DE69323106T2 - Verfahren und Vorrichtung für perceptuelles Kodieren von Audio-Signalen - Google Patents

Verfahren und Vorrichtung für perceptuelles Kodieren von Audio-Signalen

Info

Publication number
DE69323106T2
DE69323106T2 DE69323106T DE69323106T DE69323106T2 DE 69323106 T2 DE69323106 T2 DE 69323106T2 DE 69323106 T DE69323106 T DE 69323106T DE 69323106 T DE69323106 T DE 69323106T DE 69323106 T2 DE69323106 T2 DE 69323106T2
Authority
DE
Germany
Prior art keywords
audio signals
perceptual coding
perceptual
coding
audio
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
DE69323106T
Other languages
English (en)
Other versions
DE69323106D1 (de
Inventor
Sousa Ferreira Anibal Joao De
James David Johnston
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Publication of DE69323106D1 publication Critical patent/DE69323106D1/de
Application granted granted Critical
Publication of DE69323106T2 publication Critical patent/DE69323106T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10592—Audio or video recording specifically adapted for recording or reproducing multichannel signals
DE69323106T 1992-03-02 1993-02-25 Verfahren und Vorrichtung für perceptuelles Kodieren von Audio-Signalen Expired - Lifetime DE69323106T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84481992A 1992-03-02 1992-03-02

Publications (2)

Publication Number Publication Date
DE69323106D1 DE69323106D1 (de) 1999-03-04
DE69323106T2 true DE69323106T2 (de) 1999-09-02

Family

ID=25293716

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323106T Expired - Lifetime DE69323106T2 (de) 1992-03-02 1993-02-25 Verfahren und Vorrichtung für perceptuelles Kodieren von Audio-Signalen

Country Status (6)

Country Link
US (1) US5592584A (de)
EP (1) EP0564089B1 (de)
JP (1) JP2923406B2 (de)
KR (1) KR960003457B1 (de)
CA (1) CA2090052C (de)
DE (1) DE69323106T2 (de)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40280E1 (en) 1988-12-30 2008-04-29 Lucent Technologies Inc. Rate loop processor for perceptual encoder/decoder
EP0559348A3 (de) 1992-03-02 1993-11-03 AT&T Corp. Rateurregelschleifenprozessor für einen wahrnehmungsgebundenen Koder/Dekoder
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
KR970011727B1 (en) * 1994-11-09 1997-07-14 Daewoo Electronics Co Ltd Apparatus for encoding of the audio signal
JP2842276B2 (ja) * 1995-02-24 1998-12-24 日本電気株式会社 広帯域信号符号化装置
JP2809126B2 (ja) * 1995-03-30 1998-10-08 日本電気株式会社 音声信号処理回路および音声信号処理方法
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
US5732189A (en) * 1995-12-22 1998-03-24 Lucent Technologies Inc. Audio signal coding with a signal adaptive filterbank
KR100460159B1 (ko) * 1996-03-19 2005-02-23 루센트 테크놀러지스 인크 오디오신호인코딩방법및장치
DE19628292B4 (de) 1996-07-12 2007-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Codieren und Decodieren von Stereoaudiospektralwerten
US8306811B2 (en) * 1996-08-30 2012-11-06 Digimarc Corporation Embedding data in audio and detecting embedded data in audio
KR100488537B1 (ko) * 1996-11-20 2005-09-30 삼성전자주식회사 듀얼모드오디오디코더의재현방법및필터
TW429700B (en) * 1997-02-26 2001-04-11 Sony Corp Information encoding method and apparatus, information decoding method and apparatus and information recording medium
KR100261253B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 부호화/복호화 방법및 장치
US6741965B1 (en) * 1997-04-10 2004-05-25 Sony Corporation Differential stereo using two coding techniques
WO1999012292A1 (en) * 1997-08-29 1999-03-11 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd. Fast synthesis sub-band filtering method for digital signal decoding
US6233550B1 (en) 1997-08-29 2001-05-15 The Regents Of The University Of California Method and apparatus for hybrid coding of speech at 4kbps
DE19742655C2 (de) * 1997-09-26 1999-08-05 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Codieren eines zeitdiskreten Stereosignals
DE19742944B4 (de) * 1997-09-29 2008-03-27 Infineon Technologies Ag Verfahren zum Aufzeichnen eines digitalisierten Audiosignals
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
DE69823557T2 (de) * 1998-02-21 2005-02-03 Stmicroelectronics Asia Pacific Pte Ltd. Schnelle frequenztransformationstechnik für transform audio koder
DE19907729C2 (de) * 1999-02-23 2001-02-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erzeugen eines Datenstroms aus Codeworten variabler Länge und Verfahren und Vorrichtung zum Lesen eines Datenstroms aus Codeworten variabler Länge
US6246345B1 (en) * 1999-04-16 2001-06-12 Dolby Laboratories Licensing Corporation Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding
US6678653B1 (en) 1999-09-07 2004-01-13 Matsushita Electric Industrial Co., Ltd. Apparatus and method for coding audio data at high speed using precision information
US6754618B1 (en) * 2000-06-07 2004-06-22 Cirrus Logic, Inc. Fast implementation of MPEG audio coding
US6745162B1 (en) * 2000-06-22 2004-06-01 Sony Corporation System and method for bit allocation in an audio encoder
US7930170B2 (en) * 2001-01-11 2011-04-19 Sasken Communication Technologies Limited Computationally efficient audio coder
JP2002217740A (ja) * 2001-01-19 2002-08-02 Sakai Yasue 圧縮方法及び装置、伸長方法及び装置、圧縮伸長システム、記録媒体
WO2002093559A1 (en) * 2001-05-11 2002-11-21 Matsushita Electric Industrial Co., Ltd. Device to encode, decode and broadcast audio signal with reduced size spectral information
US7460629B2 (en) * 2001-06-29 2008-12-02 Agere Systems Inc. Method and apparatus for frame-based buffer control in a communication system
WO2003032296A1 (fr) * 2001-10-03 2003-04-17 Sony Corporation Appareil et procede de codage, appareil et procede de decodage et appareil et procede d'enregistrement de support d'enregistrement
DE60204038T2 (de) * 2001-11-02 2006-01-19 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zum codieren bzw. decodieren eines audiosignals
DE60330198D1 (de) * 2002-09-04 2009-12-31 Microsoft Corp Entropische Kodierung mittels Anpassung des Kodierungsmodus zwischen Niveau- und Lauflängenniveau-Modus
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
US7516064B2 (en) * 2004-02-19 2009-04-07 Dolby Laboratories Licensing Corporation Adaptive hybrid transform for signal analysis and synthesis
DE102004009949B4 (de) * 2004-03-01 2006-03-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
US7937271B2 (en) 2004-09-17 2011-05-03 Digital Rise Technology Co., Ltd. Audio decoding using variable-length codebook application ranges
US7693709B2 (en) * 2005-07-15 2010-04-06 Microsoft Corporation Reordering coefficients for waveform coding or decoding
US7684981B2 (en) * 2005-07-15 2010-03-23 Microsoft Corporation Prediction of spectral coefficients in waveform coding and decoding
US7599840B2 (en) * 2005-07-15 2009-10-06 Microsoft Corporation Selectively using multiple entropy models in adaptive coding and decoding
US7565018B2 (en) * 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
US7933337B2 (en) * 2005-08-12 2011-04-26 Microsoft Corporation Prediction of transform coefficients for image compression
US20090276210A1 (en) * 2006-03-31 2009-11-05 Panasonic Corporation Stereo audio encoding apparatus, stereo audio decoding apparatus, and method thereof
US8184710B2 (en) * 2007-02-21 2012-05-22 Microsoft Corporation Adaptive truncation of transform coefficient data in a transform-based digital media codec
US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
US20090210222A1 (en) * 2008-02-15 2009-08-20 Microsoft Corporation Multi-Channel Hole-Filling For Audio Compression
US8179974B2 (en) 2008-05-02 2012-05-15 Microsoft Corporation Multi-level representation of reordered transform coefficients
WO2009142017A1 (ja) * 2008-05-22 2009-11-26 パナソニック株式会社 ステレオ信号変換装置、ステレオ信号逆変換装置およびこれらの方法
US8406307B2 (en) 2008-08-22 2013-03-26 Microsoft Corporation Entropy coding/decoding of hierarchically organized data
CN112599139B (zh) * 2020-12-24 2023-11-24 维沃移动通信有限公司 编码方法、装置、电子设备及存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484755A1 (fr) * 1980-06-16 1981-12-18 Henry Jean Philippe Recepteur numerique de signalisation multifrequence utilisant des filtres non recursifs avec des fonctions de fenetre
DE3308025A1 (de) * 1983-03-07 1984-09-13 ANT Nachrichtentechnik GmbH, 7150 Backnang System zur uebertragung und zum empfang von digitalen informationssignalen
DE3506912A1 (de) * 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung eines audiosignals
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
US4856068A (en) * 1985-03-18 1989-08-08 Massachusetts Institute Of Technology Audio pre-processing methods and apparatus
US4937873A (en) * 1985-03-18 1990-06-26 Massachusetts Institute Of Technology Computationally efficient sine wave synthesis for acoustic waveform processing
DE3703143A1 (de) * 1987-02-03 1988-08-11 Thomson Brandt Gmbh Verfahren zur uebertragung eines audiosignals
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
WO1989003574A1 (en) * 1987-10-06 1989-04-20 Fraunhofer Gesellschaft Zur Förderung Der Angewand Digital adaptive transform coding process
US4813056A (en) * 1987-12-08 1989-03-14 General Electric Company Modified statistical coding of digital signals
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5230038A (en) * 1989-01-27 1993-07-20 Fielder Louis D Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5297236A (en) * 1989-01-27 1994-03-22 Dolby Laboratories Licensing Corporation Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder
US5222189A (en) * 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
JPH06103862B2 (ja) * 1990-01-25 1994-12-14 国際電気株式会社 音声多重通信方法及び装置

Also Published As

Publication number Publication date
JP2923406B2 (ja) 1999-07-26
CA2090052A1 (en) 1993-09-03
EP0564089A1 (de) 1993-10-06
US5592584A (en) 1997-01-07
CA2090052C (en) 1998-11-24
KR930020405A (ko) 1993-10-19
KR960003457B1 (ko) 1996-03-13
DE69323106D1 (de) 1999-03-04
JPH0629859A (ja) 1994-02-04
EP0564089B1 (de) 1999-01-20

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