DE69015105D1 - Kompressionseinrichtung für transformiertes, digitales Audiosignal mit adaptiver Quantisierung auf Grund eines psycho-akustischen Kriteriums. - Google Patents

Kompressionseinrichtung für transformiertes, digitales Audiosignal mit adaptiver Quantisierung auf Grund eines psycho-akustischen Kriteriums.

Info

Publication number
DE69015105D1
DE69015105D1 DE69015105T DE69015105T DE69015105D1 DE 69015105 D1 DE69015105 D1 DE 69015105D1 DE 69015105 T DE69015105 T DE 69015105T DE 69015105 T DE69015105 T DE 69015105T DE 69015105 D1 DE69015105 D1 DE 69015105D1
Authority
DE
Germany
Prior art keywords
psycho
transformed
audio signal
digital audio
compression device
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
DE69015105T
Other languages
English (en)
Other versions
DE69015105T2 (de
Inventor
Yannick Mahieux
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Publication of DE69015105D1 publication Critical patent/DE69015105D1/de
Application granted granted Critical
Publication of DE69015105T2 publication Critical patent/DE69015105T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69015105T 1989-10-13 1990-10-12 Kompressionseinrichtung für transformiertes, digitales Audiosignal mit adaptiver Quantisierung auf Grund eines psycho-akustischen Kriteriums. Expired - Lifetime DE69015105T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8913649A FR2653280B1 (fr) 1989-10-13 1989-10-13 Dispositif d'allocation de bits pour signal audio-numerique transforme, a quantification adaptative sur critere psycho-auditif.

Publications (2)

Publication Number Publication Date
DE69015105D1 true DE69015105D1 (de) 1995-01-26
DE69015105T2 DE69015105T2 (de) 1995-07-20

Family

ID=9386536

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69015105T Expired - Lifetime DE69015105T2 (de) 1989-10-13 1990-10-12 Kompressionseinrichtung für transformiertes, digitales Audiosignal mit adaptiver Quantisierung auf Grund eines psycho-akustischen Kriteriums.

Country Status (4)

Country Link
EP (1) EP0423050B1 (de)
JP (1) JP3168578B2 (de)
DE (1) DE69015105T2 (de)
FR (1) FR2653280B1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JP3134455B2 (ja) * 1992-01-29 2001-02-13 ソニー株式会社 高能率符号化装置及び方法
DE69322529T2 (de) * 1992-02-05 1999-04-29 Sony Corp Plattenabspielgerät und Plattenaufzeichnungsgerät
FR2687871B1 (fr) * 1992-02-25 1995-07-07 France Telecom Procede et dispositif de filtrage pour la reduction des preechos d'un signal audio-numerique.
JP3153933B2 (ja) * 1992-06-16 2001-04-09 ソニー株式会社 データ符号化装置及び方法並びにデータ復号化装置及び方法
JP3127600B2 (ja) * 1992-09-11 2001-01-29 ソニー株式会社 ディジタル信号復号化装置及び方法
JP3343962B2 (ja) * 1992-11-11 2002-11-11 ソニー株式会社 高能率符号化方法及び装置
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3186307B2 (ja) * 1993-03-09 2001-07-11 ソニー株式会社 圧縮データ記録装置及び方法
JP3123290B2 (ja) * 1993-03-09 2001-01-09 ソニー株式会社 圧縮データ記録装置及び方法、圧縮データ再生方法、記録媒体
US5581654A (en) * 1993-05-25 1996-12-03 Sony Corporation Method and apparatus for information encoding and decoding
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
JP3250376B2 (ja) * 1994-06-13 2002-01-28 ソニー株式会社 情報符号化方法及び装置並びに情報復号化方法及び装置
JP3277699B2 (ja) * 1994-06-13 2002-04-22 ソニー株式会社 信号符号化方法及び装置並びに信号復号化方法及び装置
JP3277705B2 (ja) 1994-07-27 2002-04-22 ソニー株式会社 情報符号化装置及び方法、並びに情報復号化装置及び方法
JP3341474B2 (ja) * 1994-07-28 2002-11-05 ソニー株式会社 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
JP3318825B2 (ja) * 1996-08-20 2002-08-26 ソニー株式会社 デジタル信号符号化処理方法、デジタル信号符号化処理装置、デジタル信号記録方法、デジタル信号記録装置、記録媒体、デジタル信号伝送方法及びデジタル信号伝送装置
GB2321577B (en) * 1997-01-27 2001-08-01 British Broadcasting Corp Audio compression

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3276651D1 (en) * 1982-11-26 1987-07-30 Ibm Speech signal coding method and apparatus
EP0338040A1 (de) * 1987-09-30 1989-10-25 Deutsche Thomson-Brandt GmbH Verfahren zur übertragung eines audiosignals

Also Published As

Publication number Publication date
EP0423050A1 (de) 1991-04-17
FR2653280A1 (fr) 1991-04-19
DE69015105T2 (de) 1995-07-20
JPH03167927A (ja) 1991-07-19
JP3168578B2 (ja) 2001-05-21
EP0423050B1 (de) 1994-12-14
FR2653280B1 (fr) 1992-01-10

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