DE69813912D1 - Digitaler audiokodierer mit verschiedenen genauigkeiten - Google Patents

Digitaler audiokodierer mit verschiedenen genauigkeiten

Info

Publication number
DE69813912D1
DE69813912D1 DE69813912T DE69813912T DE69813912D1 DE 69813912 D1 DE69813912 D1 DE 69813912D1 DE 69813912 T DE69813912 T DE 69813912T DE 69813912 T DE69813912 T DE 69813912T DE 69813912 D1 DE69813912 D1 DE 69813912D1
Authority
DE
Germany
Prior art keywords
digital audio
audio encoder
various accuracies
accuracies
various
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
DE69813912T
Other languages
English (en)
Other versions
DE69813912T2 (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
Publication of DE69813912D1 publication Critical patent/DE69813912D1/de
Application granted granted Critical
Publication of DE69813912T2 publication Critical patent/DE69813912T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69813912T 1998-10-26 1998-10-26 Digitaler audiokodierer mit verschiedenen genauigkeiten Expired - Lifetime DE69813912T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1998/000084 WO2000025249A1 (en) 1998-10-26 1998-10-26 Multi-precision technique for digital audio encoder

Publications (2)

Publication Number Publication Date
DE69813912D1 true DE69813912D1 (de) 2003-05-28
DE69813912T2 DE69813912T2 (de) 2004-05-06

Family

ID=20429883

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69813912T Expired - Lifetime DE69813912T2 (de) 1998-10-26 1998-10-26 Digitaler audiokodierer mit verschiedenen genauigkeiten

Country Status (4)

Country Link
US (2) US7117053B1 (de)
EP (1) EP1125235B1 (de)
DE (1) DE69813912T2 (de)
WO (1) WO2000025249A1 (de)

Families Citing this family (11)

* 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
EP1228576B1 (de) 1999-10-30 2005-12-07 STMicroelectronics Asia Pacific Pte Ltd. Kanal koppelung für einen ac-3 kodierer
US6882685B2 (en) * 2001-09-18 2005-04-19 Microsoft Corporation Block transform and quantization for image and video coding
ATE452401T1 (de) * 2003-10-13 2010-01-15 Koninkl Philips Electronics Nv Audiocodierung
US7689052B2 (en) * 2005-10-07 2010-03-30 Microsoft Corporation Multimedia signal processing using fixed-point approximations of linear transforms
US8942289B2 (en) * 2007-02-21 2015-01-27 Microsoft Corporation Computational complexity and precision control in transform-based digital media codec
US8630848B2 (en) 2008-05-30 2014-01-14 Digital Rise Technology Co., Ltd. Audio signal transient detection
EP2273495A1 (de) * 2009-07-07 2011-01-12 TELEFONAKTIEBOLAGET LM ERICSSON (publ) System zur Verarbeitung digitaler Audiosignale
US8489391B2 (en) * 2010-08-05 2013-07-16 Stmicroelectronics Asia Pacific Pte., Ltd. Scalable hybrid auto coder for transient detection in advanced audio coding with spectral band replication
WO2013075753A1 (en) * 2011-11-25 2013-05-30 Huawei Technologies Co., Ltd. An apparatus and a method for encoding an input signal
CN103236846B (zh) * 2013-05-02 2016-08-10 浙江中控技术股份有限公司 一种工业实时数据压缩方法及装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5230038A (en) * 1989-01-27 1993-07-20 Fielder Louis D Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5579404A (en) * 1993-02-16 1996-11-26 Dolby Laboratories Licensing Corporation Digital audio limiter
JP3188013B2 (ja) * 1993-02-19 2001-07-16 松下電器産業株式会社 変換符号化装置のビット配分方法
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US6331856B1 (en) * 1995-11-22 2001-12-18 Nintendo Co., Ltd. Video game system with coprocessor providing high speed efficient 3D graphics and digital audio signal processing
US5787025A (en) * 1996-02-28 1998-07-28 Atmel Corporation Method and system for performing arithmetic operations with single or double precision
US6854003B2 (en) * 1996-12-19 2005-02-08 Hyundai Electronics America Video frame rendering engine
US6144937A (en) * 1997-07-23 2000-11-07 Texas Instruments Incorporated Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information
WO1999033194A1 (en) 1997-12-19 1999-07-01 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd. Method and apparatus for phase estimation in a transform coder for high quality audio
WO1999034527A1 (en) 1997-12-27 1999-07-08 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd. Method and apparatus for estimation of coupling parameters in a transform coder for high quality audio
DE69808146T2 (de) 1998-01-12 2003-05-15 St Microelectronics Asia Verfahren und gerät zur spektralumformung in einem transformationskodierer für hochwertige tonsignale
US6208671B1 (en) * 1998-01-20 2001-03-27 Cirrus Logic, Inc. Asynchronous sample rate converter
EP1055289B1 (de) 1998-02-12 2008-11-19 STMicroelectronics Asia Pacific Pte Ltd. Ein auf einem neuralen netzwerk basierendes verfahren zum exponentkodieren in einem transformationskodierer für hochwertige tonsignale
WO1999043110A1 (en) 1998-02-21 1999-08-26 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd A fast frequency transformation techique for transform audio coders
AU3372199A (en) * 1998-03-30 1999-10-18 Voxware, Inc. Low-complexity, low-delay, scalable and embedded speech and audio coding with adaptive frame loss concealment
DE69813912T2 (de) * 1998-10-26 2004-05-06 Stmicroelectronics Asia Pacific Pte Ltd. Digitaler audiokodierer mit verschiedenen genauigkeiten

Also Published As

Publication number Publication date
US20070005349A1 (en) 2007-01-04
US7680671B2 (en) 2010-03-16
WO2000025249A1 (en) 2000-05-04
EP1125235A1 (de) 2001-08-22
EP1125235B1 (de) 2003-04-23
US7117053B1 (en) 2006-10-03
DE69813912T2 (de) 2004-05-06

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Legal Events

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8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition