PT3539127T - Dispositivo de downmix e método para executar o downmix de pelo menos dois canais e codificador multicanal e descodificador multicanal - Google Patents
Dispositivo de downmix e método para executar o downmix de pelo menos dois canais e codificador multicanal e descodificador multicanalInfo
- Publication number
- PT3539127T PT3539127T PT177972890T PT17797289T PT3539127T PT 3539127 T PT3539127 T PT 3539127T PT 177972890 T PT177972890 T PT 177972890T PT 17797289 T PT17797289 T PT 17797289T PT 3539127 T PT3539127 T PT 3539127T
- Authority
- PT
- Portugal
- Prior art keywords
- multichannel
- downmixer
- downmixing
- channels
- encoder
- Prior art date
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)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
- Time-Division Multiplex Systems (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16197813 | 2016-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT3539127T true PT3539127T (pt) | 2020-12-04 |
Family
ID=60302095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT177972890T PT3539127T (pt) | 2016-11-08 | 2017-10-30 | Dispositivo de downmix e método para executar o downmix de pelo menos dois canais e codificador multicanal e descodificador multicanal |
Country Status (17)
| Country | Link |
|---|---|
| US (3) | US10665246B2 (pt) |
| EP (2) | EP3748633A1 (pt) |
| JP (3) | JP6817433B2 (pt) |
| KR (1) | KR102291792B1 (pt) |
| CN (2) | CN110419079B (pt) |
| AR (1) | AR110147A1 (pt) |
| AU (1) | AU2017357452B2 (pt) |
| BR (1) | BR112019009424A2 (pt) |
| CA (1) | CA3045847C (pt) |
| ES (1) | ES2830954T3 (pt) |
| MX (1) | MX2019005214A (pt) |
| PL (1) | PL3539127T3 (pt) |
| PT (1) | PT3539127T (pt) |
| RU (1) | RU2727861C1 (pt) |
| TW (1) | TWI665660B (pt) |
| WO (1) | WO2018086946A1 (pt) |
| ZA (1) | ZA201903536B (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11521055B2 (en) | 2018-04-14 | 2022-12-06 | International Business Machines Corporation | Optical synapse |
| US11157807B2 (en) | 2018-04-14 | 2021-10-26 | International Business Machines Corporation | Optical neuron |
| MX2021010570A (es) * | 2019-03-06 | 2021-10-13 | Fraunhofer Ges Forschung | Mezcladora para reducir el numero de canales de audio y metodo de mezclado para reducir el numero de canales de audio. |
| 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 |
| WO2022065933A1 (ko) * | 2020-09-28 | 2022-03-31 | 삼성전자 주식회사 | 오디오의 부호화 장치 및 방법, 및 오디오의 복호화 장치 및 방법 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7447629B2 (en) * | 2002-07-12 | 2008-11-04 | Koninklijke Philips Electronics N.V. | Audio coding |
| EP1606797B1 (en) | 2003-03-17 | 2010-11-03 | Koninklijke Philips Electronics N.V. | Processing of multi-channel signals |
| 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 |
| MXPA06011361A (es) * | 2004-04-05 | 2007-01-16 | Koninkl Philips Electronics Nv | Codificador de canales multiples. |
| 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 |
| WO2006059567A1 (ja) * | 2004-11-30 | 2006-06-08 | Matsushita Electric Industrial Co., Ltd. | ステレオ符号化装置、ステレオ復号装置、およびこれらの方法 |
| US7573912B2 (en) * | 2005-02-22 | 2009-08-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. | Near-transparent or transparent multi-channel encoder/decoder scheme |
| EP2100297A4 (en) | 2006-09-29 | 2011-07-27 | Korea Electronics Telecomm | DEVICE AND METHOD FOR CODING AND DECODING A MEHROBJECT AUDIO SIGNAL WITH DIFFERENT CHANNELS |
| WO2009039897A1 (en) * | 2007-09-26 | 2009-04-02 | Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Apparatus and method for extracting an ambient signal in an apparatus and method for obtaining weighting coefficients for extracting an ambient signal and computer program |
| RU2452043C2 (ru) | 2007-10-17 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Аудиокодирование с использованием понижающего микширования |
