DE60015030D1 - Auf Block Umschaltung basierender Teilband-Audiokodierer - Google Patents

Auf Block Umschaltung basierender Teilband-Audiokodierer

Info

Publication number
DE60015030D1
DE60015030D1 DE60015030T DE60015030T DE60015030D1 DE 60015030 D1 DE60015030 D1 DE 60015030D1 DE 60015030 T DE60015030 T DE 60015030T DE 60015030 T DE60015030 T DE 60015030T DE 60015030 D1 DE60015030 D1 DE 60015030D1
Authority
DE
Germany
Prior art keywords
audio encoder
encoder based
block switching
subband audio
subband
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
DE60015030T
Other languages
English (en)
Other versions
DE60015030T2 (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 DE60015030D1 publication Critical patent/DE60015030D1/de
Application granted granted Critical
Publication of DE60015030T2 publication Critical patent/DE60015030T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60015030T 1999-08-05 2000-08-04 Auf Block Umschaltung basierender Teilband-Audiokodierer Expired - Lifetime DE60015030T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22205499 1999-08-05
JP22205499A JP3762579B2 (ja) 1999-08-05 1999-08-05 デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体

Publications (2)

Publication Number Publication Date
DE60015030D1 true DE60015030D1 (de) 2004-11-25
DE60015030T2 DE60015030T2 (de) 2005-11-10

Family

ID=16776386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60015030T Expired - Lifetime DE60015030T2 (de) 1999-08-05 2000-08-04 Auf Block Umschaltung basierender Teilband-Audiokodierer

Country Status (6)

Country Link
US (1) US6799164B1 (de)
EP (1) EP1074976B1 (de)
JP (1) JP3762579B2 (de)
KR (1) KR100348368B1 (de)
DE (1) DE60015030T2 (de)
ES (1) ES2231090T3 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7006555B1 (en) 1998-07-16 2006-02-28 Nielsen Media Research, Inc. Spectral audio encoding
US7035873B2 (en) 2001-08-20 2006-04-25 Microsoft Corporation System and methods for providing adaptive media property classification
US7065416B2 (en) * 2001-08-29 2006-06-20 Microsoft Corporation System and methods for providing automatic classification of media entities according to melodic movement properties
US7532943B2 (en) * 2001-08-21 2009-05-12 Microsoft Corporation System and methods for providing automatic classification of media entities according to sonic properties
WO2002056297A1 (en) * 2001-01-11 2002-07-18 Sasken Communication Technologies Limited Adaptive-block-length audio coder
JP4141235B2 (ja) * 2002-02-08 2008-08-27 株式会社リコー 画像補正装置及びプログラム
US20030215013A1 (en) * 2002-04-10 2003-11-20 Budnikov Dmitry N. Audio encoder with adaptive short window grouping
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
US7283968B2 (en) * 2003-09-29 2007-10-16 Sony Corporation Method for grouping short windows in audio encoding
US7325023B2 (en) 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
US7426462B2 (en) * 2003-09-29 2008-09-16 Sony Corporation Fast codebook selection method in audio encoding
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
US7436969B2 (en) * 2004-09-02 2008-10-14 Hewlett-Packard Development Company, L.P. Method and system for optimizing denoising parameters using compressibility
US7627481B1 (en) * 2005-04-19 2009-12-01 Apple Inc. Adapting masking thresholds for encoding a low frequency transient signal in audio data
US8214220B2 (en) 2005-05-26 2012-07-03 Lg Electronics Inc. Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal
EP1908057B1 (de) 2005-06-30 2012-06-20 LG Electronics Inc. Verfahren und vorrichtung zum decodieren eines audiosignals
US7830921B2 (en) 2005-07-11 2010-11-09 Lg Electronics Inc. Apparatus and method of encoding and decoding audio signal
US7565018B2 (en) * 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
CA2620627C (en) 2005-08-30 2011-03-15 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
US7813380B2 (en) * 2005-10-05 2010-10-12 Lg Electronics Inc. Method of processing a signal and apparatus for processing a signal
US8068569B2 (en) 2005-10-05 2011-11-29 Lg Electronics, Inc. Method and apparatus for signal processing and encoding and decoding
KR100857112B1 (ko) 2005-10-05 2008-09-05 엘지전자 주식회사 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치
US7646319B2 (en) 2005-10-05 2010-01-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7672379B2 (en) 2005-10-05 2010-03-02 Lg Electronics Inc. Audio signal processing, encoding, and decoding
US7696907B2 (en) 2005-10-05 2010-04-13 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7761289B2 (en) 2005-10-24 2010-07-20 Lg Electronics Inc. Removing time delays in signal paths
JP2007183528A (ja) * 2005-12-06 2007-07-19 Fujitsu Ltd 符号化装置、符号化方法、および符号化プログラム
US20090144054A1 (en) * 2007-11-30 2009-06-04 Kabushiki Kaisha Toshiba Embedded system to perform frame switching
US9313359B1 (en) 2011-04-26 2016-04-12 Gracenote, Inc. Media content identification on mobile devices
US20190373312A1 (en) 2012-02-21 2019-12-05 Gracenote, Inc. Media Content Identification on Mobile Devices
EP2830064A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Decodierung und Codierung eines Audiosignals unter Verwendung adaptiver Spektralabschnittsauswahl
US9943253B2 (en) 2015-03-20 2018-04-17 Innovo IP, LLC System and method for improved audio perception
JP7257975B2 (ja) * 2017-07-03 2023-04-14 ドルビー・インターナショナル・アーベー 密集性の過渡事象の検出及び符号化の複雑さの低減
WO2019007969A1 (en) * 2017-07-03 2019-01-10 Dolby International Ab DETECTION AND CODING OF LOW COMPLEXITY DENSED TRANSIENT EVENTS
US10922139B2 (en) * 2018-10-11 2021-02-16 Visa International Service Association System, method, and computer program product for processing large data sets by balancing entropy between distributed data segments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559348A3 (de) * 1992-03-02 1993-11-03 AT&T Corp. Rateurregelschleifenprozessor für einen wahrnehmungsgebundenen Koder/Dekoder
EP0720316B1 (de) * 1994-12-30 1999-12-08 Daewoo Electronics Co., Ltd Adaptive Kodiervorrichtung für Digitaltonsignale und Bitverteilungsverfahren dafür
EP0721257B1 (de) * 1995-01-09 2005-03-30 Daewoo Electronics Corporation Bitverteilung für Mehrkanal-Audiokodierer auf Grund von wahrnehmungsgebundener Entropie
US5699479A (en) * 1995-02-06 1997-12-16 Lucent Technologies Inc. Tonality for perceptual audio compression based on loudness uncertainty
GB9819920D0 (en) * 1998-09-11 1998-11-04 Nds Ltd Audio encoding system

