ATE368921T1 - Codierung von audiosignalen - Google Patents

Codierung von audiosignalen

Info

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
Application number
AT04770014T
Other languages
English (en)
Inventor
Dirk Breebaart
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE368921T1 publication Critical patent/ATE368921T1/de

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
    • G10L19/02—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)
AT04770014T 2003-09-29 2004-09-16 Codierung von audiosignalen ATE368921T1 (de)

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)

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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
ATE526797T1 (de) * 2004-07-14 2011-10-15 Koninkl Philips Electronics Nv Verfahren, vorrichtung, kodierer, dekodierer und audiosystem
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
ES2433316T3 (es) * 2005-07-19 2013-12-10 Koninklijke Philips N.V. Generación de señales de audio de multiples canales
EP1999747B1 (de) 2006-03-29 2016-10-12 Koninklijke Philips N.V. Dekodierung von audiosignalen
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
DE602007013626D1 (de) * 2007-06-01 2011-05-12 Univ Graz Tech Gemeinsame positions-tonhöhenschätzung akustischer quellen zu ihrer verfolgung und trennung
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
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
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
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
ES2553398T3 (es) * 2010-11-03 2015-12-09 Huawei Technologies Co., Ltd. Codificador paramétrico para codificar una señal de audio multicanal
EP2638541A1 (de) * 2010-11-10 2013-09-18 Koninklijke Philips Electronics N.V. Verfahren und vorrichtung zur kalkulation eines musters bei einem signal
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

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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

Also Published As

Publication number Publication date
US20070036360A1 (en) 2007-02-15
ES2291939T3 (es) 2008-03-01
US7720231B2 (en) 2010-05-18
KR20060090984A (ko) 2006-08-17
EP1671316A1 (de) 2006-06-21
WO2005031704A1 (en) 2005-04-07
EP1671316B1 (de) 2007-08-01
CN1860526B (zh) 2010-06-16
CN1860526A (zh) 2006-11-08
DE602004007945T2 (de) 2008-05-15
DE602004007945D1 (de) 2007-09-13
JP2007507726A (ja) 2007-03-29

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