DE3878017D1 - System zur teilbandkodierung eines digitalen audiosignals. - Google Patents

System zur teilbandkodierung eines digitalen audiosignals.

Info

Publication number
DE3878017D1
DE3878017D1 DE8888200748T DE3878017T DE3878017D1 DE 3878017 D1 DE3878017 D1 DE 3878017D1 DE 8888200748 T DE8888200748 T DE 8888200748T DE 3878017 T DE3878017 T DE 3878017T DE 3878017 D1 DE3878017 D1 DE 3878017D1
Authority
DE
Germany
Prior art keywords
subband
coder
audio signal
signal
block
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
DE8888200748T
Other languages
English (en)
Other versions
DE3878017T2 (de
Inventor
Raymond Nicolaas Joha Veldhuis
Der Waal Robbert Gerbrand Van
Marcel Breeuwer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE3878017D1 publication Critical patent/DE3878017D1/de
Application granted granted Critical
Publication of DE3878017T2 publication Critical patent/DE3878017T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—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 spectral information of each sub-band
DE8888200748T 1987-04-27 1988-04-20 System zur teilbandkodierung eines digitalen audiosignals. Expired - Fee Related DE3878017T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8700985A NL8700985A (nl) 1987-04-27 1987-04-27 Systeem voor sub-band codering van een digitaal audiosignaal.

Publications (2)

Publication Number Publication Date
DE3878017D1 true DE3878017D1 (de) 1993-03-18
DE3878017T2 DE3878017T2 (de) 1993-07-22

Family

ID=19849916

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888200748T Expired - Fee Related DE3878017T2 (de) 1987-04-27 1988-04-20 System zur teilbandkodierung eines digitalen audiosignals.

Country Status (9)

Country Link
US (2) US4896362A (de)
EP (1) EP0289080B1 (de)
JP (1) JP2732854B2 (de)
KR (1) KR970008640B1 (de)
AT (1) ATE85481T1 (de)
DE (1) DE3878017T2 (de)
ES (1) ES2038739T3 (de)
HK (1) HK88194A (de)
NL (1) NL8700985A (de)

Families Citing this family (150)

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NL8700985A (nl) 1988-11-16
JP2732854B2 (ja) 1998-03-30
EP0289080A1 (de) 1988-11-02
US5105463A (en) 1992-04-14
KR970008640B1 (ko) 1997-05-27
US4896362A (en) 1990-01-23
ATE85481T1 (de) 1993-02-15
EP0289080B1 (de) 1993-02-03
JPS63285032A (ja) 1988-11-22
KR880013155A (ko) 1988-11-30
HK88194A (en) 1994-09-02
ES2038739T3 (es) 1993-08-01
DE3878017T2 (de) 1993-07-22

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