CA1236922A - Method and apparatus for coding digital signals - Google Patents

Method and apparatus for coding digital signals

Info

Publication number
CA1236922A
CA1236922A CA000442281A CA442281A CA1236922A CA 1236922 A CA1236922 A CA 1236922A CA 000442281 A CA000442281 A CA 000442281A CA 442281 A CA442281 A CA 442281A CA 1236922 A CA1236922 A CA 1236922A
Authority
CA
Canada
Prior art keywords
signal
coefficients
excitation
covariance
block
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
Application number
CA000442281A
Other languages
English (en)
French (fr)
Inventor
Paul Mermelstein
Haim Garten
Michael George Beyrouti
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA000442281A priority Critical patent/CA1236922A/en
Priority to DE8484112041T priority patent/DE3478065D1/de
Priority to EP84112041A priority patent/EP0149724B1/de
Priority to AT84112041T priority patent/ATE42853T1/de
Priority to JP59250655A priority patent/JPS60185432A/ja
Application granted granted Critical
Publication of CA1236922A publication Critical patent/CA1236922A/en
Expired 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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (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)
  • Analogue/Digital Conversion (AREA)
CA000442281A 1983-11-30 1983-11-30 Method and apparatus for coding digital signals Expired CA1236922A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA000442281A CA1236922A (en) 1983-11-30 1983-11-30 Method and apparatus for coding digital signals
DE8484112041T DE3478065D1 (en) 1983-11-30 1984-10-08 Method and apparatus for coding digital signals
EP84112041A EP0149724B1 (de) 1983-11-30 1984-10-08 Verfahren und Einrichtung zur Codierung von digitalen Signalen
AT84112041T ATE42853T1 (de) 1983-11-30 1984-10-08 Verfahren und einrichtung zur codierung von digitalen signalen.
JP59250655A JPS60185432A (ja) 1983-11-30 1984-11-29 デイジタル信号符号化及び剤号化装置及び方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000442281A CA1236922A (en) 1983-11-30 1983-11-30 Method and apparatus for coding digital signals

Publications (1)

Publication Number Publication Date
CA1236922A true CA1236922A (en) 1988-05-17

Family

ID=4126639

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000442281A Expired CA1236922A (en) 1983-11-30 1983-11-30 Method and apparatus for coding digital signals

Country Status (5)

Country Link
EP (1) EP0149724B1 (de)
JP (1) JPS60185432A (de)
AT (1) ATE42853T1 (de)
CA (1) CA1236922A (de)
DE (1) DE3478065D1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048088A (en) * 1988-03-28 1991-09-10 Nec Corporation Linear predictive speech analysis-synthesis apparatus
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
WO1995001673A1 (en) * 1993-06-30 1995-01-12 Royal Melbourne Institute Of Technology Filter windows for fourier transform signal compression
WO1999041737A1 (en) * 1998-02-17 1999-08-19 Motorola Inc. Method and apparatus for high speed determination of an optimum vector in a fixed codebook
KR100587099B1 (ko) 2003-05-10 2006-06-07 엘지전자 주식회사 사이클론 방식 진공 청소기의 집진 유니트

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder

Also Published As

Publication number Publication date
ATE42853T1 (de) 1989-05-15
EP0149724B1 (de) 1989-05-03
DE3478065D1 (en) 1989-06-08
EP0149724A1 (de) 1985-07-31
JPS60185432A (ja) 1985-09-20

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