| BRPI0908630B1 (pt) * | 2008-05-23 | 2020-09-15 | Koninklijke Philips N.V. | Aparelho de 'upmix' estéreo paramétrico, decodificador estéreo paramétrico, método para a geração de um sinal esquerdo e de um sinal direito a partir de um sinal de 'downmix' mono com base em parâmetros espaciais, dispositivo de execução de áudio, aparelho de 'downmix' estéreo paramétrico, codificador estéreo paramétrico, método para a geração de um sinal residual de previsão para um sinal de diferença a partir de um sinal esquerdo e de um sinal direito com base nos parâmetros espaciais, e, produto de programa de computador |
| EP2144229A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Efficient use of phase information in audio encoding and decoding |
| BR122019023877B1 (pt) | 2009-03-17 | 2021-08-17 | Dolby International Ab | Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo |
| BRPI1004215B1 (pt) * | 2009-04-08 | 2021-08-17 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Aparelho e método para upmixagem de sinal de áudio downmix utilizando uma atenuação de valor de fase |
| EP2489040A1 (fr) * | 2009-10-16 | 2012-08-22 | France Telecom | Decodage parametrique stereo optimise |
| EP2323130A1 (en) * | 2009-11-12 | 2011-05-18 | Koninklijke Philips Electronics N.V. | Parametric encoding and decoding |
| 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 |
| IL311483A (en) * | 2010-04-09 | 2024-05-01 | Dolby Int Ab | An uplink mixer is active in predictive or non-predictive mode |
| CA2796292C (en) * | 2010-04-13 | 2016-06-07 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction direction |
| JP5775583B2 (ja) | 2010-08-25 | 2015-09-09 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 送信された位相情報を用いてデコリレート済み信号を生成する装置 |
| FR2966634A1 (fr) * | 2010-10-22 | 2012-04-27 | France Telecom | Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase |
| JP6126006B2 (ja) * | 2012-05-11 | 2017-05-10 | パナソニック株式会社 | 音信号ハイブリッドエンコーダ、音信号ハイブリッドデコーダ、音信号符号化方法、及び音信号復号方法 |
| KR20140017338A (ko) * | 2012-07-31 | 2014-02-11 | 인텔렉추얼디스커버리 주식회사 | 오디오 신호 처리 장치 및 방법 |
| WO2014161996A2 (en) * | 2013-04-05 | 2014-10-09 | Dolby International Ab | Audio processing system |
| 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 |
| EP3961623A1 (en) * | 2015-09-25 | 2022-03-02 | VoiceAge Corporation | Method and system for decoding left and right channels of a stereo sound signal |
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2017
- 2017-10-30 RU RU2019116605A patent/RU2727861C1/ru active
- 2017-10-30 JP JP2019523611A patent/JP6817433B2/ja active Active
- 2017-10-30 AU AU2017357452A patent/AU2017357452B2/en active Active
- 2017-10-30 EP EP20187260.3A patent/EP3748633A1/en active Pending
- 2017-10-30 PL PL17797289T patent/PL3539127T3/pl unknown
- 2017-10-30 BR BR112019009424A patent/BR112019009424A2/pt unknown
- 2017-10-30 CN CN201780082544.9A patent/CN110419079B/zh active Active
- 2017-10-30 WO PCT/EP2017/077820 patent/WO2018086946A1/en active Search and Examination
- 2017-10-30 CA CA3045847A patent/CA3045847C/en active Active
- 2017-10-30 ES ES17797289T patent/ES2830954T3/es active Active
- 2017-10-30 CN CN202310693632.XA patent/CN116741185A/zh active Pending
- 2017-10-30 KR KR1020197016213A patent/KR102291792B1/ko active IP Right Grant
- 2017-10-30 PT PT177972890T patent/PT3539127T/pt unknown
- 2017-10-30 MX MX2019005214A patent/MX2019005214A/es unknown
- 2017-10-30 EP EP17797289.0A patent/EP3539127B1/en active Active
- 2017-11-07 TW TW106138444A patent/TWI665660B/zh active
- 2017-11-08 AR ARP170103098A patent/AR110147A1/es active IP Right Grant
-
2019
- 2019-04-26 US US16/395,933 patent/US10665246B2/en active Active
- 2019-06-03 ZA ZA2019/03536A patent/ZA201903536B/en unknown
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2020
- 2020-04-13 US US16/847,403 patent/US11183196B2/en active Active
- 2020-12-24 JP JP2020215169A patent/JP7210530B2/ja active Active
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2021
- 2021-10-14 US US17/501,356 patent/US11670307B2/en active Active
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2023
- 2023-01-11 JP JP2023002454A patent/JP2023052322A/ja active Pending
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