DE69901273D1 - Verfahren zur Codierung und Quantisierung von Audiosignalen - Google Patents

Verfahren zur Codierung und Quantisierung von Audiosignalen

Info

Publication number
DE69901273D1
DE69901273D1 DE69901273T DE69901273T DE69901273D1 DE 69901273 D1 DE69901273 D1 DE 69901273D1 DE 69901273 T DE69901273 T DE 69901273T DE 69901273 T DE69901273 T DE 69901273T DE 69901273 D1 DE69901273 D1 DE 69901273D1
Authority
DE
Germany
Prior art keywords
coding
methods
audio signals
quantizing audio
quantizing
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
DE69901273T
Other languages
English (en)
Other versions
DE69901273T2 (de
Inventor
Tadashi Araki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE69901273D1 publication Critical patent/DE69901273D1/de
Application granted granted Critical
Publication of DE69901273T2 publication Critical patent/DE69901273T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G10L19/002—Dynamic bit allocation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69901273T 1998-06-26 1999-06-23 Verfahren zur Codierung und Quantisierung von Audiosignalen Expired - Fee Related DE69901273T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18067698 1998-06-26
JP13075199A JP3784993B2 (ja) 1998-06-26 1999-05-12 音響信号の符号化・量子化方法

Publications (2)

Publication Number Publication Date
DE69901273D1 true DE69901273D1 (de) 2002-05-23
DE69901273T2 DE69901273T2 (de) 2002-08-14

Family

ID=26465801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69901273T Expired - Fee Related DE69901273T2 (de) 1998-06-26 1999-06-23 Verfahren zur Codierung und Quantisierung von Audiosignalen

Country Status (4)

Country Link
US (1) US6725192B1 (de)
EP (1) EP0967593B1 (de)
JP (1) JP3784993B2 (de)
DE (1) DE69901273T2 (de)

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TW499672B (en) * 2000-02-18 2002-08-21 Intervideo Inc Fast convergence method for bit allocation stage of MPEG audio layer 3 encoders
US6735561B1 (en) * 2000-03-29 2004-05-11 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
EP1139336A3 (de) * 2000-03-30 2004-01-02 Matsushita Electric Industrial Co., Ltd. Bestimmung der Quantisierungsfaktoren für einen Audio-Teilbandkodierer
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
US7047187B2 (en) * 2002-02-27 2006-05-16 Matsushita Electric Industrial Co., Ltd. Method and apparatus for audio error concealment using data hiding
KR100477699B1 (ko) * 2003-01-15 2005-03-18 삼성전자주식회사 양자화 잡음 분포 조절 방법 및 장치
TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
KR100547113B1 (ko) * 2003-02-15 2006-01-26 삼성전자주식회사 오디오 데이터 인코딩 장치 및 방법
WO2005027096A1 (en) * 2003-09-15 2005-03-24 Zakrytoe Aktsionernoe Obschestvo Intel Method and apparatus for encoding audio
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
DE102004009955B3 (de) * 2004-03-01 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
KR100682890B1 (ko) * 2004-09-08 2007-02-15 삼성전자주식회사 비트량 고속제어가 가능한 오디오 부호화 방법 및 장치
US20070168197A1 (en) * 2006-01-18 2007-07-19 Nokia Corporation Audio coding
US7680099B2 (en) 2006-08-22 2010-03-16 Nokia Corporation Jitter buffer adjustment
JP5224666B2 (ja) * 2006-09-08 2013-07-03 株式会社東芝 オーディオ符号化装置
US20090006081A1 (en) * 2007-06-27 2009-01-01 Samsung Electronics Co., Ltd. Method, medium and apparatus for encoding and/or decoding signal
TWI374671B (en) * 2007-07-31 2012-10-11 Realtek Semiconductor Corp Audio encoding method with function of accelerating a quantization iterative loop process
CN101790757B (zh) * 2007-08-27 2012-05-30 爱立信电话股份有限公司 语音与音频信号的改进的变换编码
GB2454190A (en) * 2007-10-30 2009-05-06 Cambridge Silicon Radio Ltd Minimising a cost function in encoding data using spectral partitioning
JP5262171B2 (ja) * 2008-02-19 2013-08-14 富士通株式会社 符号化装置、符号化方法および符号化プログラム
KR20090122142A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
KR101995694B1 (ko) * 2011-04-20 2019-07-02 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 허프만 부호화를 실행하기 위한 장치 및 방법
US8774308B2 (en) 2011-11-01 2014-07-08 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth mismatched channel
US8781023B2 (en) * 2011-11-01 2014-07-15 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth expanded channel
JP5942463B2 (ja) * 2012-02-17 2016-06-29 株式会社ソシオネクスト オーディオ信号符号化装置およびオーディオ信号符号化方法
US10586546B2 (en) 2018-04-26 2020-03-10 Qualcomm Incorporated Inversely enumerated pyramid vector quantizers for efficient rate adaptation in audio coding
US10573331B2 (en) * 2018-05-01 2020-02-25 Qualcomm Incorporated Cooperative pyramid vector quantizers for scalable audio coding
US10734006B2 (en) 2018-06-01 2020-08-04 Qualcomm Incorporated Audio coding based on audio pattern recognition
US10580424B2 (en) 2018-06-01 2020-03-03 Qualcomm Incorporated Perceptual audio coding as sequential decision-making problems
CN111402904B (zh) * 2018-12-28 2023-12-01 南京中感微电子有限公司 音频数据恢复方法、装置及蓝牙设备

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US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US5887187A (en) * 1993-10-20 1999-03-23 Lsi Logic Corporation Single chip network adapter apparatus
KR100269213B1 (ko) * 1993-10-30 2000-10-16 윤종용 오디오신호의부호화방법
JP3131542B2 (ja) * 1993-11-25 2001-02-05 シャープ株式会社 符号化復号化装置
JP3125543B2 (ja) 1993-11-29 2001-01-22 ソニー株式会社 信号符号化方法及び装置、信号復号化方法及び装置、並びに記録媒体
KR0144011B1 (ko) * 1994-12-31 1998-07-15 김주용 엠펙 오디오 데이타 고속 비트 할당 및 최적 비트 할당 방법
US6138051A (en) * 1996-01-23 2000-10-24 Sarnoff Corporation Method and apparatus for evaluating an audio decoder
GB2318029B (en) * 1996-10-01 2000-11-08 Nokia Mobile Phones Ltd Audio coding method and apparatus
US5893066A (en) * 1996-10-15 1999-04-06 Samsung Electronics Co. Ltd. Fast requantization apparatus and method for MPEG audio decoding
US6081783A (en) * 1997-11-14 2000-06-27 Cirrus Logic, Inc. Dual processor digital audio decoder with shared memory data transfer and task partitioning for decompressing compressed audio data, and systems and methods using the same
KR100335609B1 (ko) * 1997-11-20 2002-10-04 삼성전자 주식회사 비트율조절이가능한오디오부호화/복호화방법및장치

Also Published As

Publication number Publication date
JP3784993B2 (ja) 2006-06-14
DE69901273T2 (de) 2002-08-14
EP0967593B1 (de) 2002-04-17
JP2000082964A (ja) 2000-03-21
US6725192B1 (en) 2004-04-20
EP0967593A1 (de) 1999-12-29

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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