DE69228790T2 - Kodierungssystem für Sprachsignale zur Sprachsignalübertragung mit niedriger Bitrate - Google Patents

Kodierungssystem für Sprachsignale zur Sprachsignalübertragung mit niedriger Bitrate

Info

Publication number
DE69228790T2
DE69228790T2 DE69228790T DE69228790T DE69228790T2 DE 69228790 T2 DE69228790 T2 DE 69228790T2 DE 69228790 T DE69228790 T DE 69228790T DE 69228790 T DE69228790 T DE 69228790T DE 69228790 T2 DE69228790 T2 DE 69228790T2
Authority
DE
Germany
Prior art keywords
signal transmission
speech
bit rate
coding system
low bit
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
DE69228790T
Other languages
English (en)
Other versions
DE69228790D1 (de
Inventor
Tetsu Taguchi
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
Publication of DE69228790D1 publication Critical patent/DE69228790D1/de
Application granted granted Critical
Publication of DE69228790T2 publication Critical patent/DE69228790T2/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
    • G10L19/04—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
    • G10L19/113—Regular pulse 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)
  • Time-Division Multiplex Systems (AREA)
DE69228790T 1991-12-03 1992-12-03 Kodierungssystem für Sprachsignale zur Sprachsignalübertragung mit niedriger Bitrate Expired - Lifetime DE69228790T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31942791 1991-12-03

Publications (2)

Publication Number Publication Date
DE69228790D1 DE69228790D1 (de) 1999-05-06
DE69228790T2 true DE69228790T2 (de) 1999-09-02

Family

ID=18110076

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228790T Expired - Lifetime DE69228790T2 (de) 1991-12-03 1992-12-03 Kodierungssystem für Sprachsignale zur Sprachsignalübertragung mit niedriger Bitrate

Country Status (5)

Country Link
US (1) US5557705A (de)
EP (1) EP0545403B1 (de)
AU (1) AU655090B2 (de)
CA (1) CA2084323C (de)
DE (1) DE69228790T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2947012B2 (ja) * 1993-07-07 1999-09-13 日本電気株式会社 音声符号化装置並びにその分析器及び合成器
US5854998A (en) * 1994-04-29 1998-12-29 Audiocodes Ltd. Speech processing system quantizer of single-gain pulse excitation in speech coder
US5568588A (en) * 1994-04-29 1996-10-22 Audiocodes Ltd. Multi-pulse analysis speech processing System and method
CA2213909C (en) * 1996-08-26 2002-01-22 Nec Corporation High quality speech coder at low bit rates
WO1998035341A2 (en) * 1997-02-10 1998-08-13 Koninklijke Philips Electronics N.V. Transmission system for transmitting speech signals
KR100446594B1 (ko) * 1997-04-15 2005-06-02 삼성전자주식회사 음성선스펙트럼주파수의부호화/복호화장치및그방법
DE19860133C2 (de) * 1998-12-17 2001-11-22 Cortologic Ag Verfahren und Vorrichtung zur Sprachkompression
EP2030199B1 (de) * 2006-05-30 2009-10-28 Koninklijke Philips Electronics N.V. Linear-prädiktive codierung eines audiosignals

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1219079A (en) * 1983-06-27 1987-03-10 Tetsu Taguchi Multi-pulse type vocoder
JPS60239798A (ja) * 1984-05-14 1985-11-28 日本電気株式会社 音声信号符号化／復号化装置
JPH0754440B2 (ja) * 1986-06-09 1995-06-07 日本電気株式会社 音声分析合成装置
CA1312673C (en) * 1986-09-18 1993-01-12 Akira Fukui Method and apparatus for speech coding
CA1336841C (en) * 1987-04-08 1995-08-29 Tetsu Taguchi Multi-pulse type coding system
EP0374941B1 (de) * 1988-12-23 1995-08-09 Nec Corporation Sprachübertragungssystem unter Anwendung von Mehrimpulsanregung
DE69031749T2 (de) * 1989-06-14 1998-05-14 Nec Corp Einrichtung und Verfahren zur Sprachkodierung mit Regular-Pulsanregung
US5228086A (en) * 1990-05-18 1993-07-13 Matsushita Electric Industrial Co., Ltd. Speech encoding apparatus and related decoding apparatus
US5305421A (en) * 1991-08-28 1994-04-19 Itt Corporation Low bit rate speech coding system and compression

Also Published As

Publication number Publication date
AU2987192A (en) 1993-06-10
CA2084323A1 (en) 1993-06-04
CA2084323C (en) 1996-12-03
EP0545403B1 (de) 1999-03-31
DE69228790D1 (de) 1999-05-06
EP0545403A2 (de) 1993-06-09
EP0545403A3 (en) 1993-07-07
US5557705A (en) 1996-09-17
AU655090B2 (en) 1994-12-01

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Legal Events

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8364 No opposition during term of opposition