DE69401959D1 - Vom rechenaufwand her effiziente adaptive bitzuteilung für kodierverfahren und einrichtung mit toleranz für dekoderspektralverzerrungen - Google Patents

Vom rechenaufwand her effiziente adaptive bitzuteilung für kodierverfahren und einrichtung mit toleranz für dekoderspektralverzerrungen

Info

Publication number
DE69401959D1
DE69401959D1 DE69401959T DE69401959T DE69401959D1 DE 69401959 D1 DE69401959 D1 DE 69401959D1 DE 69401959 T DE69401959 T DE 69401959T DE 69401959 T DE69401959 T DE 69401959T DE 69401959 D1 DE69401959 D1 DE 69401959D1
Authority
DE
Germany
Prior art keywords
allocation
function
subband signals
spectral distortions
values
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
DE69401959T
Other languages
English (en)
Other versions
DE69401959T2 (de
Inventor
Louis Fielder
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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
Priority claimed from US08/145,975 external-priority patent/US5632003A/en
Priority claimed from US08/190,655 external-priority patent/US5623577A/en
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of DE69401959D1 publication Critical patent/DE69401959D1/de
Application granted granted Critical
Publication of DE69401959T2 publication Critical patent/DE69401959T2/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)
  • Analogue/Digital Conversion (AREA)
DE69401959T 1993-07-16 1994-07-15 Vom rechenaufwand her effiziente adaptive bitzuteilung für kodierverfahren und einrichtung mit toleranz für dekoderspektralverzerrungen Expired - Lifetime DE69401959T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9226993A 1993-07-16 1993-07-16
US08/145,975 US5632003A (en) 1993-07-16 1993-11-01 Computationally efficient adaptive bit allocation for coding method and apparatus
US08/190,655 US5623577A (en) 1993-07-16 1994-01-28 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
PCT/US1994/007976 WO1995002929A1 (en) 1993-07-16 1994-07-15 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions

Publications (2)

Publication Number Publication Date
DE69401959D1 true DE69401959D1 (de) 1997-04-10
DE69401959T2 DE69401959T2 (de) 1997-07-31

Family

ID=27377179

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69401959T Expired - Lifetime DE69401959T2 (de) 1993-07-16 1994-07-15 Vom rechenaufwand her effiziente adaptive bitzuteilung für kodierverfahren und einrichtung mit toleranz für dekoderspektralverzerrungen

Country Status (10)

Country Link
EP (1) EP0709006B1 (de)
JP (1) JP3297050B2 (de)
AT (1) ATE149766T1 (de)
AU (1) AU677688B2 (de)
CA (1) CA2165450C (de)
DE (1) DE69401959T2 (de)
DK (1) DK0709006T3 (de)
ES (1) ES2098974T3 (de)
SG (1) SG66294A1 (de)
WO (1) WO1995002929A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722225A3 (de) * 1994-11-17 2000-06-07 Deutsche Thomson-Brandt Gmbh Audiosignalkodierung mittels Kurzzeitspektren und einem psychoakustischen Modell
US6363338B1 (en) * 1999-04-12 2002-03-26 Dolby Laboratories Licensing Corporation Quantization in perceptual audio coders with compensation for synthesis filter noise spreading
KR100949232B1 (ko) * 2002-01-30 2010-03-24 파나소닉 주식회사 인코딩 장치, 디코딩 장치 및 그 방법
CN1666571A (zh) * 2002-07-08 2005-09-07 皇家飞利浦电子股份有限公司 音频处理
KR100738109B1 (ko) * 2006-04-03 2007-07-12 삼성전자주식회사 입력 신호의 양자화 및 역양자화 방법과 장치, 입력신호의부호화 및 복호화 방법과 장치
CN101425293B (zh) * 2008-09-24 2011-06-08 天津大学 一种高效感知音频比特分配方法
US9378748B2 (en) 2012-11-07 2016-06-28 Dolby Laboratories Licensing Corp. Reduced complexity converter SNR calculation
US10332527B2 (en) 2013-09-05 2019-06-25 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding audio signal
JP6398607B2 (ja) 2014-10-24 2018-10-03 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法、オーディオ符号化プログラム
CN113933590A (zh) * 2020-07-14 2022-01-14 森兰信息科技（上海）有限公司 波的频谱的计算方法、系统、介质及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2906646B2 (ja) 1990-11-09 1999-06-21 松下電器産業株式会社 音声帯域分割符号化装置
JP4177300B2 (ja) 2004-07-27 2008-11-05 三菱電機株式会社 電子ビーム表面処理方法、および電子ビーム表面処理装置

Also Published As

Publication number Publication date
CA2165450A1 (en) 1995-01-26
SG66294A1 (en) 1999-07-20
DK0709006T3 (da) 1997-09-01
EP0709006B1 (de) 1997-03-05
JPH09500502A (ja) 1997-01-14
ATE149766T1 (de) 1997-03-15
EP0709006A1 (de) 1996-05-01
DE69401959T2 (de) 1997-07-31
ES2098974T3 (es) 1997-05-01
WO1995002929A1 (en) 1995-01-26
AU677688B2 (en) 1997-05-01
JP3297050B2 (ja) 2002-07-02
CA2165450C (en) 2005-10-11
AU7335794A (en) 1995-02-13

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