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MX2019005214A - Mezclador y metodo para mezclar al menos dos canales y codificador multicanal y decodificador multicanal. - Google Patents

Mezclador y metodo para mezclar al menos dos canales y codificador multicanal y decodificador multicanal.

Info

Publication number
MX2019005214A
MX2019005214A MX2019005214A MX2019005214A MX2019005214A MX 2019005214 A MX2019005214 A MX 2019005214A MX 2019005214 A MX2019005214 A MX 2019005214A MX 2019005214 A MX2019005214 A MX 2019005214A MX 2019005214 A MX2019005214 A MX 2019005214A
Authority
MX
Mexico
Prior art keywords
multichannel
signal
channels
downmixer
downmixing
Prior art date
Application number
MX2019005214A
Other languages
English (en)
Other versions
MX387555B (es
Inventor
Fuchs Guillaume
Multrus Markus
Edler Bernd
Borss Christian
Ghido Florin
Bayer Stefan
Büthe Jan
Disch Sascha
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2019005214A publication Critical patent/MX2019005214A/es
Publication of MX387555B publication Critical patent/MX387555B/es

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
    • 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
    • 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
    • H04S2400/03—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)
  • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Amplifiers (AREA)

Abstract

Un mezclador para mezclar al menos dos canales de una señal multicanal (12) que tiene los dos o más canales, comprende: un procesador (10) para calcular una señal de mezcla parcial (14) a partir de los al menos dos canales; un calculador de señal complementaria (20) para calcular una señal complementaria de la señal multicanal (12), la señal complementaria (22) que es diferente de la señal de mezcla parcial (14); y un sumador (30) para añadir la señal de mezcla parcial (14) y la señal complementaria (22) para obtener una señal de mezcla (40) de la señal multicanal.
MX2019005214A 2016-11-08 2017-10-30 Mezclador y metodo para mezclar al menos dos canales y codificador multicanal y decodificador multicanal MX387555B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16197813 2016-11-08
PCT/EP2017/077820 WO2018086946A1 (en) 2016-11-08 2017-10-30 Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder

Publications (2)

Publication Number Publication Date
MX2019005214A true MX2019005214A (es) 2019-06-24
MX387555B MX387555B (es) 2025-03-18

Family

ID=60302095

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2019005214A MX387555B (es) 2016-11-08 2017-10-30 Mezclador y metodo para mezclar al menos dos canales y codificador multicanal y decodificador multicanal

Country Status (17)

Country Link
US (3) US10665246B2 (es)
EP (2) EP3539127B1 (es)
JP (3) JP6817433B2 (es)
KR (1) KR102291792B1 (es)
CN (2) CN110419079B (es)
AR (1) AR110147A1 (es)
AU (1) AU2017357452B2 (es)
CA (1) CA3045847C (es)
ES (2) ES2830954T3 (es)
MX (1) MX387555B (es)
MY (1) MY198762A (es)
PL (2) PL3539127T3 (es)
PT (1) PT3539127T (es)
RU (1) RU2727861C1 (es)
TW (1) TWI665660B (es)
WO (1) WO2018086946A1 (es)
ZA (1) ZA201903536B (es)

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KR102847181B1 (ko) 2019-03-06 2025-08-20 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 다운믹서 및 다운믹싱 방법
WO2020216459A1 (en) 2019-04-23 2020-10-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method or computer program for generating an output downmix representation
EP4202921A4 (en) * 2020-09-28 2024-02-21 Samsung Electronics Co., Ltd. AUDIO ENCODING APPARATUS AND METHOD AND AUDIO DECODING APPARATUS AND METHOD
AU2021393468A1 (en) * 2020-12-02 2023-07-20 Dolby International Ab Immersive voice and audio services (ivas) with adaptive downmix strategies
EP4320615B1 (en) * 2021-04-06 2025-12-03 Dolby International AB Coding of envelope information of an audio downmix signal

