DE602004030594D1 - Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung - Google Patents

Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung

Info

Publication number
DE602004030594D1
DE602004030594D1 DE602004030594T DE602004030594T DE602004030594D1 DE 602004030594 D1 DE602004030594 D1 DE 602004030594D1 DE 602004030594 T DE602004030594 T DE 602004030594T DE 602004030594 T DE602004030594 T DE 602004030594T DE 602004030594 D1 DE602004030594 D1 DE 602004030594D1
Authority
DE
Germany
Prior art keywords
spectro
deciding
coding
case
time limit
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.)
Active
Application number
DE602004030594T
Other languages
English (en)
Inventor
Kok Seng Chong
Sua Hong Neo
Naoya Tanaka
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
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Publication of DE602004030594D1 publication Critical patent/DE602004030594D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • H04B1/667—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 a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE602004030594T 2003-10-07 2004-10-04 Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung Active DE602004030594D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003348621 2003-10-07
PCT/JP2004/014977 WO2005036527A1 (ja) 2003-10-07 2004-10-04 スペクトル包絡線符号化のための時間境界及び周波数分解能の決定方法

Publications (1)

Publication Number Publication Date
DE602004030594D1 true DE602004030594D1 (de) 2011-01-27

Family

ID=34430971

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004030594T Active DE602004030594D1 (de) 2003-10-07 2004-10-04 Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung

Country Status (5)

Country Link
US (1) US7451091B2 (de)
EP (1) EP1672618B1 (de)
JP (1) JP4767687B2 (de)
DE (1) DE602004030594D1 (de)
WO (1) WO2005036527A1 (de)

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US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
US20060269024A1 (en) * 2005-05-27 2006-11-30 Francis Dominique Initial multi-path acquisition of random access channels
US7929499B2 (en) * 2005-07-13 2011-04-19 Alcatel-Lucent Usa Inc. Methods of multipath acquisition for dedicated traffic channels
US7764656B2 (en) * 2005-07-13 2010-07-27 Alcatel-Lucent Usa Inc. Methods of multipath acquisition for dedicated traffic channels
US7856071B2 (en) * 2005-07-26 2010-12-21 Alcatel-Lucent Usa Inc. Multi-path acquisition in the presence of very high data rate users
US8041578B2 (en) * 2006-10-18 2011-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
DE102006049154B4 (de) * 2006-10-18 2009-07-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodierung eines Informationssignals
US8417532B2 (en) * 2006-10-18 2013-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
JP4967618B2 (ja) * 2006-11-24 2012-07-04 富士通株式会社 復号化装置および復号化方法
JP5103880B2 (ja) * 2006-11-24 2012-12-19 富士通株式会社 復号化装置および復号化方法
JP4984983B2 (ja) * 2007-03-09 2012-07-25 富士通株式会社 符号化装置および符号化方法
US8428953B2 (en) * 2007-05-24 2013-04-23 Panasonic Corporation Audio decoding device, audio decoding method, program, and integrated circuit
WO2009088258A2 (ko) * 2008-01-09 2009-07-16 Lg Electronics Inc. 프레임 타입 식별 방법 및 장치
BRPI0910511B1 (pt) 2008-07-11 2021-06-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Aparelho e método para decodificar e codificar um sinal de áudio
MY155538A (en) * 2008-07-11 2015-10-30 Fraunhofer Ges Forschung An apparatus and a method for generating bandwidth extension output data
CN101751926B (zh) * 2008-12-10 2012-07-04 华为技术有限公司 信号编码、解码方法及装置、编解码系统
PL3598447T3 (pl) 2009-01-16 2022-02-14 Dolby International Ab Transpozycja harmonicznych rozszerzona o iloczyn wektorowy
PL2273493T3 (pl) * 2009-06-29 2013-07-31 Fraunhofer Ges Forschung Kodowanie i dekodowanie z rozszerzaniem szerokości pasma
AU2014201331B2 (en) * 2009-06-29 2015-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
BR122021003688B1 (pt) 2010-08-12 2021-08-24 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V. Reamostrar sinais de saída de codecs de áudio com base em qmf
JP5633431B2 (ja) * 2011-03-02 2014-12-03 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
WO2012158333A1 (en) 2011-05-19 2012-11-22 Dolby Laboratories Licensing Corporation Forensic detection of parametric audio coding schemes
CN104143341B (zh) * 2013-05-23 2015-10-21 腾讯科技（深圳）有限公司 爆音检测方法和装置
FR3008533A1 (fr) * 2013-07-12 2015-01-16 Orange Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences
JP6763194B2 (ja) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド 符号化装置、復号装置、通信システム

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SE512719C2 (sv) 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
JP2000267700A (ja) 1999-03-17 2000-09-29 Yrp Kokino Idotai Tsushin Kenkyusho:Kk 音声符号化復号方法および装置
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US6978236B1 (en) * 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
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US7110953B1 (en) * 2000-06-02 2006-09-19 Agere Systems Inc. Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction
JP4313993B2 (ja) * 2002-07-19 2009-08-12 パナソニック株式会社 オーディオ復号化装置およびオーディオ復号化方法
JP3879922B2 (ja) 2002-09-12 2007-02-14 ソニー株式会社 信号処理システム、信号処理装置および方法、記録媒体、並びにプログラム
SE0301273D0 (sv) * 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Also Published As

Publication number Publication date
EP1672618A1 (de) 2006-06-21
JPWO2005036527A1 (ja) 2006-12-21
JP4767687B2 (ja) 2011-09-07
US20060256971A1 (en) 2006-11-16
EP1672618A4 (de) 2008-06-25
US7451091B2 (en) 2008-11-11
EP1672618B1 (de) 2010-12-15
WO2005036527A1 (ja) 2005-04-21

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