DE68917584D1 - Zur Sprachqualitätsverbesserung geeignetes Kodiergerät unter Anwendung einer Doppelanlage zur Pulserzeugung. - Google Patents

Zur Sprachqualitätsverbesserung geeignetes Kodiergerät unter Anwendung einer Doppelanlage zur Pulserzeugung.

Info

Publication number
DE68917584D1
DE68917584D1 DE68917584T DE68917584T DE68917584D1 DE 68917584 D1 DE68917584 D1 DE 68917584D1 DE 68917584 T DE68917584 T DE 68917584T DE 68917584 T DE68917584 T DE 68917584T DE 68917584 D1 DE68917584 D1 DE 68917584D1
Authority
DE
Germany
Prior art keywords
signals
spectrum parameter
sequence
periodicity
pitch parameters
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
DE68917584T
Other languages
English (en)
Other versions
DE68917584T2 (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 DE68917584D1 publication Critical patent/DE68917584D1/de
Publication of DE68917584T2 publication Critical patent/DE68917584T2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE68917584T 1989-03-22 1989-12-15 Zur Sprachqualitätsverbesserung geeignetes Kodiergerät unter Anwendung einer Doppelanlage zur Pulserzeugung. Expired - Fee Related DE68917584T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1071203A JP2903533B2 (ja) 1989-03-22 1989-03-22 音声符号化方式

Publications (2)

Publication Number Publication Date
DE68917584D1 true DE68917584D1 (de) 1994-09-22
DE68917584T2 DE68917584T2 (de) 1994-12-15

Family

ID=13453884

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68917584T Expired - Fee Related DE68917584T2 (de) 1989-03-22 1989-12-15 Zur Sprachqualitätsverbesserung geeignetes Kodiergerät unter Anwendung einer Doppelanlage zur Pulserzeugung.

Country Status (5)

Country Link
US (1) US5027405A (de)
EP (1) EP0390975B1 (de)
JP (1) JP2903533B2 (de)
CA (1) CA2005665C (de)
DE (1) DE68917584T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2051304C (en) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Speech coding and decoding system
US6006174A (en) * 1990-10-03 1999-12-21 Interdigital Technology Coporation Multiple impulse excitation speech encoder and decoder
CA2054849C (en) * 1990-11-02 1996-03-12 Kazunori Ozawa Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits
DE69131339T2 (de) * 1990-11-02 2000-07-13 Nec Corp., Tokio/Tokyo Verfahren zur Kodierung von Sprachparametern, das die Spektrumparameterübertragung mit einer verringerten Bitanzahl ermöglicht
US5528723A (en) * 1990-12-28 1996-06-18 Motorola, Inc. Digital speech coder and method utilizing harmonic noise weighting
FR2702590B1 (fr) * 1993-03-12 1995-04-28 Dominique Massaloux Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
JP2655046B2 (ja) * 1993-09-13 1997-09-17 日本電気株式会社 ベクトル量子化装置
EP0763818B1 (de) * 1995-09-14 2003-05-14 Kabushiki Kaisha Toshiba Verfahren und Filter zur Hervorbebung von Formanten
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
JP2778567B2 (ja) * 1995-12-23 1998-07-23 日本電気株式会社 信号符号化装置及び方法
JP4008607B2 (ja) * 1999-01-22 2007-11-14 株式会社東芝 音声符号化／復号化方法
US7139700B1 (en) * 1999-09-22 2006-11-21 Texas Instruments Incorporated Hybrid speech coding and system
ATE328343T1 (de) * 2002-09-17 2006-06-15 Koninkl Philips Electronics Nv Verfahren zum synthetisieren eines nicht stimmhaften sprachsignals
WO2004051918A1 (en) * 2002-11-27 2004-06-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Watermarking digital representations that have undergone lossy compression
US20050065787A1 (en) * 2003-09-23 2005-03-24 Jacek Stachurski Hybrid speech coding and system
US10373608B2 (en) 2015-10-22 2019-08-06 Texas Instruments Incorporated Time-based frequency tuning of analog-to-information feature extraction
EP3671741A1 (de) * 2018-12-21 2020-06-24 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Audioprozessor und verfahren zum erzeugen eines frequenzverbesserten audiosignals mittels impulsverarbeitung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701954A (en) * 1984-03-16 1987-10-20 American Telephone And Telegraph Company, At&T Bell Laboratories Multipulse LPC speech processing arrangement
GB8621932D0 (en) * 1986-09-11 1986-10-15 British Telecomm Speech coding
US4797926A (en) * 1986-09-11 1989-01-10 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech vocoder
JP2586043B2 (ja) * 1987-05-14 1997-02-26 日本電気株式会社 マルチパルス符号化装置

Also Published As

Publication number Publication date
EP0390975B1 (de) 1994-08-17
JPH02249000A (ja) 1990-10-04
CA2005665C (en) 1994-02-08
DE68917584T2 (de) 1994-12-15
US5027405A (en) 1991-06-25
JP2903533B2 (ja) 1999-06-07
EP0390975A1 (de) 1990-10-10
CA2005665A1 (en) 1990-09-22

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee