DE69708191T2 - Vorrichtung zur Signalkodierung - Google Patents

Vorrichtung zur Signalkodierung

Info

Publication number
DE69708191T2
DE69708191T2 DE69708191T DE69708191T DE69708191T2 DE 69708191 T2 DE69708191 T2 DE 69708191T2 DE 69708191 T DE69708191 T DE 69708191T DE 69708191 T DE69708191 T DE 69708191T DE 69708191 T2 DE69708191 T2 DE 69708191T2
Authority
DE
Germany
Prior art keywords
coding device
signal coding
signal
coding
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
DE69708191T
Other languages
English (en)
Other versions
DE69708191D1 (de
Inventor
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69708191D1 publication Critical patent/DE69708191D1/de
Publication of DE69708191T2 publication Critical patent/DE69708191T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69708191T 1996-04-12 1997-04-11 Vorrichtung zur Signalkodierung Expired - Fee Related DE69708191T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8115678A JPH09281995A (ja) 1996-04-12 1996-04-12 信号符号化装置及び方法

Publications (2)

Publication Number Publication Date
DE69708191D1 DE69708191D1 (de) 2001-12-20
DE69708191T2 true DE69708191T2 (de) 2002-03-28

Family

ID=14668580

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69708191T Expired - Fee Related DE69708191T2 (de) 1996-04-12 1997-04-11 Vorrichtung zur Signalkodierung

Country Status (5)

Country Link
US (1) US5857168A (de)
EP (1) EP0801377B1 (de)
JP (1) JPH09281995A (de)
CA (1) CA2201217C (de)
DE (1) DE69708191T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3344944B2 (ja) * 1997-05-15 2002-11-18 松下電器産業株式会社 オーディオ信号符号化装置，オーディオ信号復号化装置，オーディオ信号符号化方法，及びオーディオ信号復号化方法
JP3246715B2 (ja) 1996-07-01 2002-01-15 松下電器産業株式会社 オーディオ信号圧縮方法，およびオーディオ信号圧縮装置
US6904404B1 (en) 1996-07-01 2005-06-07 Matsushita Electric Industrial Co., Ltd. Multistage inverse quantization having the plurality of frequency bands
WO1998020483A1 (fr) * 1996-11-07 1998-05-14 Matsushita Electric Industrial Co., Ltd. Generateur de vecteur de source sonore, codeur et decodeur vocal
US6208962B1 (en) * 1997-04-09 2001-03-27 Nec Corporation Signal coding system
JP3166697B2 (ja) * 1998-01-14 2001-05-14 日本電気株式会社 音声符号化・復号装置及びシステム
JP3541680B2 (ja) 1998-06-15 2004-07-14 日本電気株式会社 音声音楽信号の符号化装置および復号装置
JP2001318698A (ja) * 2000-05-10 2001-11-16 Nec Corp 音声符号化装置及び音声復号化装置
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
US7596486B2 (en) * 2004-05-19 2009-09-29 Nokia Corporation Encoding an audio signal using different audio coder modes
US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
EP2116997A4 (de) * 2007-03-02 2011-11-23 Panasonic Corp Audiodecodierungseinrichtung und audiodecodierungsverfahren
CN101903944B (zh) * 2007-12-18 2013-04-03 Lg电子株式会社 用于处理音频信号的方法和装置
GB2473266A (en) * 2009-09-07 2011-03-09 Nokia Corp An improved filter bank
EP2980798A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Harmonizitätsabhängige Steuerung eines harmonischen Filterwerkzeugs
US9729416B1 (en) 2016-07-11 2017-08-08 Extrahop Networks, Inc. Anomaly detection using device relationship graphs
US10063434B1 (en) 2017-08-29 2018-08-28 Extrahop Networks, Inc. Classifying applications or activities based on network behavior
US10116679B1 (en) 2018-05-18 2018-10-30 Extrahop Networks, Inc. Privilege inference and monitoring based on network behavior

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261027A (en) * 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
DE69133296T2 (de) * 1990-02-22 2004-01-29 Nec Corp Sprachcodierer
US5170396A (en) * 1990-06-14 1992-12-08 Introtek International, L.P. Data valid detector circuit for manchester encoded data
JP3114197B2 (ja) * 1990-11-02 2000-12-04 日本電気株式会社 音声パラメータ符号化方法
JP3151874B2 (ja) * 1991-02-26 2001-04-03 日本電気株式会社 音声パラメータ符号化方式および装置
JP3143956B2 (ja) * 1991-06-27 2001-03-07 日本電気株式会社 音声パラメータ符号化方式
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
US5598504A (en) * 1993-03-15 1997-01-28 Nec Corporation Speech coding system to reduce distortion through signal overlap
JP2970407B2 (ja) * 1994-06-21 1999-11-02 日本電気株式会社 音声の励振信号符号化装置
CA2127520C (en) * 1994-07-06 2001-01-16 Gordon J. Reesor Signal processing circuit
JPH08272395A (ja) * 1995-03-31 1996-10-18 Nec Corp 音声符号化装置

Also Published As

Publication number Publication date
JPH09281995A (ja) 1997-10-31
CA2201217A1 (en) 1997-10-12
EP0801377B1 (de) 2001-11-14
US5857168A (en) 1999-01-05
EP0801377A3 (de) 1998-09-23
DE69708191D1 (de) 2001-12-20
EP0801377A2 (de) 1997-10-15
CA2201217C (en) 2000-07-25

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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