BRPI0923440A2 - virtualizador e método de som sorround com compressão de faixa dinâmica - Google Patents

virtualizador e método de som sorround com compressão de faixa dinâmica

Info

Publication number
BRPI0923440A2
BRPI0923440A2 BRPI0923440A BRPI0923440A BRPI0923440A2 BR PI0923440 A2 BRPI0923440 A2 BR PI0923440A2 BR PI0923440 A BRPI0923440 A BR PI0923440A BR PI0923440 A BRPI0923440 A BR PI0923440A BR PI0923440 A2 BRPI0923440 A2 BR PI0923440A2
Authority
BR
Brazil
Prior art keywords
virtounder
sorround
dynamic range
range compression
sound method
Prior art date
Application number
BRPI0923440A
Other languages
English (en)
Inventor
Charles Phillip Brown
Original Assignee
Dolby Lab Licensing Corp
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 Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of BRPI0923440A2 publication Critical patent/BRPI0923440A2/pt
Publication of BRPI0923440A8 publication Critical patent/BRPI0923440A8/pt
Publication of BRPI0923440B1 publication Critical patent/BRPI0923440B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
BRPI0923440-3A 2008-12-15 2009-12-01 método de virtualização de som surround e sistema de virtualização de som surround BRPI0923440B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12264708P 2008-12-15 2008-12-15
US61/122,647 2008-12-15
PCT/US2009/066230 WO2010074893A1 (en) 2008-12-15 2009-12-01 Surround sound virtualizer and method with dynamic range compression

Publications (3)

Publication Number Publication Date
BRPI0923440A2 true BRPI0923440A2 (pt) 2016-01-12
BRPI0923440A8 BRPI0923440A8 (pt) 2017-09-12
BRPI0923440B1 BRPI0923440B1 (pt) 2021-02-02

Family

ID=41651132

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0923440-3A BRPI0923440B1 (pt) 2008-12-15 2009-12-01 método de virtualização de som surround e sistema de virtualização de som surround

Country Status (12)

Country Link
US (1) US8867750B2 (pt)
EP (1) EP2374288B1 (pt)
CN (1) CN102246544B (pt)
AU (1) AU2009330534B2 (pt)
BR (1) BRPI0923440B1 (pt)
CA (1) CA2744459C (pt)
IL (1) IL212895A0 (pt)
MY (1) MY180232A (pt)
RU (1) RU2491764C2 (pt)
SG (1) SG171324A1 (pt)
UA (1) UA101542C2 (pt)
WO (1) WO2010074893A1 (pt)

Families Citing this family (28)

