DE60000185T2 - Verfahren und Vorrichtung zur Audiokodierung und -dekodierung mittels Verschachtelung geglätteter Hüllkurven kritischer Bänder höherer Frequenzen - Google Patents

Verfahren und Vorrichtung zur Audiokodierung und -dekodierung mittels Verschachtelung geglätteter Hüllkurven kritischer Bänder höherer Frequenzen

Info

Publication number
DE60000185T2
DE60000185T2 DE60000185T DE60000185T DE60000185T2 DE 60000185 T2 DE60000185 T2 DE 60000185T2 DE 60000185 T DE60000185 T DE 60000185T DE 60000185 T DE60000185 T DE 60000185T DE 60000185 T2 DE60000185 T2 DE 60000185T2
Authority
DE
Germany
Prior art keywords
frequency band
signal
high frequency
signals
band 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
DE60000185T
Other languages
German (de)
English (en)
Other versions
DE60000185D1 (de
Inventor
Oded Ghitza
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE60000185D1 publication Critical patent/DE60000185D1/de
Publication of DE60000185T2 publication Critical patent/DE60000185T2/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
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • G10H1/0058—Transmission between separate instruments or between individual components of a musical system
    • 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
    • G10L19/0212—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)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60000185T 2000-05-26 2000-12-08 Verfahren und Vorrichtung zur Audiokodierung und -dekodierung mittels Verschachtelung geglätteter Hüllkurven kritischer Bänder höherer Frequenzen Expired - Lifetime DE60000185T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58021500A 2000-05-26 2000-05-26

Publications (2)

Publication Number Publication Date
DE60000185D1 DE60000185D1 (de) 2002-07-04
DE60000185T2 true DE60000185T2 (de) 2002-11-28

Family

ID=24320180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60000185T Expired - Lifetime DE60000185T2 (de) 2000-05-26 2000-12-08 Verfahren und Vorrichtung zur Audiokodierung und -dekodierung mittels Verschachtelung geglätteter Hüllkurven kritischer Bänder höherer Frequenzen

Country Status (3)

Country Link
EP (1) EP1158494B1 (https=)
JP (1) JP4927264B2 (https=)
DE (1) DE60000185T2 (https=)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657777B1 (en) * 2001-12-05 2003-12-02 Cisco Technology, Inc Interleaved lumped raman amplifier structure based on highly nonlinear fibers for densely spaced WDM channels
JP2005202262A (ja) * 2004-01-19 2005-07-28 Matsushita Electric Ind Co Ltd 音声信号符号化方法、音声信号復号化方法、送信機、受信機、及びワイヤレスマイクシステム
EP1829424B1 (en) * 2005-04-15 2009-01-21 Dolby Sweden AB Temporal envelope shaping of decorrelated signals
US8027242B2 (en) * 2005-10-21 2011-09-27 Qualcomm Incorporated Signal coding and decoding based on spectral dynamics
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
WO2007148925A1 (en) * 2006-06-21 2007-12-27 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
WO2008114075A1 (en) * 2007-03-16 2008-09-25 Nokia Corporation An encoder
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
WO2009047858A1 (ja) * 2007-10-12 2009-04-16 Fujitsu Limited エコー抑圧システム、エコー抑圧方法、エコー抑圧プログラム、エコー抑圧装置、音出力装置、オーディオシステム、ナビゲーションシステム及び移動体
JP5004094B2 (ja) * 2008-03-04 2012-08-22 国立大学法人北陸先端科学技術大学院大学 電子透かし埋込装置及び電子透かし検出装置、並びに電子透かし埋込方法及び電子透かし検出方法
CN101777960B (zh) * 2008-11-17 2013-08-14 华为终端有限公司 音频编码方法、音频解码方法、相关装置及通信系统
CN101770775B (zh) 2008-12-31 2011-06-22 华为技术有限公司 信号处理方法及装置
ES3023486T3 (en) 2009-01-16 2025-06-02 Dolby Int Ab Cross product enhanced harmonic transposition
CN101989425B (zh) * 2009-07-30 2012-05-23 华为终端有限公司 多描述音频编解码的方法、装置及系统
KR102450178B1 (ko) 2013-04-05 2022-10-06 돌비 인터네셔널 에이비 인터리브된 파형 코딩을 위한 오디오 인코더 및 디코더
WO2014185569A1 (ko) * 2013-05-15 2014-11-20 삼성전자 주식회사 오디오 신호의 부호화, 복호화 방법 및 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3174560D1 (en) * 1981-07-28 1986-06-12 Ibm Transmission method for voice and digital data and arrangement for carrying out said method
JP2581696B2 (ja) * 1987-07-23 1997-02-12 沖電気工業株式会社 音声分析合成器
JPH0298232A (ja) * 1988-10-05 1990-04-10 Fujitsu Ltd 時間切替型帯域分割音声符号化装置
AU9404098A (en) * 1997-09-23 1999-04-12 Voxware, Inc. Scalable and embedded codec for speech and audio signals

Also Published As

Publication number Publication date
EP1158494A1 (en) 2001-11-28
JP4927264B2 (ja) 2012-05-09
JP2002032100A (ja) 2002-01-31
EP1158494B1 (en) 2002-05-29
DE60000185D1 (de) 2002-07-04

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