DE69132013T2 - Verfahren für sprachquantisierung und fehlerkorrektur - Google Patents

Verfahren für sprachquantisierung und fehlerkorrektur

Info

Publication number
DE69132013T2
DE69132013T2 DE69132013T DE69132013T DE69132013T2 DE 69132013 T2 DE69132013 T2 DE 69132013T2 DE 69132013 T DE69132013 T DE 69132013T DE 69132013 T DE69132013 T DE 69132013T DE 69132013 T2 DE69132013 T2 DE 69132013T2
Authority
DE
Germany
Prior art keywords
procedure
error correction
quantization
voice
voice quantization
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
DE69132013T
Other languages
English (en)
Other versions
DE69132013D1 (de
Inventor
C Hardwick
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 DE69132013D1 publication Critical patent/DE69132013D1/de
Application granted granted Critical
Publication of DE69132013T2 publication Critical patent/DE69132013T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
DE69132013T 1990-12-05 1991-12-04 Verfahren für sprachquantisierung und fehlerkorrektur Expired - Lifetime DE69132013T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/624,878 US5226084A (en) 1990-12-05 1990-12-05 Methods for speech quantization and error correction
PCT/US1991/009135 WO1992010830A1 (en) 1990-12-05 1991-12-04 Methods for speech quantization and error correction

Publications (2)

Publication Number Publication Date
DE69132013D1 DE69132013D1 (de) 2000-04-06
DE69132013T2 true DE69132013T2 (de) 2000-11-02

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
DE69133058T Expired - Lifetime DE69133058T2 (de) 1990-12-05 1991-12-04 Verfahren zur Kodierung von Sprachsignalen
DE69133458T Expired - Lifetime DE69133458T2 (de) 1990-12-05 1991-12-04 Verfahren zur Sprachquantisierung und Fehlerkorrektur

Family Applications After (2)

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

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
AU9147091A (en) 1992-07-08
DE69133458T2 (de) 2006-02-23
EP1211669A3 (de) 2003-02-05
DE69133058T2 (de) 2002-10-31
CA2096425C (en) 2005-03-22
DE69133458D1 (de) 2005-06-09
DE69133058D1 (de) 2002-08-08
EP0893791A2 (de) 1999-01-27
EP0893791B1 (de) 2002-07-03
EP0560931B1 (de) 2000-03-01
EP1211669A2 (de) 2002-06-05
CA2096425A1 (en) 1992-06-06
DE69132013D1 (de) 2000-04-06
EP0560931A4 (de) 1995-07-26
AU657508B2 (en) 1995-03-16
EP0893791A3 (de) 1999-05-19
JP3467270B2 (ja) 2003-11-17
WO1992010830A1 (en) 1992-06-25
EP0560931A1 (de) 1993-09-22
EP1211669B1 (de) 2005-05-04
US5226084A (en) 1993-07-06
JPH06507252A (ja) 1994-08-11

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