ATE368921T1 - Codierung von audiosignalen - Google Patents
Codierung von audiosignalenInfo
- Publication number
- ATE368921T1 ATE368921T1 AT04770014T AT04770014T ATE368921T1 AT E368921 T1 ATE368921 T1 AT E368921T1 AT 04770014 T AT04770014 T AT 04770014T AT 04770014 T AT04770014 T AT 04770014T AT E368921 T1 ATE368921 T1 AT E368921T1
- Authority
- AT
- Austria
- Prior art keywords
- complex
- frequency domain
- audio signals
- coding
- value
- Prior art date
Links
- 238000005314 correlation function Methods 0.000 abstract 2
- 230000005236 sound signal Effects 0.000 abstract 2
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
- G10L19/02—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
-
- 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
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103591 | 2003-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE368921T1 true ATE368921T1 (de) | 2007-08-15 |
Family
ID=34384664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT04770014T ATE368921T1 (de) | 2003-09-29 | 2004-09-16 | Codierung von audiosignalen |
Country Status (9)
Country | Link |
---|---|
US (1) | US7720231B2 (de) |
EP (1) | EP1671316B1 (de) |
JP (1) | JP2007507726A (de) |
KR (1) | KR20060090984A (de) |
CN (1) | CN1860526B (de) |
AT (1) | ATE368921T1 (de) |
DE (1) | DE602004007945T2 (de) |
ES (1) | ES2291939T3 (de) |
WO (1) | WO2005031704A1 (de) |
Families Citing this family (35)
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 |
PL1769655T3 (pl) * | 2004-07-14 | 2012-05-31 | Koninl Philips Electronics Nv | Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio |
KR100657916B1 (ko) * | 2004-12-01 | 2006-12-14 | 삼성전자주식회사 | 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법 |
EP1691348A1 (de) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametrische kombinierte Kodierung von Audio-Quellen |
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 |
CN101248483B (zh) * | 2005-07-19 | 2011-11-23 | 皇家飞利浦电子股份有限公司 | 多声道音频信号的生成 |
CN101484936B (zh) | 2006-03-29 | 2012-02-15 | 皇家飞利浦电子股份有限公司 | 音频解码 |
US8346546B2 (en) * | 2006-08-15 | 2013-01-01 | Broadcom Corporation | Packet loss concealment based on forced waveform alignment after packet loss |
JP4940888B2 (ja) * | 2006-10-23 | 2012-05-30 | ソニー株式会社 | オーディオ信号伸張圧縮装置及び方法 |
CN101308655B (zh) * | 2007-05-16 | 2011-07-06 | 展讯通信(上海)有限公司 | 一种音频编解码方法与装置 |
US8107321B2 (en) * | 2007-06-01 | 2012-01-31 | Technische Universitat Graz And Forschungsholding Tu Graz Gmbh | Joint position-pitch estimation of acoustic sources for their tracking and separation |
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 |
GB2453117B (en) * | 2007-09-25 | 2012-05-23 | Motorola Mobility Inc | Apparatus and method for encoding a multi channel audio signal |
US8249883B2 (en) * | 2007-10-26 | 2012-08-21 | Microsoft Corporation | Channel extension coding for multi-channel source |
US8296136B2 (en) * | 2007-11-15 | 2012-10-23 | Qnx Software Systems Limited | Dynamic controller for improving speech intelligibility |
EP2215627B1 (de) * | 2007-11-27 | 2012-09-19 | Nokia Corporation | Codierer |
CN101188878B (zh) * | 2007-12-05 | 2010-06-02 | 武汉大学 | 立体声音频信号的空间参数量化及熵编码方法和所用*** |
EP2144229A1 (de) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Effiziente Nutzung von Phaseninformationen beim Audio-Codieren und -Decodieren |
