BR112021026522A2 - Métodos, aparelhos e sistemas para representação, codificação e decodificação de dados de diretividade discreta - Google Patents

Métodos, aparelhos e sistemas para representação, codificação e decodificação de dados de diretividade discreta

Info

Publication number
BR112021026522A2
BR112021026522A2 BR112021026522A BR112021026522A BR112021026522A2 BR 112021026522 A2 BR112021026522 A2 BR 112021026522A2 BR 112021026522 A BR112021026522 A BR 112021026522A BR 112021026522 A BR112021026522 A BR 112021026522A BR 112021026522 A2 BR112021026522 A2 BR 112021026522A2
Authority
BR
Brazil
Prior art keywords
directivity
encoding
representing
methods
systems
Prior art date
Application number
BR112021026522A
Other languages
English (en)
Inventor
Christof Fersch
Daniel Fischer
Leon Terentiv
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.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of BR112021026522A2 publication Critical patent/BR112021026522A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • 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 SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

métodos, aparelhos e sist emas para representação, codificação e decodificação de dados de diretividade discreta” referência cruzada aos pedidos relacionados. a presente divulgação se refere a um método de processamento de conteúdo de áudio incluindo informações de diretividade para pelo menos uma fonte de som, as informações de diretividade compreendendo um primeiro conjunto de primeiros vetores de unidade de diretividade representando direções de diretividade e primeiros ganhos de diretividade associados. a divulgação se refere ainda a métodos correspondentes de codificação e decodificação de conteúdo de áudio, incluindo informações de diretividade para pelo menos uma fonte de som.
BR112021026522A 2019-07-02 2020-06-30 Métodos, aparelhos e sistemas para representação, codificação e decodificação de dados de diretividade discreta BR112021026522A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962869622P 2019-07-02 2019-07-02
EP19183862 2019-07-02
PCT/EP2020/068380 WO2021001358A1 (en) 2019-07-02 2020-06-30 Methods, apparatus and systems for representation, encoding, and decoding of discrete directivity data

Publications (1)

Publication Number Publication Date
BR112021026522A2 true BR112021026522A2 (pt) 2022-02-15

Family

ID=71138767

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021026522A BR112021026522A2 (pt) 2019-07-02 2020-06-30 Métodos, aparelhos e sistemas para representação, codificação e decodificação de dados de diretividade discreta

Country Status (13)

Country Link
US (2) US11902769B2 (pt)
EP (1) EP3994689B1 (pt)
JP (1) JP2022539217A (pt)
KR (1) KR20220028021A (pt)
CN (3) CN116978387A (pt)
AU (1) AU2020299973A1 (pt)
BR (1) BR112021026522A2 (pt)
CA (1) CA3145444A1 (pt)
CL (1) CL2021003533A1 (pt)
IL (1) IL289261B2 (pt)
MX (1) MX2021016056A (pt)
TW (1) TW202117705A (pt)
WO (1) WO2021001358A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022248632A1 (en) * 2021-05-27 2022-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio directivity coding

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KR101845226B1 (ko) 2011-07-01 2018-05-18 돌비 레버러토리즈 라이쎈싱 코오포레이션 적응형 오디오 신호 생성， 코딩 및 렌더링을 위한 시스템 및 방법
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Also Published As

Publication number Publication date
WO2021001358A1 (en) 2021-01-07
CN114127843A (zh) 2022-03-01
CN116959461A (zh) 2023-10-27
EP3994689A1 (en) 2022-05-11
JP2022539217A (ja) 2022-09-07
US11902769B2 (en) 2024-02-13
US20220377484A1 (en) 2022-11-24
AU2020299973A1 (en) 2022-01-27
MX2021016056A (es) 2022-03-11
CL2021003533A1 (es) 2022-08-19
EP3994689B1 (en) 2024-01-03
IL289261B2 (en) 2024-07-01
IL289261A (en) 2022-02-01
KR20220028021A (ko) 2022-03-08
CN114127843B (zh) 2023-08-11
US20240223984A1 (en) 2024-07-04
IL289261B1 (en) 2024-03-01
CN116978387A (zh) 2023-10-31
TW202117705A (zh) 2021-05-01
CA3145444A1 (en) 2021-01-07

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