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SG10201807851YA - Methods and devices for joint multichannel coding

SG10201807851YA - Methods and devices for joint multichannel coding - Google PatentsMethods and devices for joint multichannel coding Info

Publication number: SG10201807851YA
Authority: SG; Singapore
Prior art keywords: stereo decoding; devices; decoding; stereo; component
Prior art date: 2013-09-12

Application number

SG10201807851YA

Inventor

Kristofer Kjoerling

Harald Mundt

Heiko Purnhagen

Original Assignee

Dolby Int 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.)

2013-09-12

Filing date

2014-09-08

Publication date

2018-10-30

2014-09-08 Application filed by Dolby Int Ab filed Critical Dolby Int Ab

2018-10-30 Publication of SG10201807851YA publication Critical patent/SG10201807851YA/en

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
- G10L19/04—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
- G10L19/18—Vocoders using multiple modes
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMSÂ
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMSÂ
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Audiology, Speech & Language Pathology (AREA)
Computational Linguistics (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Human Computer Interaction (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Mathematical Physics (AREA)
Stereophonic System (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Quality & Reliability (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

METHODSAND DEVICES FOR JOINT MULTICHANNEL CODING Encoding and decoding devices for encoding the channels of an audio system having at least four channels are disclosed. The decoding device has a first stereo decoding component which subjects a first pair of input channels to a first stereo decoding, and a second stereo decoding component which subjects a second pair of input channels to a second stereo decoding. The results of the first and second stereo decoding components are crosswise coupled to a third and a fourth stereo decoding component which each performs stereo decoding on one channel resulting from the first stereo decoding component, and one channel resulting from the second stereo decoding component. Fig. a 40

SG10201807851YA 2013-09-12 2014-09-08 Methods and devices for joint multichannel coding SG10201807851YA (en) Applications Claiming Priority (1) Application Number Priority Date Filing Date Title US201361877189P 2013-09-12 2013-09-12 Publications (1) Family ID=51492966 Family Applications (2) Application Number Title Priority Date Filing Date SG11201600827VA SG11201600827VA (en) 2013-09-12 2014-09-08 Methods and devices for joint multichannel coding SG10201807851YA SG10201807851YA (en) 2013-09-12 2014-09-08 Methods and devices for joint multichannel coding Family Applications Before (1) Application Number Title Priority Date Filing Date SG11201600827VA SG11201600827VA (en) 2013-09-12 2014-09-08 Methods and devices for joint multichannel coding Country Status (23) Families Citing this family (13) * Cited by examiner, â Cited by third party Publication number Priority date Publication date Assignee Title EP3293734B1 (en) 2013-09-12 2019-05-15 Dolby International AB Decoding of multichannel audio content EP3067885A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur FÃ¶rderung der angewandten Forschung e.V. 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