DE69133458D1 - Verfahren zur Sprachquantisierung und Fehlerkorrektur - Google Patents

Verfahren zur Sprachquantisierung und Fehlerkorrektur

Info

Publication number
DE69133458D1
DE69133458D1 DE69133458T DE69133458T DE69133458D1 DE 69133458 D1 DE69133458 D1 DE 69133458D1 DE 69133458 T DE69133458 T DE 69133458T DE 69133458 T DE69133458 T DE 69133458T DE 69133458 D1 DE69133458 D1 DE 69133458D1
Authority
DE
Germany
Prior art keywords
error correction
speech quantization
quantization
speech
correction
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
DE69133458T
Other languages
English (en)
Other versions
DE69133458T2 (de
Inventor
John C Hardwick
Jae S Lim
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.)
Digital Voice Systems Inc
Original Assignee
Digital Voice Systems 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 Digital Voice Systems Inc filed Critical Digital Voice Systems Inc
Publication of DE69133458D1 publication Critical patent/DE69133458D1/de
Application granted granted Critical
Publication of DE69133458T2 publication Critical patent/DE69133458T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • 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
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • 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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Error Detection And Correction (AREA)
DE69133458T 1990-12-05 1991-12-04 Verfahren zur Sprachquantisierung und Fehlerkorrektur Expired - Lifetime DE69133458T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US624878 1984-06-27
US07/624,878 US5226084A (en) 1990-12-05 1990-12-05 Methods for speech quantization and error correction

Publications (2)

Publication Number Publication Date
DE69133458D1 true DE69133458D1 (de) 2005-06-09
DE69133458T2 DE69133458T2 (de) 2006-02-23

Family

ID=24503712

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69132013T Expired - Lifetime DE69132013T2 (de) 1990-12-05 1991-12-04 Verfahren für sprachquantisierung und fehlerkorrektur
DE69133458T Expired - Lifetime DE69133458T2 (de) 1990-12-05 1991-12-04 Verfahren zur Sprachquantisierung und Fehlerkorrektur
DE69133058T Expired - Lifetime DE69133058T2 (de) 1990-12-05 1991-12-04 Verfahren zur Kodierung von Sprachsignalen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69132013T Expired - Lifetime DE69132013T2 (de) 1990-12-05 1991-12-04 Verfahren für sprachquantisierung und fehlerkorrektur

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69133058T Expired - Lifetime DE69133058T2 (de) 1990-12-05 1991-12-04 Verfahren zur Kodierung von Sprachsignalen

Country Status (7)

Country Link
US (1) US5226084A (de)
EP (3) EP0560931B1 (de)
JP (1) JP3467270B2 (de)
AU (1) AU657508B2 (de)
CA (1) CA2096425C (de)
DE (3) DE69132013T2 (de)
WO (1) WO1992010830A1 (de)

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Also Published As

Publication number Publication date
US5226084A (en) 1993-07-06
JPH06507252A (ja) 1994-08-11
DE69132013T2 (de) 2000-11-02
EP1211669A2 (de) 2002-06-05
AU657508B2 (en) 1995-03-16
EP0893791B1 (de) 2002-07-03
EP1211669B1 (de) 2005-05-04
AU9147091A (en) 1992-07-08
JP3467270B2 (ja) 2003-11-17
EP0560931A4 (de) 1995-07-26
EP0893791A2 (de) 1999-01-27
EP0560931A1 (de) 1993-09-22
CA2096425A1 (en) 1992-06-06
EP0560931B1 (de) 2000-03-01
EP0893791A3 (de) 1999-05-19
DE69133058D1 (de) 2002-08-08
DE69133058T2 (de) 2002-10-31
DE69133458T2 (de) 2006-02-23
WO1992010830A1 (en) 1992-06-25
DE69132013D1 (de) 2000-04-06
EP1211669A3 (de) 2003-02-05
CA2096425C (en) 2005-03-22

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: DIGITAL VOICE SYSTEMS, INC., WESTFORD, MASS., US

8364 No opposition during term of opposition