CN101673545B (zh) * | 2008-09-12 | 2011-11-16 | 华为技术有限公司 | 一种编解码方法及装置 |
JP5293832B2 (ja) * | 2008-11-28 | 2013-09-18 | 富士通株式会社 | 位相雑音の統計的特性をモニタする装置および方法、並びにコヒーレント光通信受信器 |
CN101848412B (zh) * | 2009-03-25 | 2012-03-21 | 华为技术有限公司 | 通道间延迟估计的方法及其装置和编码器 |
EP2476113B1 (de) * | 2009-09-11 | 2014-08-13 | Nokia Corporation | Verfahren, vorrichtung und computerprogrammprodukt für audiocodierung |
CN102157152B (zh) | 2010-02-12 | 2014-04-30 | 华为技术有限公司 | 立体声编码的方法、装置 |
CN102157149B (zh) * | 2010-02-12 | 2012-08-08 | 华为技术有限公司 | 立体声信号下混方法、编解码装置和编解码*** |
CN102844808B (zh) * | 2010-11-03 | 2016-01-13 | 华为技术有限公司 | 用于编码多通道音频信号的参数编码器 |
RU2587652C2 (ru) * | 2010-11-10 | 2016-06-20 | Конинклейке Филипс Электроникс Н.В. | Способ и устройство для оценки структуры в сигнале |
EP2528358A1 (de) * | 2011-05-23 | 2012-11-28 | Oticon A/S | Verfahren zur Identifizierung eines drahtlosen Kommunikationskanals in einem Tonsystem |
US8666753B2 (en) * | 2011-12-12 | 2014-03-04 | Motorola Mobility Llc | Apparatus and method for audio encoding |
WO2013149671A1 (en) * | 2012-04-05 | 2013-10-10 | Huawei Technologies Co., Ltd. | Multi-channel audio encoder and method for encoding a multi-channel audio signal |
CN107358960B (zh) * | 2016-05-10 | 2021-10-26 | 华为技术有限公司 | 多声道信号的编码方法和编码器 |
GB2582749A (en) * | 2019-03-28 | 2020-10-07 | Nokia Technologies Oy | Determination of the significance of spatial audio parameters and associated encoding |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2729246A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
TW317051B (de) * | 1996-02-15 | 1997-10-01 | Philips Electronics Nv | |
US6697491B1 (en) * | 1996-07-19 | 2004-02-24 | Harman International Industries, Incorporated | 5-2-5 matrix encoder and decoder system |
US6754630B2 (en) * | 1998-11-13 | 2004-06-22 | Qualcomm, Inc. | Synthesis of speech from pitch prototype waveforms by time-synchronous waveform interpolation |
US6823018B1 (en) * | 1999-07-28 | 2004-11-23 | At&T Corp. | Multiple description coding communication system |
US6728669B1 (en) * | 2000-08-07 | 2004-04-27 | Lucent Technologies Inc. | Relative pulse position in celp vocoding |
US7116787B2 (en) * | 2001-05-04 | 2006-10-03 | Agere Systems Inc. | Perceptual synthesis of auditory scenes |
-
2004
- 2004-09-16 WO PCT/IB2004/051775 patent/WO2005031704A1/en active IP Right Grant
- 2004-09-16 US US10/573,310 patent/US7720231B2/en active Active
- 2004-09-16 EP EP04770014A patent/EP1671316B1/de active Active
- 2004-09-16 ES ES04770014T patent/ES2291939T3/es active Active
- 2004-09-16 CN CN2004800281847A patent/CN1860526B/zh active Active
- 2004-09-16 AT AT04770014T patent/ATE368921T1/de not_active IP Right Cessation
- 2004-09-16 KR KR1020067006093A patent/KR20060090984A/ko not_active Application Discontinuation
- 2004-09-16 DE DE602004007945T patent/DE602004007945T2/de active Active
- 2004-09-16 JP JP2006527534A patent/JP2007507726A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2007507726A (ja) | 2007-03-29 |
DE602004007945T2 (de) | 2008-05-15 |
ES2291939T3 (es) | 2008-03-01 |
US7720231B2 (en) | 2010-05-18 |
EP1671316A1 (de) | 2006-06-21 |
DE602004007945D1 (de) | 2007-09-13 |
CN1860526B (zh) | 2010-06-16 |
CN1860526A (zh) | 2006-11-08 |
WO2005031704A1 (en) | 2005-04-07 |
EP1671316B1 (de) | 2007-08-01 |
KR20060090984A (ko) | 2006-08-17 |
US20070036360A1 (en) | 2007-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |