ATE36206T1 - IMPROVED METHOD AND MEANS FOR DETERMINING COEFFICIENTS FOR LINEAR PREDICTIVE CODING. - Google Patents

IMPROVED METHOD AND MEANS FOR DETERMINING COEFFICIENTS FOR LINEAR PREDICTIVE CODING.

Info

Publication number
ATE36206T1
ATE36206T1 AT84900575T AT84900575T ATE36206T1 AT E36206 T1 ATE36206 T1 AT E36206T1 AT 84900575 T AT84900575 T AT 84900575T AT 84900575 T AT84900575 T AT 84900575T AT E36206 T1 ATE36206 T1 AT E36206T1
Authority
AT
Austria
Prior art keywords
improved method
residuals
matrices
correlation
reflection coefficient
Prior art date
Application number
AT84900575T
Other languages
German (de)
Inventor
Ira Alan Gerson
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE36206T1 publication Critical patent/ATE36206T1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

An improved method and means of determining reflection coefficients that characterize an electrical signal obtains characteristics of an all-zero inverse lattice filter. The reflection coefficients are obtained by filtering the signal, sampling the filtered signal, obtaining the elements of a correlation matrix from the samples, initializing values of matrices of forward residuals, backward residuals, and cross correlation of residuals, combining matrix elements to obtain a first reflection coefficient, removing from the forward, backward an cross-correlation matrices the effect of the first reflection coefficient, calculating from the revised matrices a second reflection coefficient, and repeating the calculations to the desired order.
AT84900575T 1983-01-03 1983-12-22 IMPROVED METHOD AND MEANS FOR DETERMINING COEFFICIENTS FOR LINEAR PREDICTIVE CODING. ATE36206T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US45492983A 1983-01-03 1983-01-03
PCT/US1983/002038 WO1984002814A1 (en) 1983-01-03 1983-12-22 Improved method and means of determining coefficients for linear predictive coding
EP84900575A EP0135512B1 (en) 1983-01-03 1983-12-22 Improved method and means of determining coefficients for linear predictive coding

Publications (1)

Publication Number Publication Date
ATE36206T1 true ATE36206T1 (en) 1988-08-15

Family

ID=23806651

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84900575T ATE36206T1 (en) 1983-01-03 1983-12-22 IMPROVED METHOD AND MEANS FOR DETERMINING COEFFICIENTS FOR LINEAR PREDICTIVE CODING.

Country Status (9)

Country Link
EP (1) EP0135512B1 (en)
JP (1) JPS60500274A (en)
AT (1) ATE36206T1 (en)
AU (1) AU566370B2 (en)
DE (1) DE3377599D1 (en)
DK (1) DK417184A (en)
FI (1) FI843448A (en)
NO (1) NO843498L (en)
WO (1) WO1984002814A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1318985A (en) * 1970-02-07 1973-05-31 Nippon Telegraph & Telephone Audio response apparatus
GB2026289B (en) * 1978-04-12 1982-04-21 Secr Defence Self-adaptive linear prediction filters
JPS597120B2 (en) * 1978-11-24 1984-02-16 日本電気株式会社 speech analysis device
JPS55164700U (en) * 1979-05-14 1980-11-26
JPS5853358B2 (en) * 1980-03-31 1983-11-29 株式会社東芝 speech analysis device
US4378469A (en) * 1981-05-26 1983-03-29 Motorola Inc. Human voice analyzing apparatus

Also Published As

Publication number Publication date
DK417184D0 (en) 1984-08-31
WO1984002814A1 (en) 1984-07-19
FI843448A0 (en) 1984-09-03
EP0135512A4 (en) 1985-06-10
JPS60500274A (en) 1985-02-28
AU566370B2 (en) 1987-10-15
AU2439184A (en) 1984-08-02
EP0135512B1 (en) 1988-08-03
DE3377599D1 (en) 1988-09-08
EP0135512A1 (en) 1985-04-03
FI843448A (en) 1984-09-03
NO843498L (en) 1984-09-03
DK417184A (en) 1984-10-04

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