EP0212323A3 - Method and apparatus for generating a signal transformation and the use thereof in signal processings - Google Patents

Method and apparatus for generating a signal transformation and the use thereof in signal processings Download PDF

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Publication number
EP0212323A3
EP0212323A3 EP86110212A EP86110212A EP0212323A3 EP 0212323 A3 EP0212323 A3 EP 0212323A3 EP 86110212 A EP86110212 A EP 86110212A EP 86110212 A EP86110212 A EP 86110212A EP 0212323 A3 EP0212323 A3 EP 0212323A3
Authority
EP
European Patent Office
Prior art keywords
signal
transformation
reference position
sub
generating
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Withdrawn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
EP86110212A
Other languages
German (de)
French (fr)
Other versions
EP0212323A2 (en
Inventor
Brian Lee Scott
Robert Gray Goodman
John Mark Newell
Lloyd Allen Smith
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.)
Scott Instruments Corp
Original Assignee
Scott Instruments 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 Scott Instruments Corp filed Critical Scott Instruments Corp
Publication of EP0212323A2 publication Critical patent/EP0212323A2/en
Publication of EP0212323A3 publication Critical patent/EP0212323A3/en
Withdrawn legal-status Critical Current

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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

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)
  • Analogue/Digital Conversion (AREA)

Abstract

A method and apparatus for generating a signal transformation useful in signal processing is provided. According to the preferred embodiment, a signal, e.g., a speech waveform, is first converted into a sequence of digital data samples, and a reference position along a first sub-part of the sequence is then selected. A "weighted" histogram corresponding to the reference position is then generated according to a correlation function. Thereafter, a new reference position is selected, for example, at a sub-part of the sequence located a pitch period of the signal from the original reference position, and an additional histogram is generated for this sub-part. The plurality of histograms comprise the transformation of the signal, which retains a substantial part of the informational content of the original signal. Therefore, the transformation is then used as the signal itself in signal processing applications such as speech compression and synthesis.
EP86110212A 1985-08-29 1986-07-24 Method and apparatus for generating a signal transformation and the use thereof in signal processings Withdrawn EP0212323A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77053085A 1985-08-29 1985-08-29
US770530 2001-01-25

Publications (2)

Publication Number Publication Date
EP0212323A2 EP0212323A2 (en) 1987-03-04
EP0212323A3 true EP0212323A3 (en) 1988-03-16

Family

ID=25088868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110212A Withdrawn EP0212323A3 (en) 1985-08-29 1986-07-24 Method and apparatus for generating a signal transformation and the use thereof in signal processings

Country Status (2)

Country Link
EP (1) EP0212323A3 (en)
JP (1) JPS6252600A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025471A (en) * 1989-08-04 1991-06-18 Scott Instruments Corporation Method and apparatus for extracting information-bearing portions of a signal for recognizing varying instances of similar patterns
WO1998042077A1 (en) * 1997-03-18 1998-09-24 Nippon Columbia Co., Ltd. Distortion detecting device, distortion correcting device, and distortion correcting method for digital audio signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004096A (en) * 1975-02-18 1977-01-18 The United States Of America As Represented By The Secretary Of The Army Process for extracting pitch information
FR2337393A1 (en) * 1975-12-29 1977-07-29 Dialog Syst METHOD AND APPARATUS FOR SPEECH ANALYSIS AND RECOGNITION

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939077C2 (en) * 1979-09-27 1987-04-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Method and arrangement for determining characteristic values from a time-limited noise signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004096A (en) * 1975-02-18 1977-01-18 The United States Of America As Represented By The Secretary Of The Army Process for extracting pitch information
FR2337393A1 (en) * 1975-12-29 1977-07-29 Dialog Syst METHOD AND APPARATUS FOR SPEECH ANALYSIS AND RECOGNITION

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF THE AUDIO ENGINEERING SOCIETY, vol. 10, no. 2, April 1962, pages 163-166; M.R. SCHROEDER: "Correlation techniques for speech bandwidth compression" *
SIGNAL PROCESSING, vol. 5, no. 6, November 193, pages 491-513, Elsevier Science Publishers B.V., Amsterdam, NL; E. AMBIKAIRAJAH et al.: "The time-domain periodogram algorithm" *

Also Published As

Publication number Publication date
JPS6252600A (en) 1987-03-07
EP0212323A2 (en) 1987-03-04

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCOTT, BRIAN LEE

Inventor name: NEWELL, JOHN MARK

Inventor name: SMITH, LLOYD ALLEN

Inventor name: GOODMAN, ROBERT GRAY