Also Published As

Publication number Publication date
JP2001053617A (ja) 2001-02-23
EP1074976A2 (de) 2001-02-07
EP1074976A3 (de) 2001-06-27
KR20010021226A (ko) 2001-03-15
JP3762579B2 (ja) 2006-04-05
EP1074976B1 (de) 2004-10-20
ES2231090T3 (es) 2005-05-16
KR100348368B1 (ko) 2002-08-10
US6799164B1 (en) 2004-09-28
DE60015030T2 (de) 2005-11-10

Similar Documents

Publication Publication Date Title
DE60015030D1 (de) Auf Block Umschaltung basierender Teilband-Audiokodierer
DE60042164D1 (de) Kompaktes nadelschutzschild
DE60009336D1 (de) Lautsprechergerät
DE60126934D1 (de) Vermittlungssystem
DE60015448D1 (de) Teilband-Audiokodiersystem
DE69934564D1 (de) Lautsprecher
DE60034297D1 (de) Schalteranordnung
DE19980741T1 (de) Lautsprechervorrichtung
DE60025301D1 (de) Drucktastenschalter
DE60016860D1 (de) Folientastatur
DE69924046D1 (de) Kombinierte Telefonanlage
DE19983479T1 (de) Lautsprecher
DE60116572D1 (de) Stummschalter
FR2766032B1 (fr) Codeur audio
DE60000128T2 (de) Schaltvorrichtung
DE60007578D1 (de) Schalteinheit
DE29900867U1 (de) Fernsprechapparat
DE60022732T2 (de) Audiokodierung
ATA60298A (de) Telefonanlage
DE59913434D1 (de) Schalter
DE29910338U1 (de) Notausschalter
FI19992427A (fi) Puhelinvastaajajärjestelmä
DE59911600D1 (de) Schaltsystem
DE29803342U1 (de) Telefonkosten-Optimierungs-System
DE59914592D1 (de) Lautsprecher

Legal Events

Date Code Title Description
8364 No opposition during term of opposition