BR112014003663B1 - Matrizes de mixagem ideal e uso de descorrelacionadores no processamento de áudio espacial - Google Patents
Matrizes de mixagem ideal e uso de descorrelacionadores no processamento de áudio espacial Download PDFInfo
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- BR112014003663B1 BR112014003663B1 BR112014003663-2A BR112014003663A BR112014003663B1 BR 112014003663 B1 BR112014003663 B1 BR 112014003663B1 BR 112014003663 A BR112014003663 A BR 112014003663A BR 112014003663 B1 BR112014003663 B1 BR 112014003663B1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
- G10H1/183—Channel-assigning means for polyphonic instruments
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- G—PHYSICS
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- 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
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- 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
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- G—PHYSICS
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- 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
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Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161524647P | 2011-08-17 | 2011-08-17 | |
| US61/524.647 | 2011-08-17 | ||
| US61/524,647 | 2011-08-17 | ||
| EP12156351.4 | 2012-02-21 | ||
| EP12156351A EP2560161A1 (en) | 2011-08-17 | 2012-02-21 | Optimal mixing matrices and usage of decorrelators in spatial audio processing |
| PCT/EP2012/065861 WO2013024085A1 (en) | 2011-08-17 | 2012-08-14 | Optimal mixing matrices and usage of decorrelators in spatial audio processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112014003663A2 BR112014003663A2 (pt) | 2020-10-27 |
| BR112014003663B1 true BR112014003663B1 (pt) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112014003663-2A BR112014003663B1 (pt) | 2011-08-17 | 2012-08-14 | Matrizes de mixagem ideal e uso de descorrelacionadores no processamento de áudio espacial |
Country Status (15)
| Country | Link |
|---|---|
| US (3) | US10339908B2 (https=) |
| EP (2) | EP2560161A1 (https=) |
| JP (1) | JP5846460B2 (https=) |
| KR (1) | KR101633441B1 (https=) |
| CN (1) | CN103765507B (https=) |
| AR (1) | AR087564A1 (https=) |
| AU (1) | AU2012296895B2 (https=) |
| BR (1) | BR112014003663B1 (https=) |
| CA (1) | CA2843820C (https=) |
| ES (1) | ES2499640T3 (https=) |
| MX (1) | MX2014001731A (https=) |
| PL (1) | PL2617031T3 (https=) |
| RU (1) | RU2631023C2 (https=) |
| TW (1) | TWI489447B (https=) |
| WO (1) | WO2013024085A1 (https=) |
Families Citing this family (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2805326B1 (en) * | 2012-01-19 | 2015-10-14 | Koninklijke Philips N.V. | Spatial audio rendering and encoding |
| WO2013120510A1 (en) * | 2012-02-14 | 2013-08-22 | Huawei Technologies Co., Ltd. | A method and apparatus for performing an adaptive down- and up-mixing of a multi-channel audio signal |
| EP2688066A1 (en) | 2012-07-16 | 2014-01-22 | Thomson Licensing | Method and apparatus for encoding multi-channel HOA audio signals for noise reduction, and method and apparatus for decoding multi-channel HOA audio signals for noise reduction |
| US9466305B2 (en) | 2013-05-29 | 2016-10-11 | Qualcomm Incorporated | Performing positional analysis to code spherical harmonic coefficients |
| US9495968B2 (en) | 2013-05-29 | 2016-11-15 | Qualcomm Incorporated | Identifying sources from which higher order ambisonic audio data is generated |
| KR102161169B1 (ko) * | 2013-07-05 | 2020-09-29 | 한국전자통신연구원 | 오디오 신호 처리 방법 및 장치 |
| EP2830045A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Concept for audio encoding and decoding for audio channels and audio objects |
| EP2830048A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for realizing a SAOC downmix of 3D audio content |
| EP2830047A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for low delay object metadata coding |
| EP2830332A3 (en) | 2013-07-22 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method, signal processing unit, and computer program for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration |
| EP2866227A1 (en) | 2013-10-22 | 2015-04-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder |
