ATE500588T1 - Audiokodierer und -dekodierer - Google Patents

Audiokodierer und -dekodierer

Info

Publication number
ATE500588T1
ATE500588T1 AT08009531T AT08009531T ATE500588T1 AT E500588 T1 ATE500588 T1 AT E500588T1 AT 08009531 T AT08009531 T AT 08009531T AT 08009531 T AT08009531 T AT 08009531T AT E500588 T1 ATE500588 T1 AT E500588T1
Authority
AT
Austria
Prior art keywords
input signal
transform domain
unit
model
coding system
Prior art date
Application number
AT08009531T
Other languages
English (en)
Inventor
Arijit Biswas
Heiko Purnhagen
Kristofer Kjoerling
Barbara Resch
Lars Falck Villemoes
Per Henrik Hedelin
Original Assignee
Dolby Sweden Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39710955&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE500588(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Sweden Ab filed Critical Dolby Sweden Ab
Application granted granted Critical
Publication of ATE500588T1 publication Critical patent/ATE500588T1/de

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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/02—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
    • G10L19/035—Scalar quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Analogue/Digital Conversion (AREA)
AT08009531T 2008-01-04 2008-05-24 Audiokodierer und -dekodierer ATE500588T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0800032 2008-01-04

Publications (1)

Publication Number Publication Date
ATE500588T1 true ATE500588T1 (de) 2011-03-15

Family

ID=39710955

Family Applications (2)

Application Number Title Priority Date Filing Date
AT08009531T ATE500588T1 (de) 2008-01-04 2008-05-24 Audiokodierer und -dekodierer
AT08009530T ATE518224T1 (de) 2008-01-04 2008-05-24 Audiokodierer und -dekodierer

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT08009530T ATE518224T1 (de) 2008-01-04 2008-05-24 Audiokodierer und -dekodierer

Country Status (14)

Country Link
US (4) US8494863B2 (de)
EP (6) EP2077551B1 (de)
JP (3) JP5350393B2 (de)
KR (2) KR101196620B1 (de)
CN (3) CN101925950B (de)
AT (2) ATE500588T1 (de)
AU (1) AU2008346515B2 (de)
BR (1) BRPI0822236B1 (de)
CA (4) CA2960862C (de)
DE (1) DE602008005250D1 (de)
ES (2) ES2677900T3 (de)
MX (1) MX2010007326A (de)
RU (3) RU2562375C2 (de)
WO (2) WO2009086919A1 (de)

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