DE602004007945D1 - Codierung von audiosignalen - Google Patents

Codierung von audiosignalen

Info

Publication number
DE602004007945D1
DE602004007945D1 DE602004007945T DE602004007945T DE602004007945D1 DE 602004007945 D1 DE602004007945 D1 DE 602004007945D1 DE 602004007945 T DE602004007945 T DE 602004007945T DE 602004007945 T DE602004007945 T DE 602004007945T DE 602004007945 D1 DE602004007945 D1 DE 602004007945D1
Authority
DE
Germany
Prior art keywords
complex
frequency domain
audio signals
coding
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602004007945T
Other languages
English (en)
Other versions
DE602004007945T2 (de
Inventor
Dirk J Breebaart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602004007945D1 publication Critical patent/DE602004007945D1/de
Application granted granted Critical
Publication of DE602004007945T2 publication Critical patent/DE602004007945T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
DE602004007945T 2003-09-29 2004-09-16 Codierung von audiosignalen Active DE602004007945T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03103591 2003-09-29
EP03103591 2003-09-29
PCT/IB2004/051775 WO2005031704A1 (en) 2003-09-29 2004-09-16 Encoding audio signals

Publications (2)

Publication Number Publication Date
DE602004007945D1 true DE602004007945D1 (de) 2007-09-13
DE602004007945T2 DE602004007945T2 (de) 2008-05-15

Family

ID=34384664

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004007945T Active DE602004007945T2 (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)

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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
PL1905006T3 (pl) * 2005-07-19 2014-02-28 Koninl Philips Electronics Nv Generowanie wielokanałowych sygnałów audio
BRPI0709235B8 (pt) 2006-03-29 2019-10-29 Dolby Int Ab decodificador de áudio, método de decodificação de áudio, receptor para receber um sinal de n canais, sistema de transmissão para transmitir um sinal de áudio, método para receber um sinal de áudio, método para transmitir e receber um sinal de áudio, mídia de armazenamento legível por computador, e, dispositivo de reprodução de áudio
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
WO2009068084A1 (en) * 2007-11-27 2009-06-04 Nokia Corporation An encoder
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系统
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
CN102100024B (zh) * 2008-11-28 2014-03-26 富士通株式会社 相位噪声统计特性监控装置和方法、相干光通信接收机
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
US8848925B2 (en) * 2009-09-11 2014-09-30 Nokia Corporation Method, apparatus and computer program product for audio coding
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系统
EP2633520B1 (de) * 2010-11-03 2015-09-02 Huawei Technologies Co., Ltd. Parametrischer kodierer zur kodierung eines mehrkanal-audiosignals
BR112013011312A2 (pt) * 2010-11-10 2019-09-24 Koninl Philips Electronics Nv método para estimar um padrão em um sinal (s) tendo um componente periódico, semiperiódico ou virtualmente periódico, dispositivo para estimar um padrão em um sinal (s) tendo um componente periódico, semiperiódico ou virtualmente periódico e programa de computador
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
KR101662681B1 (ko) * 2012-04-05 2016-10-05 후아웨이 테크놀러지 컴퍼니 리미티드 멀티채널 오디오 인코더 및 멀티채널 오디오 신호 인코딩 방법
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

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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
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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

Also Published As

Publication number Publication date
CN1860526B (zh) 2010-06-16
US20070036360A1 (en) 2007-02-15
EP1671316B1 (de) 2007-08-01
US7720231B2 (en) 2010-05-18
WO2005031704A1 (en) 2005-04-07
CN1860526A (zh) 2006-11-08
ATE368921T1 (de) 2007-08-15
ES2291939T3 (es) 2008-03-01
KR20060090984A (ko) 2006-08-17
DE602004007945T2 (de) 2008-05-15
JP2007507726A (ja) 2007-03-29
EP1671316A1 (de) 2006-06-21

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