DE60204039D1 - Vorrichtung zur kodierung und dekodierung von audiosignalen - Google Patents

Vorrichtung zur kodierung und dekodierung von audiosignalen

Info

Publication number
DE60204039D1
DE60204039D1 DE60204039T DE60204039T DE60204039D1 DE 60204039 D1 DE60204039 D1 DE 60204039D1 DE 60204039 T DE60204039 T DE 60204039T DE 60204039 T DE60204039 T DE 60204039T DE 60204039 D1 DE60204039 D1 DE 60204039D1
Authority
DE
Germany
Prior art keywords
coding
audio signals
decoding audio
decoding
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
DE60204039T
Other languages
English (en)
Other versions
DE60204039T2 (de
Inventor
Kosuke Nishio
Takeshi Norimatsu
Mineo Tsushima
Naoya Tanaka
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
Matsushita Electric Industrial 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
Priority claimed from JP2001337869A external-priority patent/JP3923783B2/ja
Priority claimed from JP2001381807A external-priority patent/JP3984468B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE60204039D1 publication Critical patent/DE60204039D1/de
Publication of DE60204039T2 publication Critical patent/DE60204039T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/0204—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
DE60204039T 2001-11-02 2002-10-30 Vorrichtung zur kodierung und dekodierung von audiosignalen Expired - Lifetime DE60204039T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2001337869A JP3923783B2 (ja) 2001-11-02 2001-11-02 符号化装置及び復号化装置
JP2001337869 2001-11-02
JP2001367008 2001-11-30
JP2001367008 2001-11-30
JP2001381807 2001-12-14
JP2001381807A JP3984468B2 (ja) 2001-12-14 2001-12-14 符号化装置、復号化装置及び符号化方法
PCT/JP2002/011256 WO2003038813A1 (en) 2001-11-02 2002-10-30 Audio encoding and decoding device

Publications (2)

Publication Number Publication Date
DE60204039D1 true DE60204039D1 (de) 2005-06-09
DE60204039T2 DE60204039T2 (de) 2006-03-02

Family

ID=27347778

Family Applications (3)

Application Number Title Priority Date Filing Date
DE60204039T Expired - Lifetime DE60204039T2 (de) 2001-11-02 2002-10-30 Vorrichtung zur kodierung und dekodierung von audiosignalen
DE60208426T Expired - Lifetime DE60208426T2 (de) 2001-11-02 2002-10-30 Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten
DE60204038T Expired - Lifetime DE60204038T2 (de) 2001-11-02 2002-10-30 Vorrichtung zum codieren bzw. decodieren eines audiosignals

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE60208426T Expired - Lifetime DE60208426T2 (de) 2001-11-02 2002-10-30 Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten
DE60204038T Expired - Lifetime DE60204038T2 (de) 2001-11-02 2002-10-30 Vorrichtung zum codieren bzw. decodieren eines audiosignals

Country Status (5)

Country Link
US (3) US7392176B2 (de)
EP (3) EP1440433B1 (de)
CN (3) CN1324558C (de)
DE (3) DE60204039T2 (de)
WO (3) WO2003038812A1 (de)

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CN1484756A (zh) 2004-03-24
EP1440432A1 (de) 2004-07-28
WO2003038813A1 (en) 2003-05-08
EP1440300A1 (de) 2004-07-28
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CN1324558C (zh) 2007-07-04
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EP1440432B1 (de) 2005-05-04
CN1209744C (zh) 2005-07-06
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US20030088423A1 (en) 2003-05-08
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US7392176B2 (en) 2008-06-24
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US20030088328A1 (en) 2003-05-08
DE60208426D1 (de) 2006-02-02
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