DE602004005020D1 - Audiosignalsynthese - Google Patents

Audiosignalsynthese

Info

Publication number
DE602004005020D1
DE602004005020D1 DE602004005020T DE602004005020T DE602004005020D1 DE 602004005020 D1 DE602004005020 D1 DE 602004005020D1 DE 602004005020 T DE602004005020 T DE 602004005020T DE 602004005020 T DE602004005020 T DE 602004005020T DE 602004005020 D1 DE602004005020 D1 DE 602004005020D1
Authority
DE
Germany
Prior art keywords
signal
transformed
sub
band
audio signal
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.)
Expired - Lifetime
Application number
DE602004005020T
Other languages
English (en)
Other versions
DE602004005020T2 (de
Inventor
Erik G Schuijers
Middelink Marc W Klein
Arnoldus W Oomen
De Kerkhof Leon M Van
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33300979&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE602004005020(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602004005020D1 publication Critical patent/DE602004005020D1/de
Application granted granted Critical
Publication of DE602004005020T2 publication Critical patent/DE602004005020T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DE602004005020T 2003-04-17 2004-04-14 Audiosignalsynthese Expired - Lifetime DE602004005020T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP03076134 2003-04-17
EP03076134 2003-04-17
EP03076166 2003-04-18
EP03076166 2003-04-18
PCT/IB2004/050436 WO2004093495A1 (en) 2003-04-17 2004-04-14 Audio signal synthesis

Publications (2)

Publication Number Publication Date
DE602004005020D1 true DE602004005020D1 (de) 2007-04-12
DE602004005020T2 DE602004005020T2 (de) 2007-10-31

Family

ID=33300979

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004005020T Expired - Lifetime DE602004005020T2 (de) 2003-04-17 2004-04-14 Audiosignalsynthese

Country Status (12)

Country Link
US (1) US8311809B2 (de)
EP (1) EP1618763B1 (de)
JP (1) JP4834539B2 (de)
KR (2) KR101200776B1 (de)
CN (2) CN1774956B (de)
AT (1) ATE355590T1 (de)
BR (1) BRPI0409337A (de)
DE (1) DE602004005020T2 (de)
ES (1) ES2281795T3 (de)
PL (1) PL1618763T3 (de)
RU (1) RU2005135650A (de)
WO (1) WO2004093495A1 (de)

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US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
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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
CA2705968C (en) 2007-11-21 2016-01-26 Lg Electronics Inc. A method and an apparatus for processing a signal
EP2212883B1 (de) * 2007-11-27 2012-06-06 Nokia Corporation Codierer
AU2008339211B2 (en) 2007-12-18 2011-06-23 Lg Electronics Inc. A method and an apparatus for processing an audio signal
EP2260487B1 (de) * 2008-03-04 2019-08-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mischung von eingabedatenströmen und erzeugung eines ausgangsdatenstroms daraus
EP2124486A1 (de) * 2008-05-13 2009-11-25 Clemens Par Winkelabhängig operierende Vorrichtung oder Methodik zur Gewinnung eines pseudostereophonen Audiosignals
EP2144230A1 (de) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierungs-/Audiodekodierungsschema geringer Bitrate mit kaskadierten Schaltvorrichtungen
MX2011000369A (es) * 2008-07-11 2011-07-29 Ten Forschung Ev Fraunhofer Codificador y decodificador de audio para codificar marcos de señales de audio muestreadas.
MY152252A (en) * 2008-07-11 2014-09-15 Fraunhofer Ges Forschung Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme
EP2154911A1 (de) * 2008-08-13 2010-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Bestimmung eines räumlichen Mehrkanalausgangsaudiosignals
TWI419148B (zh) * 2008-10-08 2013-12-11 Fraunhofer Ges Forschung 多解析度切換音訊編碼／解碼方案
US9275650B2 (en) 2010-06-14 2016-03-01 Panasonic Corporation Hybrid audio encoder and hybrid audio decoder which perform coding or decoding while switching between different codecs
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
BR122021003887B1 (pt) 2010-08-12 2021-08-24 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V. Reamostrar sinais de saída de codecs de áudio com base em qmf
EP2523473A1 (de) * 2011-05-11 2012-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Erzeugung eines Ausgabesignals mithilfe einer Dekompositionsvorrichtung
BR112014009700A2 (pt) * 2011-10-28 2017-05-09 Koninklijke Philips Nv dispositivo para o processamento de um sinal representativo dos sons cardíacos, e método para o processamento de um sinal sonoro cardíaco de um indivíduo campo da invenção
EP2704142B1 (de) * 2012-08-27 2015-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Wiedergabe eines Audiosignals, Vorrichtung und Verfahren zur Erzeugung eines codierten Audiosignals, Computerprogramm und codiertes Audiosignal
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EP2830061A1 (de) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Codierung und Decodierung eines codierten Audiosignals unter Verwendung von zeitlicher Rausch-/Patch-Formung
KR102329309B1 (ko) 2013-09-12 2021-11-19 돌비 인터네셔널 에이비 Qmf 기반 처리 데이터의 시간 정렬
WO2015041477A1 (ko) * 2013-09-17 2015-03-26 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
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KR102144332B1 (ko) * 2014-07-01 2020-08-13 한국전자통신연구원 다채널 오디오 신호 처리 방법 및 장치

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Also Published As

Publication number Publication date
JP2006523859A (ja) 2006-10-19
CN1774956A (zh) 2006-05-17
KR101200776B1 (ko) 2012-11-13
CN1774956B (zh) 2011-10-05
CN1774957A (zh) 2006-05-17
EP1618763B1 (de) 2007-02-28
JP4834539B2 (ja) 2011-12-14
US20070112559A1 (en) 2007-05-17
RU2005135650A (ru) 2006-03-20
EP1618763A1 (de) 2006-01-25
KR20050122267A (ko) 2005-12-28
BRPI0409337A (pt) 2006-04-25
ES2281795T3 (es) 2007-10-01
PL1618763T3 (pl) 2007-07-31
US8311809B2 (en) 2012-11-13
KR101169596B1 (ko) 2012-07-30
ATE355590T1 (de) 2006-03-15
DE602004005020T2 (de) 2007-10-31
KR20110044281A (ko) 2011-04-28
WO2004093495A1 (en) 2004-10-28

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