NO20082176L - Tidsbestemt og romslig bearbeidelse av flerkanals lydsignaler - Google Patents
Tidsbestemt og romslig bearbeidelse av flerkanals lydsignalerInfo
- 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
Links
- 230000005236 sound signal Effects 0.000 title 1
- 238000005070 sampling Methods 0.000 abstract 3
- 238000002360 preparation method Methods 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 1
Classifications
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- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion 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
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems 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.
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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2006
- 2006-02-27 US US11/363,985 patent/US7974713B2/en active Active
- 2006-08-31 JP JP2008534883A patent/JP5102213B2/ja active Active
- 2006-08-31 KR KR1020087008679A patent/KR100947013B1/ko active IP Right Grant
- 2006-08-31 WO PCT/EP2006/008534 patent/WO2007042108A1/en active Application Filing
- 2006-08-31 EP EP06777134.5A patent/EP1934973B1/en active Active
- 2006-08-31 RU RU2008118333/09A patent/RU2388068C2/ru active
- 2006-08-31 BR BRPI0618002-7A patent/BRPI0618002B1/pt active IP Right Grant
- 2006-08-31 MY MYPI20081008A patent/MY144518A/en unknown
- 2006-08-31 CN CN2006800379011A patent/CN101356571B/zh active Active
- 2006-08-31 CA CA2625213A patent/CA2625213C/en active Active
- 2006-08-31 PL PL06777134T patent/PL1934973T3/pl unknown
- 2006-08-31 ES ES06777134T patent/ES2770146T3/es active Active
- 2006-08-31 AU AU2006301612A patent/AU2006301612B2/en active Active
- 2006-09-13 TW TW095133901A patent/TWI332192B/zh active
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2008
- 2008-04-09 IL IL190765A patent/IL190765A/en active IP Right Grant
- 2008-05-09 NO NO20082176A patent/NO343713B1/no unknown
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2011
- 2011-01-14 US US13/007,441 patent/US8644972B2/en active Active
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2014
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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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