NO20082176L - Tidsbestemt og romslig bearbeidelse av flerkanals lydsignaler - Google Patents

Tidsbestemt og romslig bearbeidelse av flerkanals lydsignaler

Info

Publication number
NO20082176L
NO20082176L NO20082176A NO20082176A NO20082176L NO 20082176 L NO20082176 L NO 20082176L NO 20082176 A NO20082176 A NO 20082176A NO 20082176 A NO20082176 A NO 20082176A NO 20082176 L NO20082176 L NO 20082176L
Authority
NO
Norway
Prior art keywords
resolution
channel
waveform
time scale
waveform parameter
Prior art date
Application number
NO20082176A
Other languages
English (en)
Other versions
NO343713B1 (no
Inventor
Juergen Herre
Matthias Neusinger
Sascha Disch
Jeroen Breebart
Gerard Hotho
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of NO20082176L publication Critical patent/NO20082176L/no
Publication of NO343713B1 publication Critical patent/NO343713B1/no

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S3/00Systems employing more than two channels, e.g. quadraphonic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04SSTEREOPHONIC SYSTEMS 
    • H04S3/00Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)

Abstract

En valgt kanal av et flerkanalssignal som representeres av rammer som består av samplingsverdier med en høy tidsoppløsning kan kodes med høyere kvalitet når en bølgeformparameterfremstilling som representerer en bølgeform av en mellomliggende oppløsningsfremstilling av den valgte kanal blir avledet, idet bølgeformparameterfremstillingen omfatter en sekvens av mellomliggende bølgeformparametere med en tidsoppløsning som er lavere enn høytidsoppløsningen av samplingsverdiene og høyere enn en tidsoppløsning som definert av en rammerepetisjonsrate. Bølgeformparameterfremstillingen med den mellomliggende oppløsning kan brukes for å forme en rekonstruert kanal for å gjenvinne en kanal med en signalomsluttning som er nær den valgte, opprinnelige kanal. Tidsskalaen som formingen utføres på er kortere enn tidsskalaen for en rammevis behandling og forbedrer således kvaliteten av den rekonstruerte kanal. På den annen side er formingstidsskalaen større enn tidsskalaen av samplingsverdiene, hvilket vesentlig reduserer mengden av data som trengs for bølgeformparameterfremstillingen.
NO20082176A 2005-10-12 2008-05-09 Tidsbestemt og romlig bearbeiding av flerkanals lydsignaler NO343713B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US72638905P 2005-10-12 2005-10-12
US11/363,985 US7974713B2 (en) 2005-10-12 2006-02-27 Temporal and spatial shaping of multi-channel audio signals
PCT/EP2006/008534 WO2007042108A1 (en) 2005-10-12 2006-08-31 Temporal and spatial shaping of multi-channel audio signals

Publications (2)

Publication Number Publication Date
NO20082176L true NO20082176L (no) 2008-05-09
NO343713B1 NO343713B1 (no) 2019-05-13

Family

ID=37179043

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20082176A NO343713B1 (no) 2005-10-12 2008-05-09 Tidsbestemt og romlig bearbeiding av flerkanals lydsignaler

Country Status (16)

Country Link
US (3) US7974713B2 (no)
EP (1) EP1934973B1 (no)
JP (1) JP5102213B2 (no)
KR (1) KR100947013B1 (no)
CN (1) CN101356571B (no)
AU (1) AU2006301612B2 (no)
BR (1) BRPI0618002B1 (no)
CA (1) CA2625213C (no)
ES (1) ES2770146T3 (no)
IL (1) IL190765A (no)
MY (1) MY144518A (no)
NO (1) NO343713B1 (no)
PL (1) PL1934973T3 (no)
RU (1) RU2388068C2 (no)
TW (1) TWI332192B (no)
WO (1) WO2007042108A1 (no)

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Also Published As

Publication number Publication date
TW200746044A (en) 2007-12-16
RU2008118333A (ru) 2009-11-20
RU2388068C2 (ru) 2010-04-27
NO343713B1 (no) 2019-05-13
TWI332192B (en) 2010-10-21
CN101356571B (zh) 2012-05-30
CN101356571A (zh) 2009-01-28
MY144518A (en) 2011-09-30
JP5102213B2 (ja) 2012-12-19
ES2770146T3 (es) 2020-06-30
AU2006301612B2 (en) 2010-07-22
US20070081597A1 (en) 2007-04-12
PL1934973T3 (pl) 2020-06-01
IL190765A (en) 2013-09-30
BRPI0618002B1 (pt) 2021-03-09
US7974713B2 (en) 2011-07-05
WO2007042108A1 (en) 2007-04-19
US20140126725A1 (en) 2014-05-08
KR20080059193A (ko) 2008-06-26
BRPI0618002A2 (pt) 2011-08-16
CA2625213C (en) 2012-04-10
JP2009511966A (ja) 2009-03-19
KR100947013B1 (ko) 2010-03-10
US8644972B2 (en) 2014-02-04
EP1934973B1 (en) 2019-11-13
IL190765A0 (en) 2008-11-03
EP1934973A1 (en) 2008-06-25
US9361896B2 (en) 2016-06-07
US20110106545A1 (en) 2011-05-05
CA2625213A1 (en) 2007-04-19
AU2006301612A1 (en) 2007-04-19

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