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US7447317B2 (en) * 2003-10-02 2008-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Compatible multi-channel coding/decoding by weighting the downmix channel
KR101158698B1 (ko) * 2004-04-05 2012-06-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 복수-채널 인코더, 입력 신호를 인코딩하는 방법, 저장 매체, 및 인코딩된 출력 데이터를 디코딩하도록 작동하는 디코더
US7391870B2 (en) * 2004-07-09 2008-06-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V Apparatus and method for generating a multi-channel output signal
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WO2010105926A2 (en) * 2009-03-17 2010-09-23 Dolby International Ab Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding
ES2511390T3 (es) 2009-04-08 2014-10-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparato, procedimiento y programa de computación para mezclar en forma ascendente una señal de audio con mezcla descendente utilizando una suavización de valor de fase
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JP5604933B2 (ja) * 2010-03-30 2014-10-15 富士通株式会社 ダウンミクス装置およびダウンミクス方法
CA3105050C (en) * 2010-04-09 2021-08-31 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
PL3779979T3 (pl) * 2010-04-13 2024-01-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sposób dekodowania audio do przetwarzania sygnałów audio stereo z wykorzystaniem zmiennego kierunku predykcji
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FR2966634A1 (fr) * 2010-10-22 2012-04-27 France Telecom Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase
CN103548080B (zh) * 2012-05-11 2017-03-08 松下电器产业株式会社 声音信号混合编码器、声音信号混合解码器、声音信号编码方法以及声音信号解码方法
KR20140017338A (ko) * 2012-07-31 2014-02-11 인텔렉추얼디스커버리 주식회사 오디오 신호 처리 장치 및 방법
ES2934646T3 (es) * 2013-04-05 2023-02-23 Dolby Int Ab Sistema de procesamiento de audio
EP2838086A1 (en) * 2013-07-22 2015-02-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment
EP2854133A1 (en) * 2013-09-27 2015-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generation of a downmix signal
WO2017049396A1 (en) * 2015-09-25 2017-03-30 Voiceage Corporation Method and system for time domain down mixing a stereo sound signal into primary and secondary channels using detecting an out-of-phase condition of the left and right channels

Also Published As

Publication number Publication date
US20200243096A1 (en) 2020-07-30
PL3748633T3 (pl) 2025-11-24
PT3539127T (pt) 2020-12-04
ES3042934T3 (en) 2025-11-24
CN110419079B (zh) 2023-06-27
EP3539127B1 (en) 2020-09-02
CN110419079A (zh) 2019-11-05
AU2017357452A1 (en) 2019-06-27
CN116741185A (zh) 2023-09-12
US11670307B2 (en) 2023-06-06
CA3045847C (en) 2021-06-15
US10665246B2 (en) 2020-05-26
JP7210530B2 (ja) 2023-01-23
US20220068284A1 (en) 2022-03-03
ZA201903536B (en) 2021-04-28
PL3539127T3 (pl) 2021-04-19
AU2017357452B2 (en) 2020-12-24
US11183196B2 (en) 2021-11-23
JP7621396B2 (ja) 2025-01-24
ES2830954T3 (es) 2021-06-07
JP6817433B2 (ja) 2021-01-20
EP3748633B1 (en) 2025-07-16
EP3748633C0 (en) 2025-07-16
AR110147A1 (es) 2019-02-27
JP2021060610A (ja) 2021-04-15
MX387555B (es) 2025-03-18
TW201830378A (zh) 2018-08-16
US20190272833A1 (en) 2019-09-05
JP2019537057A (ja) 2019-12-19
MY198762A (en) 2023-09-25
TWI665660B (zh) 2019-07-11
KR20190072653A (ko) 2019-06-25
EP3539127A1 (en) 2019-09-18
EP3748633A1 (en) 2020-12-09
BR112019009424A2 (pt) 2019-07-30
JP2023052322A (ja) 2023-04-11
RU2727861C1 (ru) 2020-07-24
CA3045847A1 (en) 2018-05-17
WO2018086946A1 (en) 2018-05-17
KR102291792B1 (ko) 2021-08-20

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