GB2205469B - Multi-pulse type coding system - Google Patents

Multi-pulse type coding system

Info

Publication number
GB2205469B
GB2205469B GB8808318A GB8808318A GB2205469B GB 2205469 B GB2205469 B GB 2205469B GB 8808318 A GB8808318 A GB 8808318A GB 8808318 A GB8808318 A GB 8808318A GB 2205469 B GB2205469 B GB 2205469B
Authority
GB
United Kingdom
Prior art keywords
coding system
pulse type
type coding
pulse
type
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
GB8808318A
Other versions
GB2205469A (en
GB8808318D0 (en
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 GB8808318D0 publication Critical patent/GB8808318D0/en
Publication of GB2205469A publication Critical patent/GB2205469A/en
Application granted granted Critical
Publication of GB2205469B publication Critical patent/GB2205469B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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)
GB8808318A 1987-04-08 1988-04-08 Multi-pulse type coding system Expired - Lifetime GB2205469B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8766987 1987-04-08

Publications (3)

Publication Number Publication Date
GB8808318D0 GB8808318D0 (en) 1988-05-11
GB2205469A GB2205469A (en) 1988-12-07
GB2205469B true GB2205469B (en) 1991-04-03

Family

ID=13921347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8808318A Expired - Lifetime GB2205469B (en) 1987-04-08 1988-04-08 Multi-pulse type coding system

Country Status (3)

Country Link
AU (1) AU617993B2 (en)
CA (1) CA1336841C (en)
GB (1) GB2205469B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5351338A (en) * 1992-07-06 1994-09-27 Telefonaktiebolaget L M Ericsson Time variable spectral analysis based on interpolation for speech coding
RU2464649C1 (en) * 2011-06-01 2012-10-20 Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." Audio signal processing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8302985A (en) * 1983-08-26 1985-03-18 Philips Nv MULTIPULSE EXCITATION LINEAR PREDICTIVE VOICE CODER.
NL8500843A (en) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv MULTIPULS EXCITATION LINEAR-PREDICTIVE VOICE CODER.
JPH0738118B2 (en) * 1987-02-04 1995-04-26 日本電気株式会社 Multi-pulse encoder

Also Published As

Publication number Publication date
AU617993B2 (en) 1991-12-12
CA1336841C (en) 1995-08-29
GB2205469A (en) 1988-12-07
GB8808318D0 (en) 1988-05-11
AU1440288A (en) 1988-10-13

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20080407