DE69808146T2 - Verfahren und gerät zur spektralumformung in einem transformationskodierer für hochwertige tonsignale - Google Patents

Verfahren und gerät zur spektralumformung in einem transformationskodierer für hochwertige tonsignale

Info

Publication number
DE69808146T2
DE69808146T2 DE69808146T DE69808146T DE69808146T2 DE 69808146 T2 DE69808146 T2 DE 69808146T2 DE 69808146 T DE69808146 T DE 69808146T DE 69808146 T DE69808146 T DE 69808146T DE 69808146 T2 DE69808146 T2 DE 69808146T2
Authority
DE
Germany
Prior art keywords
sound signals
quality sound
transformation encoder
spectral
spectral forming
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
DE69808146T
Other languages
English (en)
Other versions
DE69808146D1 (de
Inventor
Javed Absar
Sapna George
Mario Alvarez-Tinoco
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.)
STMicroelectronics Asia Pacific Pte Ltd
Original Assignee
STMicroelectronics Asia Pacific Pte Ltd
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 STMicroelectronics Asia Pacific Pte Ltd filed Critical STMicroelectronics Asia Pacific Pte Ltd
Application granted granted Critical
Publication of DE69808146D1 publication Critical patent/DE69808146D1/de
Publication of DE69808146T2 publication Critical patent/DE69808146T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • 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)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69808146T 1998-01-12 1998-01-12 Verfahren und gerät zur spektralumformung in einem transformationskodierer für hochwertige tonsignale Expired - Fee Related DE69808146T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1998/000002 WO1999035758A1 (en) 1998-01-12 1998-01-12 Method and apparatus for spectral exponent reshaping in a transform coder for high quality audio

Publications (2)

Publication Number Publication Date
DE69808146D1 DE69808146D1 (de) 2002-10-24
DE69808146T2 true DE69808146T2 (de) 2003-05-15

Family

ID=20429826

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69808146T Expired - Fee Related DE69808146T2 (de) 1998-01-12 1998-01-12 Verfahren und gerät zur spektralumformung in einem transformationskodierer für hochwertige tonsignale

Country Status (4)

Country Link
US (1) US6839674B1 (de)
EP (1) EP1060573B1 (de)
DE (1) DE69808146T2 (de)
WO (1) WO1999035758A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69813912T2 (de) 1998-10-26 2004-05-06 Stmicroelectronics Asia Pacific Pte Ltd. Digitaler audiokodierer mit verschiedenen genauigkeiten
US6775587B1 (en) 1999-10-30 2004-08-10 Stmicroelectronics Asia Pacific Pte Ltd. Method of encoding frequency coefficients in an AC-3 encoder
US7460684B2 (en) 2003-06-13 2008-12-02 Nielsen Media Research, Inc. Method and apparatus for embedding watermarks
AU2005270105B2 (en) 2004-07-02 2011-03-31 Nielsen Media Research, Inc. Methods and apparatus for mixing compressed digital bit streams
WO2008045950A2 (en) 2006-10-11 2008-04-17 Nielsen Media Research, Inc. Methods and apparatus for embedding codes in compressed audio data streams
CN111862995A (zh) * 2020-06-22 2020-10-30 北京达佳互联信息技术有限公司 一种码率确定模型训练方法、码率确定方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2597987B2 (ja) * 1986-02-08 1997-04-09 ソニー株式会社 ブロツク化伝送信号のデコード装置
JP2775857B2 (ja) * 1989-06-20 1998-07-16 ソニー株式会社 デジタル信号の帯域圧縮回路
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
JPH07199996A (ja) * 1993-11-29 1995-08-04 Casio Comput Co Ltd 波形データ符号化装置、波形データ符号化方法、波形データ復号装置、及び波形データ符号化／復号装置
US5825807A (en) * 1995-11-06 1998-10-20 Kumar; Derek D. System and method for multiplexing a spread spectrum communication system

Also Published As

Publication number Publication date
EP1060573A1 (de) 2000-12-20
US6839674B1 (en) 2005-01-04
WO1999035758A1 (en) 1999-07-15
EP1060573B1 (de) 2002-09-18
DE69808146D1 (de) 2002-10-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee