DE3789476D1 - Digitaler Vocoder. - Google Patents

Digitaler Vocoder.

Info

Publication number
DE3789476D1
DE3789476D1 DE87307732T DE3789476T DE3789476D1 DE 3789476 D1 DE3789476 D1 DE 3789476D1 DE 87307732 T DE87307732 T DE 87307732T DE 3789476 T DE3789476 T DE 3789476T DE 3789476 D1 DE3789476 D1 DE 3789476D1
Authority
DE
Germany
Prior art keywords
pitch
harmonic
fundamental
amplitudes
harmonics
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 - Fee Related
Application number
DE87307732T
Other languages
English (en)
Other versions
DE3789476T2 (de
Inventor
Edward Charles Bronson
Walter Thornley Hartwell
Willem Bastiaan Kleijn
Dimitrios Panos Prezas
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co 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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of DE3789476D1 publication Critical patent/DE3789476D1/de
Application granted granted Critical
Publication of DE3789476T2 publication Critical patent/DE3789476T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/04—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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/90—Pitch determination of speech signals
    • 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
    • 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
    • G10L19/093—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using sinusoidal excitation models
DE3789476T 1986-09-11 1987-09-02 Digitaler Vocoder. Expired - Fee Related DE3789476T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/906,523 US4797926A (en) 1986-09-11 1986-09-11 Digital speech vocoder

Publications (2)

Publication Number Publication Date
DE3789476D1 true DE3789476D1 (de) 1994-05-05
DE3789476T2 DE3789476T2 (de) 1994-09-15

Family

ID=25422593

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789476T Expired - Fee Related DE3789476T2 (de) 1986-09-11 1987-09-02 Digitaler Vocoder.

Country Status (8)

Country Link
US (1) US4797926A (de)
EP (1) EP0260053B1 (de)
JP (1) JPH0833754B2 (de)
KR (1) KR960002388B1 (de)
AT (1) ATE103728T1 (de)
AU (1) AU580218B2 (de)
CA (1) CA1307345C (de)
DE (1) DE3789476T2 (de)

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Also Published As

Publication number Publication date
EP0260053B1 (de) 1994-03-30
JPS6370900A (ja) 1988-03-31
US4797926A (en) 1989-01-10
AU580218B2 (en) 1989-01-05
ATE103728T1 (de) 1994-04-15
EP0260053A1 (de) 1988-03-16
JPH0833754B2 (ja) 1996-03-29
AU7825487A (en) 1988-03-24
KR960002388B1 (ko) 1996-02-16
KR880004426A (ko) 1988-06-07
DE3789476T2 (de) 1994-09-15
CA1307345C (en) 1992-09-08

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