DE69928842D1 - Kanal koppelung für einen ac-3 kodierer - Google Patents

Kanal koppelung für einen ac-3 kodierer

Info

Publication number
DE69928842D1
DE69928842D1 DE69928842T DE69928842T DE69928842D1 DE 69928842 D1 DE69928842 D1 DE 69928842D1 DE 69928842 T DE69928842 T DE 69928842T DE 69928842 T DE69928842 T DE 69928842T DE 69928842 D1 DE69928842 D1 DE 69928842D1
Authority
DE
Germany
Prior art keywords
codier
channel coupling
coupling
channel
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
DE69928842T
Other languages
English (en)
Other versions
DE69928842T2 (de
Inventor
Javed Absar
Sapna George
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 DE69928842D1 publication Critical patent/DE69928842D1/de
Publication of DE69928842T2 publication Critical patent/DE69928842T2/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
    • G10L19/04—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
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

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)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69928842T 1999-10-30 1999-10-30 Kanal koppelung für einen ac-3 kodierer Expired - Lifetime DE69928842T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1999/000110 WO2001033726A1 (en) 1999-10-30 1999-10-30 Channel coupling for an ac-3 encoder

Publications (2)

Publication Number Publication Date
DE69928842D1 true DE69928842D1 (de) 2006-01-12
DE69928842T2 DE69928842T2 (de) 2006-08-17

Family

ID=20430244

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69928842T Expired - Lifetime DE69928842T2 (de) 1999-10-30 1999-10-30 Kanal koppelung für einen ac-3 kodierer

Country Status (4)

Country Link
US (1) US7096240B1 (de)
EP (1) EP1228576B1 (de)
DE (1) DE69928842T2 (de)
WO (1) WO2001033726A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
JP4676140B2 (ja) * 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US7539612B2 (en) 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
US8972359B2 (en) * 2005-12-19 2015-03-03 Rockstar Consortium Us Lp Compact floating point delta encoding for complex data
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US20120084335A1 (en) * 2010-10-03 2012-04-05 Hung-Ching Chen Method and apparatus of processing floating point number

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805022A (en) 1988-02-19 1989-02-14 The Grass Valley Group, Inc. Digital wipe generator
US5844940A (en) * 1995-06-30 1998-12-01 Motorola, Inc. Method and apparatus for determining transmit power levels for data transmission and reception
DE69722973T2 (de) 1997-12-19 2004-05-19 Stmicroelectronics Asia Pacific Pte Ltd. Verfahren und gerät zur phasenschätzung in einem transformationskodierer für hochqualitätsaudio
EP1050113B1 (de) * 1997-12-27 2002-03-13 STMicroelectronics Asia Pacific Pte Ltd. Verfahren und gerät zur schätzung von koppelparametern in einem transformationskodierer für hochwertige tonsignale
WO2000025249A1 (en) 1998-10-26 2000-05-04 Stmicroelectronics Asia Pacific Pte Ltd. Multi-precision technique for digital audio encoder

Also Published As

Publication number Publication date
WO2001033726A1 (en) 2001-05-10
EP1228576B1 (de) 2005-12-07
EP1228576A1 (de) 2002-08-07
DE69928842T2 (de) 2006-08-17
US7096240B1 (en) 2006-08-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: HEYER, V., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 806