| US9502045B2 (en) | 2014-01-30 | 2016-11-22 | Qualcomm Incorporated | Coding independent frames of ambient higher-order ambisonic coefficients |
| US9922656B2 (en) | 2014-01-30 | 2018-03-20 | Qualcomm Incorporated | Transitioning of ambient higher-order ambisonic coefficients |
| US9852737B2 (en) | 2014-05-16 | 2017-12-26 | Qualcomm Incorporated | Coding vectors decomposed from higher-order ambisonics audio signals |
| US9620137B2 (en) | 2014-05-16 | 2017-04-11 | Qualcomm Incorporated | Determining between scalar and vector quantization in higher order ambisonic coefficients |
| US10770087B2 (en) | 2014-05-16 | 2020-09-08 | Qualcomm Incorporated | Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals |
| DE112015003108B4 (de) * | 2014-07-01 | 2021-03-04 | Electronics And Telecommunications Research Institute | Verfahren und Vorrichtung zur Verarbeitung eines Mehrkanal-Audiosignals |
| US9747910B2 (en) | 2014-09-26 | 2017-08-29 | Qualcomm Incorporated | Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework |
| US20160171987A1 (en) * | 2014-12-16 | 2016-06-16 | Psyx Research, Inc. | System and method for compressed audio enhancement |
| US9712936B2 (en) | 2015-02-03 | 2017-07-18 | Qualcomm Incorporated | Coding higher-order ambisonic audio data with motion stabilization |
| ES2922373T3 (es) | 2015-03-03 | 2022-09-14 | Dolby Laboratories Licensing Corp | Realce de señales de audio espacial por decorrelación modulada |
| DK3065422T3 (da) * | 2015-03-04 | 2019-05-20 | Starkey Labs Inc | Teknikker til forbedring af behandlingskapacitet i høreapparater |
| EP3357259B1 (en) | 2015-09-30 | 2020-09-23 | Dolby International AB | Method and apparatus for generating 3d audio content from two-channel stereo content |
| WO2017127271A1 (en) * | 2016-01-18 | 2017-07-27 | Boomcloud 360, Inc. | Subband spatial and crosstalk cancellation for audio reproduction |
| US10225657B2 (en) | 2016-01-18 | 2019-03-05 | Boomcloud 360, Inc. | Subband spatial and crosstalk cancellation for audio reproduction |
| US10009705B2 (en) * | 2016-01-19 | 2018-06-26 | Boomcloud 360, Inc. | Audio enhancement for head-mounted speakers |
| WO2017143003A1 (en) * | 2016-02-18 | 2017-08-24 | Dolby Laboratories Licensing Corporation | Processing of microphone signals for spatial playback |
| US11234072B2 (en) | 2016-02-18 | 2022-01-25 | Dolby Laboratories Licensing Corporation | Processing of microphone signals for spatial playback |
| US10923132B2 (en) | 2016-02-19 | 2021-02-16 | Dolby Laboratories Licensing Corporation | Diffusivity based sound processing method and apparatus |
| GB2554446A (en) | 2016-09-28 | 2018-04-04 | Nokia Technologies Oy | Spatial audio signal format generation from a microphone array using adaptive capture |
| US10979844B2 (en) * | 2017-03-08 | 2021-04-13 | Dts, Inc. | Distributed audio virtualization systems |
| US9820073B1 (en) | 2017-05-10 | 2017-11-14 | Tls Corp. | Extracting a common signal from multiple audio signals |
| US10313820B2 (en) | 2017-07-11 | 2019-06-04 | Boomcloud 360, Inc. | Sub-band spatial audio enhancement |
| GB201718341D0 (en) * | 2017-11-06 | 2017-12-20 | Nokia Technologies Oy | Determination of targeted spatial audio parameters and associated spatial audio playback |
| US10764704B2 (en) | 2018-03-22 | 2020-09-01 | Boomcloud 360, Inc. | Multi-channel subband spatial processing for loudspeakers |
| GB2572420A (en) * | 2018-03-29 | 2019-10-02 | Nokia Technologies Oy | Spatial sound rendering |
| GB2572650A (en) * | 2018-04-06 | 2019-10-09 | Nokia Technologies Oy | Spatial audio parameters and associated spatial audio playback |
| GB2574239A (en) | 2018-05-31 | 2019-12-04 | Nokia Technologies Oy | Signalling of spatial audio parameters |
| CN110782911A (zh) * | 2018-07-30 | 2020-02-11 | 阿里巴巴集团控股有限公司 | 音频信号处理方法、装置、设备和存储介质 |
| GB2582749A (en) * | 2019-03-28 | 2020-10-07 | Nokia Technologies Oy | Determination of the significance of spatial audio parameters and associated encoding |
| CA3193359A1 (en) | 2019-06-14 | 2020-12-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Parameter encoding and decoding |
| KR102854679B1 (ko) * | 2019-08-01 | 2025-09-05 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 공분산 평활화를 위한 시스템 및 방법 |
| GB2587357A (en) * | 2019-09-24 | 2021-03-31 | Nokia Technologies Oy | Audio processing |
| US10841728B1 (en) | 2019-10-10 | 2020-11-17 | Boomcloud 360, Inc. | Multi-channel crosstalk processing |
| CN112653985B (zh) * | 2019-10-10 | 2022-09-27 | 高迪奥实验室公司 | 使用2声道立体声扬声器处理音频信号的方法和设备 |
| GB2589321A (en) | 2019-11-25 | 2021-06-02 | Nokia Technologies Oy | Converting binaural signals to stereo audio signals |
| GB2594265A (en) * | 2020-04-20 | 2021-10-27 | Nokia Technologies Oy | Apparatus, methods and computer programs for enabling rendering of spatial audio signals |
| GB2595871A (en) * | 2020-06-09 | 2021-12-15 | Nokia Technologies Oy | The reduction of spatial audio parameters |
| GB2596318A (en) * | 2020-06-24 | 2021-12-29 | Nokia Technologies Oy | Suppressing spatial noise in multi-microphone devices |
| KR20230062836A (ko) * | 2020-09-09 | 2023-05-09 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 파라미터적으로 코딩된 오디오 처리 |
| US11373662B2 (en) * | 2020-11-03 | 2022-06-28 | Bose Corporation | Audio system height channel up-mixing |
| WO2023147864A1 (en) * | 2022-02-03 | 2023-08-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method to transform an audio stream |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4298466B2 (ja) * | 2003-10-30 | 2009-07-22 | 日本電信電話株式会社 | 収音方法、装置、プログラム、および記録媒体 |
| SE0402652D0 (sv) * | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Methods for improved performance of prediction based multi- channel reconstruction |
| DE602006015294D1 (de) | 2005-03-30 | 2010-08-19 | Dolby Int Ab | Mehrkanal-audiocodierung |
| WO2007111568A2 (en) | 2006-03-28 | 2007-10-04 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for a decoder for multi-channel surround sound |
| EP2102856A4 (en) * | 2006-12-07 | 2010-01-13 | Lg Electronics Inc | METHOD AND DEVICE FOR PROCESSING AN AUDIO SIGNAL |
| CN101542595B (zh) * | 2007-02-14 | 2016-04-13 | Lg电子株式会社 | 用于编码和解码基于对象的音频信号的方法和装置 |
| CA2645915C (en) | 2007-02-14 | 2012-10-23 | Lg Electronics Inc. | Methods and apparatuses for encoding and decoding object-based audio signals |
| CA2684975C (en) | 2007-04-26 | 2016-08-02 | Dolby Sweden Ab | Apparatus and method for synthesizing an output signal |
| JP5883561B2 (ja) * | 2007-10-17 | 2016-03-15 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | アップミックスを使用した音声符号器 |
| US8315396B2 (en) * | 2008-07-17 | 2012-11-20 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating audio output signals using object based metadata |
| US8705749B2 (en) * | 2008-08-14 | 2014-04-22 | Dolby Laboratories Licensing Corporation | Audio signal transformatting |
| KR20100111499A (ko) * | 2009-04-07 | 2010-10-15 | 삼성전자주식회사 | 목적음 추출 장치 및 방법 |
| CA2775828C (en) * | 2009-09-29 | 2016-03-29 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value |
| TWI396186B (zh) * | 2009-11-12 | 2013-05-11 | Nat Cheng Kong University | 基於盲訊號分離語音增強技術之遠距離雜訊語音辨識 |
| WO2010086462A2 (en) * | 2010-05-04 | 2010-08-05 | Phonak Ag | Methods for operating a hearing device as well as hearing devices |
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2012
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| AU2012296895B2 (en) | 2015-07-16 |
| CN103765507A (zh) | 2014-04-30 |
| JP2014526065A (ja) | 2014-10-02 |
| TW201320059A (zh) | 2013-05-16 |
| US20200372884A1 (en) | 2020-11-26 |
| HK1187731A1 (en) | 2014-04-11 |
| KR101633441B1 (ko) | 2016-07-08 |
| US11282485B2 (en) | 2022-03-22 |
| TWI489447B (zh) | 2015-06-21 |
| RU2014110030A (ru) | 2015-09-27 |
| ES2499640T3 (es) | 2014-09-29 |
| BR112014003663A2 (pt) | 2020-10-27 |
| US10339908B2 (en) | 2019-07-02 |
| AR087564A1 (es) | 2014-04-03 |
| CN103765507B (zh) | 2016-01-20 |
| US20140233762A1 (en) | 2014-08-21 |
| CA2843820A1 (en) | 2013-02-21 |
| EP2617031B1 (en) | 2014-07-23 |
| RU2631023C2 (ru) | 2017-09-15 |
| EP2617031A1 (en) | 2013-07-24 |
| EP2560161A1 (en) | 2013-02-20 |
| CA2843820C (en) | 2016-09-27 |
| MX2014001731A (es) | 2014-03-27 |
| US20190251938A1 (en) | 2019-08-15 |
| JP5846460B2 (ja) | 2016-01-20 |
| AU2012296895A1 (en) | 2014-02-27 |
| KR20140047731A (ko) | 2014-04-22 |
| PL2617031T3 (pl) | 2015-01-30 |
| US10748516B2 (en) | 2020-08-18 |
| WO2013024085A1 (en) | 2013-02-21 |
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