ATE354160T1 - Audiosignalcodierung oder -decodierung - Google Patents

Audiosignalcodierung oder -decodierung

Info

Publication number
ATE354160T1
ATE354160T1 AT04770333T AT04770333T ATE354160T1 AT E354160 T1 ATE354160 T1 AT E354160T1 AT 04770333 T AT04770333 T AT 04770333T AT 04770333 T AT04770333 T AT 04770333T AT E354160 T1 ATE354160 T1 AT E354160T1
Authority
AT
Austria
Prior art keywords
subband signals
downsampled
subband
audio signal
audio
Prior art date
Application number
AT04770333T
Other languages
English (en)
Inventor
Lars F Villemoes
Per Ekstrand
Heiko Purnhagen
Erik G P Schuijers
Bont Fransiscus M J De
Original Assignee
Koninkl Philips Electronics Nv
Coding Tech 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=34530779&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE354160(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninkl Philips Electronics Nv, Coding Tech Ab filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE354160T1 publication Critical patent/ATE354160T1/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
    • G10L19/008—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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Insulated Conductors (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereophonic System (AREA)
AT04770333T 2003-10-30 2004-10-28 Audiosignalcodierung oder -decodierung ATE354160T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03104034 2003-10-30

Publications (1)

Publication Number Publication Date
ATE354160T1 true ATE354160T1 (de) 2007-03-15

Family

ID=34530779

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04770333T ATE354160T1 (de) 2003-10-30 2004-10-28 Audiosignalcodierung oder -decodierung

Country Status (12)

Country Link
US (3) US7519538B2 (de)
EP (1) EP1683133B1 (de)
JP (4) JP4966013B2 (de)
KR (2) KR101106026B1 (de)
CN (2) CN1875402B (de)
AT (1) ATE354160T1 (de)
BR (2) BR122018007834B1 (de)
DE (1) DE602004004818T2 (de)
ES (1) ES2282899T3 (de)
PL (1) PL1683133T3 (de)
RU (1) RU2374703C2 (de)
WO (1) WO2005043511A1 (de)

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US7519538B2 (en) 2009-04-14
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