EP0052120A1 - Verbesserungen in der signalverarbeitung - Google Patents

Verbesserungen in der signalverarbeitung

Info

Publication number
EP0052120A1
EP0052120A1 EP81901295A EP81901295A EP0052120A1 EP 0052120 A1 EP0052120 A1 EP 0052120A1 EP 81901295 A EP81901295 A EP 81901295A EP 81901295 A EP81901295 A EP 81901295A EP 0052120 A1 EP0052120 A1 EP 0052120A1
Authority
EP
European Patent Office
Prior art keywords
coefficients
data
filter
pef
order
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.)
Withdrawn
Application number
EP81901295A
Other languages
English (en)
French (fr)
Other versions
EP0052120A4 (de
Inventor
John Sinclair Reid
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0052120A1 publication Critical patent/EP0052120A1/de
Publication of EP0052120A4 publication Critical patent/EP0052120A4/de
Withdrawn legal-status Critical Current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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/15—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being formant information

Definitions

  • a more sophisticated time domain approach used in the analysis of speech and of which the invention is a special case, is the linear prediction method. Under this method, successive time segments of the signal are each assumed to be the outcome of a stationary autoregressive random process.
  • PEF prediction error filter
  • Another simplification is to compute each variance or covariance recursively, viz:

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)
EP19810901295 1980-05-19 1981-05-18 Verbesserungen in der signalverarbeitung. Withdrawn EP0052120A4 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPE360580 1980-05-19
AU3605/80 1980-05-19
AUPE555680 1980-09-12
AU5556/80 1980-09-12

Publications (2)

Publication Number Publication Date
EP0052120A1 true EP0052120A1 (de) 1982-05-26
EP0052120A4 EP0052120A4 (de) 1983-12-09

Family

ID=25642381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810901295 Withdrawn EP0052120A4 (de) 1980-05-19 1981-05-18 Verbesserungen in der signalverarbeitung.

Country Status (5)

Country Link
EP (1) EP0052120A4 (de)
JP (1) JPS57500901A (de)
BR (1) BR8108616A (de)
DK (1) DK21282A (de)
WO (1) WO1981003392A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296374A (en) * 1963-06-28 1967-01-03 Ibm Speech analyzing system
US3327057A (en) * 1963-11-08 1967-06-20 Bell Telephone Labor Inc Speech analysis
US3335225A (en) * 1964-02-20 1967-08-08 Melpar Inc Formant period tracker
US3369076A (en) * 1964-05-18 1968-02-13 Ibm Formant locating system
US3649765A (en) * 1969-10-29 1972-03-14 Bell Telephone Labor Inc Speech analyzer-synthesizer system employing improved formant extractor
US4032711A (en) * 1975-12-31 1977-06-28 Bell Telephone Laboratories, Incorporated Speaker recognition arrangement
US4092493A (en) * 1976-11-30 1978-05-30 Bell Telephone Laboratories, Incorporated Speech recognition system
US4220819A (en) * 1979-03-30 1980-09-02 Bell Telephone Laboratories, Incorporated Residual excited predictive speech coding system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-26, no. 6, December 1978, NEW YORK (US) *
See also references of WO8103392A1 *

Also Published As

Publication number Publication date
WO1981003392A1 (en) 1981-11-26
EP0052120A4 (de) 1983-12-09
DK21282A (da) 1982-01-19
BR8108616A (pt) 1982-04-06
JPS57500901A (de) 1982-05-20

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19820524

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Withdrawal date: 19840525