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US8315398B2 (en) 2007-12-21 2012-11-20 Dts Llc System for adjusting perceived loudness of audio signals
JP5341919B2 (ja) * 2008-02-14 2013-11-13 ドルビー ラボラトリーズ ライセンシング コーポレイション ステレオ音響の拡幅
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
KR20120004909A (ko) * 2010-07-07 2012-01-13 삼성전자주식회사 입체 음향 재생 방법 및 장치
TWI479905B (zh) * 2012-01-12 2015-04-01 Univ Nat Central Multi-channel down mixing device
FR2986932B1 (fr) * 2012-02-13 2014-03-07 Franck Rosset Procede de synthese transaurale pour la spatialisation sonore
US9312829B2 (en) * 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
JP5897219B2 (ja) 2012-08-31 2016-03-30 ドルビー ラボラトリーズ ライセンシング コーポレイション オブジェクト・ベースのオーディオの仮想レンダリング
JP6079119B2 (ja) 2012-10-10 2017-02-15 ティアック株式会社 録音装置
JP6056356B2 (ja) 2012-10-10 2017-01-11 ティアック株式会社 録音装置
CN104078050A (zh) 2013-03-26 2014-10-01 杜比实验室特许公司 用于音频分类和音频处理的设备和方法
CN104581610B (zh) * 2013-10-24 2018-04-27 华为技术有限公司 一种虚拟立体声合成方法及装置
EP3114859B1 (en) 2014-03-06 2018-05-09 Dolby Laboratories Licensing Corporation Structural modeling of the head related impulse response
CN106465027B (zh) * 2014-05-13 2019-06-04 弗劳恩霍夫应用研究促进协会 用于边缘衰落幅度平移的装置和方法
JP6558047B2 (ja) * 2015-04-24 2019-08-14 株式会社Ｊｖｃケンウッド 信号処理装置及び信号処理方法
US9860666B2 (en) 2015-06-18 2018-01-02 Nokia Technologies Oy Binaural audio reproduction
KR20180075610A (ko) * 2015-10-27 2018-07-04 앰비디오 인코포레이티드 사운드 스테이지 향상을 위한 장치 및 방법
US10306392B2 (en) 2015-11-03 2019-05-28 Dolby Laboratories Licensing Corporation Content-adaptive surround sound virtualization
CA3004962A1 (en) * 2015-11-10 2017-05-18 Lee F. Bender Digital audio processing systems and methods
WO2017192972A1 (en) 2016-05-06 2017-11-09 Dts, Inc. Immersive audio reproduction systems
WO2018132417A1 (en) 2017-01-13 2018-07-19 Dolby Laboratories Licensing Corporation Dynamic equalization for cross-talk cancellation
EP3583786A4 (en) * 2017-02-17 2020-12-23 Ambidio, Inc. DEVICE AND METHOD FOR DOWN MIXING OF MULTI-CHANNEL AUDIO SIGNALS
US10979844B2 (en) 2017-03-08 2021-04-13 Dts, Inc. Distributed audio virtualization systems
GB2569214B (en) * 2017-10-13 2021-11-24 Dolby Laboratories Licensing Corp Systems and methods for providing an immersive listening experience in a limited area using a rear sound bar
US10764704B2 (en) * 2018-03-22 2020-09-01 Boomcloud 360, Inc. Multi-channel subband spatial processing for loudspeakers
WO2019246457A1 (en) 2018-06-22 2019-12-26 Dolby Laboratories Licensing Corporation Multichannel audio enhancement, decoding, and rendering in response to feedback
US10841728B1 (en) 2019-10-10 2020-11-17 Boomcloud 360, Inc. Multi-channel crosstalk processing
US11533560B2 (en) 2019-11-15 2022-12-20 Boomcloud 360 Inc. Dynamic rendering device metadata-informed audio enhancement system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578854A (en) 1976-02-27 1980-11-12 Victor Company Of Japan Stereophonic sound reproduction system
SU1626410A1 (ru) * 1988-10-17 1991-02-07 Предприятие П/Я М-5653 Устройство приема сигналов с частотным разделением каналов
US5471651A (en) * 1991-03-20 1995-11-28 British Broadcasting Corporation Method and system for compressing the dynamic range of audio signals
US20030169886A1 (en) 1995-01-10 2003-09-11 Boyce Roger W. Method and apparatus for encoding mixed surround sound into a single stereo pair
US5912976A (en) 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
US6449368B1 (en) * 1997-03-14 2002-09-10 Dolby Laboratories Licensing Corporation Multidirectional audio decoding
US6175631B1 (en) 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
TWI230024B (en) * 2001-12-18 2005-03-21 Dolby Lab Licensing Corp Method and audio apparatus for improving spatial perception of multiple sound channels when reproduced by two loudspeakers
US7551745B2 (en) 2003-04-24 2009-06-23 Dolby Laboratories Licensing Corporation Volume and compression control in movie theaters
DE602004005234T2 (de) 2003-07-07 2007-11-08 Koninklijke Philips Electronics N.V. System und verfahren zur signalverarbeitung
US6937737B2 (en) * 2003-10-27 2005-08-30 Britannia Investment Corporation Multi-channel audio surround sound from front located loudspeakers
KR100608024B1 (ko) 2004-11-26 2006-08-02 삼성전자주식회사 다중 채널 오디오 입력 신호를 2채널 출력으로 재생하기위한 장치 및 방법과 이를 수행하기 위한 프로그램이기록된 기록매체
US8175280B2 (en) * 2006-03-24 2012-05-08 Dolby International Ab Generation of spatial downmixes from parametric representations of multi channel signals

Also Published As

Publication number Publication date
CN102246544B (zh) 2015-05-13
MY180232A (en) 2020-11-25
AU2009330534A1 (en) 2011-10-27
EP2374288B1 (en) 2018-02-14
AU2009330534B2 (en) 2014-07-17
SG171324A1 (en) 2011-07-28
BRPI0923440B1 (pt) 2021-02-02
RU2491764C2 (ru) 2013-08-27
US8867750B2 (en) 2014-10-21
EP2374288A1 (en) 2011-10-12
UA101542C2 (ru) 2013-04-10
RU2011129155A (ru) 2013-01-20
CA2744459C (en) 2016-06-14
US20110243338A1 (en) 2011-10-06
WO2010074893A1 (en) 2010-07-01
CA2744459A1 (en) 2010-07-01
BRPI0923440A8 (pt) 2017-09-12
IL212895A0 (en) 2011-07-31
CN102246544A (zh) 2011-11-16

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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