013-02-22 | 2018-03-20 | 三菱电机株式会社 | 声音增强装置 |
JP6017352B2 (ja) * | 2013-03-07 | 2016-10-26 | シャープ株式会社 | 音声信号変換装置及び方法 |
US9666198B2 (en) | 2013-05-24 | 2017-05-30 | Dolby International Ab | Reconstruction of audio scenes from a downmix |
CA3211308A1 (en) | 2013-05-24 | 2014-11-27 | Dolby International Ab | Coding of audio scenes |
EP2830051A3 (en) | 2013-07-22 | 2015-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals |
EP3044783B1 (en) | 2013-09-12 | 2017-07-19 | Dolby International AB | Audio coding |
EP3444815B1 (en) * | 2013-11-27 | 2020-01-08 | DTS, Inc. | Multiplet-based matrix mixing for high-channel count multichannel audio |
CN105981100B (zh) * | 2014-01-08 | 2020-02-28 | 杜比国际公司 | 用于改善对声场的高阶高保真度立体声响复制表示进行编码所需的边信息的编码的方法和装置 |
CN105657633A (zh) | 2014-09-04 | 2016-06-08 | 杜比实验室特许公司 | 生成针对音频对象的元数据 |
JP6620235B2 (ja) * | 2015-10-27 | 2019-12-11 | アンビディオ,インコーポレイテッド | サウンドステージ拡張のための機器及び方法 |
EP3424048A1 (en) * | 2016-03-03 | 2019-01-09 | Nokia Technologies OY | Audio signal encoder, audio signal decoder, method for encoding and method for decoding |
GB201718341D0 (en) * | 2017-11-06 | 2017-12-20 | Nokia Technologies Oy | Determination of targeted spatial audio parameters and associated spatial audio playback |
GB2572420A (en) | 2018-03-29 | 2019-10-02 | Nokia Technologies Oy | Spatial sound rendering |
GB2572650A (en) | 2018-04-06 | 2019-10-09 | Nokia Technologies Oy | Spatial audio parameters and associated spatial audio playback |
GB2574239A (en) | 2018-05-31 | 2019-12-04 | Nokia Technologies Oy | Signalling of spatial audio parameters |
GB2574667A (en) * | 2018-06-15 | 2019-12-18 | Nokia Technologies Oy | Spatial audio capture, transmission and reproduction |
GB201818959D0 (en) * | 2018-11-21 | 2019-01-09 | Nokia Technologies Oy | Ambience audio representation and associated rendering |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4251688A (en) * | 1979-01-15 | 1981-02-17 | Ana Maria Furner | Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals |
SG49883A1 (en) | 1991-01-08 | 1998-06-15 | Dolby Lab Licensing Corp | Encoder/decoder for multidimensional sound fields |
JP2985704B2 (ja) * | 1995-01-25 | 1999-12-06 | 日本ビクター株式会社 | サラウンド信号処理装置 |
US5890125A (en) * | 1997-07-16 | 1999-03-30 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method |
US6072878A (en) * | 1997-09-24 | 2000-06-06 | Sonic Solutions | Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics |
US6016473A (en) * | 1998-04-07 | 2000-01-18 | Dolby; Ray M. | Low bit-rate spatial coding method and system |
TW510143B (en) * | 1999-12-03 | 2002-11-11 | Dolby Lab Licensing Corp | Method for deriving at least three audio signals from two input audio signals |
EP1275272B1 (en) * | 2000-04-19 | 2012-11-21 | SNK Tech Investment L.L.C. | Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions |
SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
CN1647156B (zh) * | 2002-04-22 | 2010-05-26 | 皇家飞利浦电子股份有限公司 | 参数编码方法、参数编码器、用于提供音频信号的设备、解码方法、解码器、用于提供解码后的多声道音频信号的设备 |
CN1669358A (zh) * | 2002-07-16 | 2005-09-14 | 皇家飞利浦电子股份有限公司 | 音频编码 |
US20060171542A1 (en) * | 2003-03-24 | 2006-08-03 | Den Brinker Albertus C | Coding of main and side signal representing a multichannel signal |
US7394903B2 (en) * | 2004-01-20 | 2008-07-01 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal |
JP2008000001A (ja) * | 2004-09-30 | 2008-01-10 | Osaka Univ | 免疫刺激オリゴヌクレオチドおよびその医薬用途 |
JP4983109B2 (ja) * | 2006-06-23 | 2012-07-25 | オムロン株式会社 | 電波検知回路及び遊技機 |
-
2004
- 2004-04-16 SE SE0400997A patent/SE0400997D0/sv unknown
-
2005
- 2005-04-14 WO PCT/EP2005/003950 patent/WO2005101905A1/en active Application Filing
- 2005-04-14 JP JP2007507759A patent/JP4688867B2/ja active Active
- 2005-04-14 EP EP05730925.4A patent/EP1745676B1/en active Active
- 2005-04-14 CN CN2005800170783A patent/CN1957640B/zh active Active
- 2005-04-14 KR KR1020067021440A patent/KR100855561B1/ko active IP Right Grant
-
2006
- 2006-10-16 US US11/549,939 patent/US8194861B2/en active Active
-
2007
- 2007-07-20 HK HK07107843.7A patent/HK1101848A1/xx unknown
-
2010
- 2010-02-12 JP JP2010029362A patent/JP5165707B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20070127733A1 (en) | 2007-06-07 |
CN1957640B (zh) | 2011-06-29 |
KR20070001227A (ko) | 2007-01-03 |
JP4688867B2 (ja) | 2011-05-25 |
WO2005101905A1 (en) | 2005-10-27 |
JP2010154548A (ja) | 2010-07-08 |
KR100855561B1 (ko) | 2008-09-01 |
HK1101848A1 (en) | 2007-10-26 |
US8194861B2 (en) | 2012-06-05 |
EP1745676B1 (en) | 2013-06-12 |
JP5165707B2 (ja) | 2013-03-21 |
JP2007533221A (ja) | 2007-11-15 |
EP1745676A1 (en) | 2007-01-24 |
CN1957640A (zh) | 2007-05-02 |
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