DE69915400D1 - Vorrichtung zur Kodierung und Dekodierung von Audiosignalen - Google Patents

Vorrichtung zur Kodierung und Dekodierung von Audiosignalen

Info

Publication number
DE69915400D1
DE69915400D1 DE69915400T DE69915400T DE69915400D1 DE 69915400 D1 DE69915400 D1 DE 69915400D1 DE 69915400 T DE69915400 T DE 69915400T DE 69915400 T DE69915400 T DE 69915400T DE 69915400 D1 DE69915400 D1 DE 69915400D1
Authority
DE
Germany
Prior art keywords
coding
audio signals
decoding audio
decoding
signals
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
DE69915400T
Other languages
English (en)
Other versions
DE69915400T2 (de
Inventor
Tomokazu Ishikawa
Mineo Tsushima
Takeshi Norimatsu
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69915400D1 publication Critical patent/DE69915400D1/de
Publication of DE69915400T2 publication Critical patent/DE69915400T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • 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
    • G10L19/0212—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 using orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69915400T 1998-03-11 1999-03-11 Vorrichtung zur Kodierung und Dekodierung von Audiosignalen Expired - Lifetime DE69915400T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5940398 1998-03-11
JP5940398 1998-03-11

Publications (2)

Publication Number Publication Date
DE69915400D1 true DE69915400D1 (de) 2004-04-15
DE69915400T2 DE69915400T2 (de) 2004-08-05

Family

ID=13112289

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69915400T Expired - Lifetime DE69915400T2 (de) 1998-03-11 1999-03-11 Vorrichtung zur Kodierung und Dekodierung von Audiosignalen

Country Status (6)

Country Link
US (1) US6871106B1 (de)
EP (1) EP0942411B1 (de)
KR (1) KR100304092B1 (de)
CN (1) CN1131507C (de)
DE (1) DE69915400T2 (de)
ES (1) ES2216367T3 (de)

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FR2791167B1 (fr) * 1999-03-17 2003-01-10 Matra Nortel Communications Procedes de codage, de decodage et de transcodage audio
KR100347752B1 (ko) * 2000-01-25 2002-08-09 주식회사 하이닉스반도체 이동통신 시스템에서 객관적 음질 평가 장치 및 그 방법
KR100708092B1 (ko) * 2000-06-15 2007-04-16 삼성전자주식회사 가변 샘플링 레이트를 이용한 녹음 및/또는 재생 장치 및그 방법
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
WO2003046891A1 (en) 2001-11-29 2003-06-05 Coding Technologies Ab Methods for improving high frequency reconstruction
WO2003091989A1 (en) * 2002-04-26 2003-11-06 Matsushita Electric Industrial Co., Ltd. Coding device, decoding device, coding method, and decoding method
JP3881943B2 (ja) 2002-09-06 2007-02-14 松下電器産業株式会社 音響符号化装置及び音響符号化方法
SE0202770D0 (sv) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
KR100513729B1 (ko) * 2003-07-03 2005-09-08 삼성전자주식회사 계층적인 대역폭 구조를 갖는 음성 압축 및 복원 장치와그 방법
US7693707B2 (en) 2003-12-26 2010-04-06 Pansonic Corporation Voice/musical sound encoding device and voice/musical sound encoding method
ATE540477T1 (de) 2004-06-07 2012-01-15 Agency Science Tech & Res Systeme zur skalierbaren kodierung und dekodierung von daten
WO2006051451A1 (en) * 2004-11-09 2006-05-18 Koninklijke Philips Electronics N.V. Audio coding and decoding
JP4635709B2 (ja) * 2005-05-10 2011-02-23 ソニー株式会社 音声符号化装置及び方法、並びに音声復号装置及び方法
WO2007105586A1 (ja) * 2006-03-10 2007-09-20 Matsushita Electric Industrial Co., Ltd. 符号化装置および符号化方法
KR100738109B1 (ko) * 2006-04-03 2007-07-12 삼성전자주식회사 입력 신호의 양자화 및 역양자화 방법과 장치, 입력신호의부호화 및 복호화 방법과 장치
WO2007138511A1 (en) * 2006-05-30 2007-12-06 Koninklijke Philips Electronics N.V. Linear predictive coding of an audio signal
KR100827458B1 (ko) * 2006-07-21 2008-05-06 엘지전자 주식회사 오디오 부호화 방법
JP2008076776A (ja) * 2006-09-21 2008-04-03 Sony Corp データ記録装置、データ記録方法及びデータ記録プログラム
CN101179278B (zh) * 2006-11-07 2010-09-08 扬智科技股份有限公司 音响系统及其声音讯号编码的方法
JP4708446B2 (ja) * 2007-03-02 2011-06-22 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
JP4871894B2 (ja) 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
RU2459283C2 (ru) * 2007-03-02 2012-08-20 Панасоник Корпорэйшн Кодирующее устройство, декодирующее устройство и способ
JP5045295B2 (ja) * 2007-07-30 2012-10-10 ソニー株式会社 信号処理装置及び方法、並びにプログラム
KR101235830B1 (ko) * 2007-12-06 2013-02-21 한국전자통신연구원 음성코덱의 품질향상장치 및 그 방법
US8654990B2 (en) * 2009-02-09 2014-02-18 Waves Audio Ltd. Multiple microphone based directional sound filter
CN101847412B (zh) * 2009-03-27 2012-02-15 华为技术有限公司 音频信号的分类方法及装置
EP2525354B1 (de) 2010-01-13 2015-04-22 Panasonic Intellectual Property Corporation of America Kodiervorrichtung und kodierverfahren
EP2610866B1 (de) 2010-08-24 2015-04-22 LG Electronics Inc. Verfahren und vorrichtung zur verarbeitung von audiosignalen
WO2012144128A1 (ja) 2011-04-20 2012-10-26 パナソニック株式会社 音声音響符号化装置、音声音響復号装置、およびこれらの方法
CN103368682B (zh) * 2012-03-29 2016-12-07 华为技术有限公司 信号编码和解码的方法和设备
JP6096896B2 (ja) * 2012-07-12 2017-03-15 ノキア テクノロジーズ オーユー ベクトル量子化
EP2863386A1 (de) 2013-10-18 2015-04-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecodierer, Vorrichtung zur Erzeugung von codierten Audioausgangsdaten und Verfahren zur Initialisierung eines Decodierers
CN104217726A (zh) * 2014-09-01 2014-12-17 东莞中山大学研究院 一种无损音频压缩编码方法及其解码方法
CN106448630B (zh) 2016-09-09 2020-08-04 腾讯科技（深圳）有限公司 歌曲的数字乐谱文件的生成方法和装置
CN115579013B (zh) * 2022-12-09 2023-03-10 深圳市锦锐科技股份有限公司 一种低功耗音频解码器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69210689T2 (de) * 1991-01-08 1996-11-21 Dolby Lab Licensing Corp Kodierer/dekodierer für mehrdimensionale schallfelder
JP3277679B2 (ja) * 1994-04-15 2002-04-22 ソニー株式会社 高能率符号化方法と高能率符号化装置及び高能率復号化方法と高能率復号化装置
TW321810B (de) 1995-10-26 1997-12-01 Sony Co Ltd
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5781888A (en) * 1996-01-16 1998-07-14 Lucent Technologies Inc. Perceptual noise shaping in the time domain via LPC prediction in the frequency domain
JP3189660B2 (ja) * 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
US5913191A (en) * 1997-10-17 1999-06-15 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries

Also Published As

Publication number Publication date
EP0942411A3 (de) 2002-01-30
EP0942411A2 (de) 1999-09-15
ES2216367T3 (es) 2004-10-16
US6871106B1 (en) 2005-03-22
KR19990077753A (ko) 1999-10-25
KR100304092B1 (ko) 2001-09-26
EP0942411B1 (de) 2004-03-10
CN1240978A (zh) 2000-01-12
DE69915400T2 (de) 2004-08-05
CN1131507C (zh) 2003-12-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP