CA2368453A1 - Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio - Google Patents

Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio Download PDF

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Publication number
CA2368453A1
CA2368453A1 CA002368453A CA2368453A CA2368453A1 CA 2368453 A1 CA2368453 A1 CA 2368453A1 CA 002368453 A CA002368453 A CA 002368453A CA 2368453 A CA2368453 A CA 2368453A CA 2368453 A1 CA2368453 A1 CA 2368453A1
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Canada
Prior art keywords
components
subband
signal
gain factor
magnitudes
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.)
Granted
Application number
CA002368453A
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English (en)
Other versions
CA2368453C (fr
Inventor
Grant Allen Davidson
Charles Quito Robinson
Michael Mead Truman
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Dolby Laboratories Licensing Corp
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Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26968028&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2368453(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US09/349,645 external-priority patent/US6246345B1/en
Application filed by Individual filed Critical Individual
Publication of CA2368453A1 publication Critical patent/CA2368453A1/fr
Application granted granted Critical
Publication of CA2368453C publication Critical patent/CA2368453C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/0208—Subband vocoders

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002368453A 1999-04-16 2000-04-11 Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio Expired - Lifetime CA2368453C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29357799A 1999-04-16 1999-04-16
US09/293,577 1999-04-16
US09/349,645 1999-07-08
US09/349,645 US6246345B1 (en) 1999-04-16 1999-07-08 Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding
PCT/US2000/009604 WO2000063886A1 (fr) 1999-04-16 2000-04-11 Mise en oeuvre d'une quantification a gain adaptatif et de longueurs de symboles non uniformes pour codage audio

Publications (2)

Publication Number Publication Date
CA2368453A1 true CA2368453A1 (fr) 2000-10-26
CA2368453C CA2368453C (fr) 2009-12-08

Family

ID=26968028

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002368453A Expired - Lifetime CA2368453C (fr) 1999-04-16 2000-04-11 Utilisation de quantification a gain adapte et de longueurs de symboles non uniformes pour codage audio

Country Status (17)

Country Link
EP (1) EP1175670B2 (fr)
JP (1) JP4843142B2 (fr)
KR (1) KR100893281B1 (fr)
CN (1) CN1158646C (fr)
AR (1) AR023444A1 (fr)
AT (1) ATE269574T1 (fr)
AU (1) AU771454B2 (fr)
BR (1) BRPI0010672B1 (fr)
CA (1) CA2368453C (fr)
DE (1) DE60011606T3 (fr)
DK (1) DK1175670T4 (fr)
ES (1) ES2218148T5 (fr)
HK (1) HK1045747B (fr)
MX (1) MXPA01010447A (fr)
MY (1) MY122486A (fr)
TW (1) TW536692B (fr)
WO (1) WO2000063886A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
DE102004007191B3 (de) 2004-02-13 2005-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierung
DE102004007184B3 (de) * 2004-02-13 2005-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum Quantisieren eines Informationssignals
DE102004007200B3 (de) 2004-02-13 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierung
RU2420816C2 (ru) * 2006-02-24 2011-06-10 Франс Телеком Способ двоичного кодирования показателей квантования огибающей сигнала, способ декодирования огибающей сигнала и соответствующие модули кодирования и декодирования
DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
KR101482199B1 (ko) * 2006-07-24 2015-01-14 마벨 월드 트레이드 리미티드 오디오 모니터링을 구비한 자기 및 광학 회전형 저장 시스템
WO2008108701A1 (fr) * 2007-03-02 2008-09-12 Telefonaktiebolaget Lm Ericsson (Publ) Post-filtre pour des codecs en couche
US20120029926A1 (en) 2010-07-30 2012-02-02 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for dependent-mode coding of audio signals
US9208792B2 (en) 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
KR20140057683A (ko) * 2011-08-29 2014-05-13 주식회사 아이벡스피티홀딩스 머지 모드에서 영상 부호화 방법
ES2970676T3 (es) * 2012-12-13 2024-05-30 Fraunhofer Ges Forschung Dispositivo de codificación de audio vocal, dispositivo de decodificación de audio vocal, procedimiento decodificación de audio vocal, y procedimiento de decodificación de audio vocal
CN116366411B (zh) * 2023-03-28 2024-03-08 扬州宇安电子科技有限公司 一种多比特信号量化自适应门限生成及量化方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365553A (en) * 1990-11-30 1994-11-15 U.S. Philips Corporation Transmitter, encoding system and method employing use of a bit need determiner for subband coding a digital signal
WO1995032499A1 (fr) * 1994-05-25 1995-11-30 Sony Corporation Procede de codage, procede de decodage, procede de codage-decodage, codeur, decodeur et codeur-decodeur
JP3307138B2 (ja) * 1995-02-27 2002-07-24 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
US5924064A (en) * 1996-10-07 1999-07-13 Picturetel Corporation Variable length coding using a plurality of region bit allocation patterns
US6006179A (en) * 1997-10-28 1999-12-21 America Online, Inc. Audio codec using adaptive sparse vector quantization with subband vector classification

Also Published As

Publication number Publication date
TW536692B (en) 2003-06-11
DE60011606T3 (de) 2008-01-24
ES2218148T5 (es) 2008-02-16
DK1175670T3 (da) 2004-10-11
ATE269574T1 (de) 2004-07-15
CA2368453C (fr) 2009-12-08
MXPA01010447A (es) 2002-07-30
DK1175670T4 (da) 2007-11-19
EP1175670B1 (fr) 2004-06-16
CN1347549A (zh) 2002-05-01
HK1045747B (zh) 2004-12-31
BR0010672A (pt) 2002-02-19
AU4227900A (en) 2000-11-02
AU771454B2 (en) 2004-03-25
HK1045747A1 (en) 2002-12-06
KR100893281B1 (ko) 2009-04-17
MY122486A (en) 2006-04-29
EP1175670B2 (fr) 2007-09-19
BRPI0010672B1 (pt) 2016-06-07
AR023444A1 (es) 2002-09-04
WO2000063886A1 (fr) 2000-10-26
DE60011606D1 (de) 2004-07-22
KR20010112434A (ko) 2001-12-20
ES2218148T3 (es) 2004-11-16
JP2002542522A (ja) 2002-12-10
JP4843142B2 (ja) 2011-12-21
CN1158646C (zh) 2004-07-21
EP1175670A1 (fr) 2002-01-30
DE60011606T2 (de) 2005-06-23

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Effective date: 20200411