DE69522187D1 - Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung - Google Patents

Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung

Info

Publication number
DE69522187D1
DE69522187D1 DE69522187T DE69522187T DE69522187D1 DE 69522187 D1 DE69522187 D1 DE 69522187D1 DE 69522187 T DE69522187 T DE 69522187T DE 69522187 T DE69522187 T DE 69522187T DE 69522187 D1 DE69522187 D1 DE 69522187D1
Authority
DE
Germany
Prior art keywords
decoding
coding
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 - Fee Related
Application number
DE69522187T
Other languages
English (en)
Other versions
DE69522187T2 (de
Inventor
Masahito Mori
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69522187D1 publication Critical patent/DE69522187D1/de
Publication of DE69522187T2 publication Critical patent/DE69522187T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L19/0204—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 subband decomposition
    • G10L19/0208—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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69522187T 1994-05-25 1995-05-23 Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung Expired - Fee Related DE69522187T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11125794 1994-05-25
JP11126294 1994-05-25
PCT/JP1995/000989 WO1995032499A1 (fr) 1994-05-25 1995-05-23 Procede de codage, procede de decodage, procede de codage-decodage, codeur, decodeur et codeur-decodeur

Publications (2)

Publication Number Publication Date
DE69522187D1 true DE69522187D1 (de) 2001-09-20
DE69522187T2 DE69522187T2 (de) 2002-05-02

Family

ID=26450688

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69522187T Expired - Fee Related DE69522187T2 (de) 1994-05-25 1995-05-23 Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung

Country Status (5)

Country Link
US (1) US5758315A (de)
EP (1) EP0717392B1 (de)
KR (1) KR960704300A (de)
DE (1) DE69522187T2 (de)
WO (1) WO1995032499A1 (de)

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JP3491425B2 (ja) * 1996-01-30 2004-01-26 ソニー株式会社 信号符号化方法
KR100261254B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치
CN1163891C (zh) * 1998-02-17 2004-08-25 松下电器产业株式会社 图像和/或声音记录装置
JP3515903B2 (ja) * 1998-06-16 2004-04-05 松下電器産業株式会社 オーディオ符号化のための動的ビット割り当て方法及び装置
JP3352406B2 (ja) * 1998-09-17 2002-12-03 松下電器産業株式会社 オーディオ信号の符号化及び復号方法及び装置
EP1175670B2 (de) * 1999-04-16 2007-09-19 Dolby Laboratories Licensing Corporation Audiokodierung mit verstärkungsadaptiver quantisierung und symbolen verschiedener länge
US6871180B1 (en) 1999-05-25 2005-03-22 Arbitron Inc. Decoding of information in audio signals
JP4242516B2 (ja) * 1999-07-26 2009-03-25 パナソニック株式会社 サブバンド符号化方式
JP4287545B2 (ja) * 1999-07-26 2009-07-01 パナソニック株式会社 サブバンド符号化方式
JP2001094433A (ja) * 1999-09-17 2001-04-06 Matsushita Electric Ind Co Ltd サブバンド符号化・復号方法
AUPR433901A0 (en) * 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US6845360B2 (en) 2002-11-22 2005-01-18 Arbitron Inc. Encoding multiple messages in audio data and detecting same
US7318035B2 (en) * 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
US20050010396A1 (en) * 2003-07-08 2005-01-13 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding
US7620545B2 (en) * 2003-07-08 2009-11-17 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
US7426462B2 (en) * 2003-09-29 2008-09-16 Sony Corporation Fast codebook selection method in audio encoding
US7283968B2 (en) 2003-09-29 2007-10-16 Sony Corporation Method for grouping short windows in audio encoding
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
CN101086845B (zh) * 2006-06-08 2011-06-01 北京天籁传音数字技术有限公司 声音编码装置及方法以及声音解码装置及方法
KR101078378B1 (ko) * 2009-03-04 2011-10-31 주식회사 코아로직 오디오 부호화기의 양자화 방법 및 장치
CN103544957B (zh) * 2012-07-13 2017-04-12 华为技术有限公司 音频信号的比特分配的方法和装置
US20150025894A1 (en) * 2013-07-16 2015-01-22 Electronics And Telecommunications Research Institute Method for encoding and decoding of multi channel audio signal, encoder and decoder
US10468036B2 (en) * 2014-04-30 2019-11-05 Accusonus, Inc. Methods and systems for processing and mixing signals using signal decomposition

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FR2389277A1 (fr) * 1977-04-29 1978-11-24 Ibm France Procede de quantification a allocation dynamique du taux de bits disponible, et dispositif de mise en oeuvre dudit procede
JPS6046859B2 (ja) * 1977-10-11 1985-10-18 ソニー株式会社 可変長符号化直列伝送方法
JPS6027459A (ja) * 1983-07-22 1985-02-12 Sumitomo Metal Ind Ltd 通電ロ−ル及び鋳片の溶損防止装置
EP0267344B1 (de) * 1986-10-30 1993-09-01 International Business Machines Corporation Verfahren zur Multigeschwindigkeitskodierung von Signalen und Einrichtung zur Durchführung dieses Verfahrens
JP2867591B2 (ja) * 1990-04-26 1999-03-08 ソニー株式会社 記録レーザビームの制御方法
JPH0411325A (ja) * 1990-04-27 1992-01-16 Sony Corp 光ディスク記録装置
NL9001128A (nl) * 1990-05-14 1991-12-02 Philips Nv Kodeerinrichting bevattende een subbandkoder, en een zender voorzien van de kodeerinrichting.
JP3011447B2 (ja) * 1990-09-20 2000-02-21 三洋電機株式会社 帯域分割符号化装置
JP2833212B2 (ja) * 1990-11-29 1998-12-09 松下電器産業株式会社 帯域分割符号化のビット割当方法
EP0520068B1 (de) * 1991-01-08 1996-05-15 Dolby Laboratories Licensing Corporation Kodierer/dekodierer für mehrdimensionale schallfelder
US5369724A (en) * 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
US5495552A (en) * 1992-04-20 1996-02-27 Mitsubishi Denki Kabushiki Kaisha Methods of efficiently recording an audio signal in semiconductor memory
JPH06180948A (ja) * 1992-12-11 1994-06-28 Sony Corp ディジタル信号処理装置又は方法、及び記録媒体
JP3173218B2 (ja) * 1993-05-10 2001-06-04 ソニー株式会社 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder

Also Published As

Publication number Publication date
EP0717392A1 (de) 1996-06-19
WO1995032499A1 (fr) 1995-11-30
KR960704300A (ko) 1996-08-31
DE69522187T2 (de) 2002-05-02
EP0717392A4 (de) 1998-04-15
US5758315A (en) 1998-05-26
EP0717392B1 (de) 2001-08-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee