DE68923771D1 - Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung. - Google Patents

Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung.

Info

Publication number
DE68923771D1
DE68923771D1 DE68923771T DE68923771T DE68923771D1 DE 68923771 D1 DE68923771 D1 DE 68923771D1 DE 68923771 T DE68923771 T DE 68923771T DE 68923771 T DE68923771 T DE 68923771T DE 68923771 D1 DE68923771 D1 DE 68923771D1
Authority
DE
Germany
Prior art keywords
sound
signals
sound source
judged signal
representative
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
DE68923771T
Other languages
English (en)
Other versions
DE68923771T2 (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
Priority claimed from JP63326805A external-priority patent/JPH02170199A/ja
Priority claimed from JP1001849A external-priority patent/JPH02181800A/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE68923771D1 publication Critical patent/DE68923771D1/de
Publication of DE68923771T2 publication Critical patent/DE68923771T2/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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
DE68923771T 1988-12-23 1989-12-22 Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung. Expired - Fee Related DE68923771T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63326805A JPH02170199A (ja) 1988-12-23 1988-12-23 音声符号化復号化方式
JP1001849A JPH02181800A (ja) 1989-01-06 1989-01-06 音声符号化復号化方式

Publications (2)

Publication Number Publication Date
DE68923771D1 true DE68923771D1 (de) 1995-09-14
DE68923771T2 DE68923771T2 (de) 1995-12-14

Family

ID=26335140

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68923771T Expired - Fee Related DE68923771T2 (de) 1988-12-23 1989-12-22 Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung.

Country Status (4)

Country Link
US (1) US5091946A (de)
EP (1) EP0374941B1 (de)
CA (1) CA2006487C (de)
DE (1) DE68923771T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230038A (en) * 1989-01-27 1993-07-20 Fielder Louis D Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0402947B1 (de) * 1989-06-14 1997-11-26 Nec Corporation Einrichtung und Verfahren zur Sprachkodierung mit Regular-Pulsanregung
CA2051304C (en) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Speech coding and decoding system
FR2668288B1 (fr) * 1990-10-19 1993-01-15 Di Francesco Renaud Procede de transmission, a bas debit, par codage celp d'un signal de parole et systeme correspondant.
CA2084323C (en) * 1991-12-03 1996-12-03 Tetsu Taguchi Speech signal encoding system capable of transmitting a speech signal at a low bit rate
JPH05307399A (ja) * 1992-05-01 1993-11-19 Sony Corp 音声分析方式
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
US5574825A (en) * 1994-03-14 1996-11-12 Lucent Technologies Inc. Linear prediction coefficient generation during frame erasure or packet loss
AU696092B2 (en) * 1995-01-12 1998-09-03 Digital Voice Systems, Inc. Estimation of excitation parameters
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
GB2312360B (en) * 1996-04-12 2001-01-24 Olympus Optical Co Voice signal coding apparatus
JP3618217B2 (ja) * 1998-02-26 2005-02-09 パイオニア株式会社 音声のピッチ符号化方法及び音声のピッチ符号化装置並びに音声のピッチ符号化プログラムが記録された記録媒体
US6304842B1 (en) * 1999-06-30 2001-10-16 Glenayre Electronics, Inc. Location and coding of unvoiced plosives in linear predictive coding of speech
BRPI0514998A (pt) * 2004-08-26 2008-07-01 Matsushita Electric Ind Co Ltd equipamento de codificação de sinal de canal múltiplo e equipamento de decodificação de sinal de canal múltiplo
CN100466600C (zh) * 2005-03-08 2009-03-04 华为技术有限公司 下一代网络中实现接入配置模式资源预留的方法
US8364492B2 (en) * 2006-07-13 2013-01-29 Nec Corporation Apparatus, method and program for giving warning in connection with inputting of unvoiced speech

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0683149B2 (ja) * 1984-04-04 1994-10-19 日本電気株式会社 音声帯域信号符号化・復号化装置
JPH0632032B2 (ja) * 1984-03-06 1994-04-27 日本電気株式会社 音声帯域信号符号化方法とその装置
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
EP0374941A3 (de) 1991-10-16
DE68923771T2 (de) 1995-12-14
EP0374941B1 (de) 1995-08-09
CA2006487C (en) 1994-01-11
CA2006487A1 (en) 1990-06-23
EP0374941A2 (de) 1990-06-27
US5091946A (en) 1992-02-25

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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