HK1175628A1 - Multichannel audio system having audio channel compensation - Google Patents

Multichannel audio system having audio channel compensation

Info

Publication number
HK1175628A1
HK1175628A1 HK13102846.7A HK13102846A HK1175628A1 HK 1175628 A1 HK1175628 A1 HK 1175628A1 HK 13102846 A HK13102846 A HK 13102846A HK 1175628 A1 HK1175628 A1 HK 1175628A1
Authority
HK
Hong Kong
Prior art keywords
audio
channel compensation
multichannel
audio system
audio channel
Prior art date
Application number
HK13102846.7A
Other languages
English (en)
Chinese (zh)
Inventor
Gilbert Arthur Joseph Soulodre
Original Assignee
哈曼國際工業有限公司
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 哈曼國際工業有限公司 filed Critical 哈曼國際工業有限公司
Publication of HK1175628A1 publication Critical patent/HK1175628A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—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
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
HK13102846.7A 2009-10-05 2013-03-07 Multichannel audio system having audio channel compensation HK1175628A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24876009P 2009-10-05 2009-10-05
PCT/US2010/051371 WO2011044063A2 (en) 2009-10-05 2010-10-04 Multichannel audio system having audio channel compensation

Publications (1)

Publication Number Publication Date
HK1175628A1 true HK1175628A1 (en) 2013-07-05

Family

ID=43447738

Family Applications (1)

Application Number Title Priority Date Filing Date
HK13102846.7A HK1175628A1 (en) 2009-10-05 2013-03-07 Multichannel audio system having audio channel compensation

Country Status (8)

Country Link
US (2) US9100766B2 (ja)
EP (1) EP2486736B1 (ja)
JP (1) JP5535325B2 (ja)
KR (1) KR101386360B1 (ja)
CN (2) CN102696244B (ja)
CA (2) CA2941646C (ja)
HK (1) HK1175628A1 (ja)
WO (1) WO2011044063A2 (ja)

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9084058B2 (en) 2011-12-29 2015-07-14 Sonos, Inc. Sound field calibration using listener localization
US9641934B2 (en) 2012-01-10 2017-05-02 Nuance Communications, Inc. In-car communication system for multiple acoustic zones
EP2692155B1 (en) * 2012-03-22 2018-05-16 Dirac Research AB Audio precompensation controller design using a variable set of support loudspeakers
US9106192B2 (en) 2012-06-28 2015-08-11 Sonos, Inc. System and method for device playback calibration
US9690271B2 (en) 2012-06-28 2017-06-27 Sonos, Inc. Speaker calibration
US9668049B2 (en) 2012-06-28 2017-05-30 Sonos, Inc. Playback device calibration user interfaces
US9706323B2 (en) 2014-09-09 2017-07-11 Sonos, Inc. Playback device calibration
US9690539B2 (en) 2012-06-28 2017-06-27 Sonos, Inc. Speaker calibration user interface
US9219460B2 (en) 2014-03-17 2015-12-22 Sonos, Inc. Audio settings based on environment
WO2014091375A1 (en) * 2012-12-14 2014-06-19 Koninklijke Philips N.V. Reverberation processing in an audio signal
CN103220597B (zh) * 2013-03-29 2014-07-23 苏州上声电子有限公司 车内声场均衡装置
CN103730148B (zh) * 2014-01-14 2016-08-17 北京奇艺世纪科技有限公司 音频播放方法及装置
US9264839B2 (en) * 2014-03-17 2016-02-16 Sonos, Inc. Playback device configuration based on proximity detection
JP6311430B2 (ja) * 2014-04-23 2018-04-18 ヤマハ株式会社 音響処理装置
US10147256B2 (en) 2014-08-15 2018-12-04 Collateral Opportunities, Llc Electronic identification, location tracking, communication and notification system
US9466163B2 (en) 2014-08-15 2016-10-11 Collateral Opportunities, Llc Electronic access control and location tracking system
US9984521B1 (en) 2014-08-15 2018-05-29 Collateral Opportunities, Llc Electronic identification, location tracking, communication and notification system with beacon clustering
US9521497B2 (en) 2014-08-21 2016-12-13 Google Technology Holdings LLC Systems and methods for equalizing audio for playback on an electronic device
US9891881B2 (en) 2014-09-09 2018-02-13 Sonos, Inc. Audio processing algorithm database
US9910634B2 (en) 2014-09-09 2018-03-06 Sonos, Inc. Microphone calibration
US10127006B2 (en) 2014-09-09 2018-11-13 Sonos, Inc. Facilitating calibration of an audio playback device
US9952825B2 (en) 2014-09-09 2018-04-24 Sonos, Inc. Audio processing algorithms
US10296945B2 (en) 2014-09-26 2019-05-21 Collateral Opportunities, Llc Electronic identification, location tracking, communication and notification system
JP2018509033A (ja) * 2015-01-20 2018-03-29 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 自動車内での三次元サウンド再生のためのラウドスピーカ配置
JP2016177204A (ja) * 2015-03-20 2016-10-06 ヤマハ株式会社 サウンドマスキング装置
US10664224B2 (en) 2015-04-24 2020-05-26 Sonos, Inc. Speaker calibration user interface
WO2016172593A1 (en) 2015-04-24 2016-10-27 Sonos, Inc. Playback device calibration user interfaces
KR101757531B1 (ko) * 2015-05-07 2017-07-13 전자부품연구원 차량용 광 네트워크 기반 오디오 시스템 및 그의 브로드캐스팅 방법
KR101687825B1 (ko) * 2015-05-18 2016-12-20 현대자동차주식회사 차량 및 그 제어 방법
US9538305B2 (en) 2015-07-28 2017-01-03 Sonos, Inc. Calibration error conditions
JP6468515B2 (ja) * 2015-07-30 2019-02-13 本田技研工業株式会社 車両用シート
US9838849B2 (en) 2015-08-07 2017-12-05 Collateral Opportunities, Llc Electronic identification, location tracking, communication and notification system with beacon clustering
US9693165B2 (en) 2015-09-17 2017-06-27 Sonos, Inc. Validation of audio calibration using multi-dimensional motion check
JP6437695B2 (ja) 2015-09-17 2018-12-12 ソノズ インコーポレイテッド オーディオ再生デバイスのキャリブレーションを容易にする方法
US10187755B2 (en) 2015-09-29 2019-01-22 Collateral Opportunities, Lld Electronic asset location identification and tracking system with receiver clustering
KR20170039520A (ko) * 2015-10-01 2017-04-11 삼성전자주식회사 오디오 출력 장치 및 오디오 출력 장치의 제어 방법
CN108432270B (zh) * 2015-10-08 2021-03-16 班安欧股份公司 扬声器系统中的主动式房间补偿
TW201720345A (zh) * 2015-12-11 2017-06-16 富奇想股份有限公司 智慧鏡功能組件運作方法、智慧鏡功能組件與智慧鏡系統
US9743207B1 (en) 2016-01-18 2017-08-22 Sonos, Inc. Calibration using multiple recording devices
US11106423B2 (en) 2016-01-25 2021-08-31 Sonos, Inc. Evaluating calibration of a playback device
US10003899B2 (en) 2016-01-25 2018-06-19 Sonos, Inc. Calibration with particular locations
US9860662B2 (en) 2016-04-01 2018-01-02 Sonos, Inc. Updating playback device configuration information based on calibration data
US9864574B2 (en) 2016-04-01 2018-01-09 Sonos, Inc. Playback device calibration based on representation spectral characteristics
US9763018B1 (en) 2016-04-12 2017-09-12 Sonos, Inc. Calibration of audio playback devices
US9794710B1 (en) 2016-07-15 2017-10-17 Sonos, Inc. Spatial audio correction
US9860670B1 (en) 2016-07-15 2018-01-02 Sonos, Inc. Spectral correction using spatial calibration
US10372406B2 (en) 2016-07-22 2019-08-06 Sonos, Inc. Calibration interface
US10459684B2 (en) 2016-08-05 2019-10-29 Sonos, Inc. Calibration of a playback device based on an estimated frequency response
EP3510792A1 (en) * 2016-09-12 2019-07-17 Bose Corporation Loudspeaker system
EP3300389B1 (en) * 2016-09-26 2021-06-16 STMicroelectronics (Research & Development) Limited A speaker system and method
CN110771182B (zh) 2017-05-03 2021-11-05 弗劳恩霍夫应用研究促进协会 用于音频渲染的音频处理器、系统、方法和计算机程序
CN109275065B (zh) * 2017-07-17 2024-05-14 宁波升亚电子有限公司 带有声波转向结构的扬声器及其声波转向结构和音效再现方法
US10257633B1 (en) * 2017-09-15 2019-04-09 Htc Corporation Sound-reproducing method and sound-reproducing apparatus
CN109104686B (zh) * 2017-09-30 2019-12-20 惠州市德赛西威汽车电子股份有限公司 一种汽车音响立体声扩展方法
WO2019130206A1 (en) 2017-12-29 2019-07-04 Harman International Industries, Incorporated Asymmetric acoustical implementation for improving a listening experience for a driver in a vehicle
US11929091B2 (en) 2018-04-27 2024-03-12 Dolby Laboratories Licensing Corporation Blind detection of binauralized stereo content
EP4093057A1 (en) * 2018-04-27 2022-11-23 Dolby Laboratories Licensing Corp. Blind detection of binauralized stereo content
US10313819B1 (en) * 2018-06-18 2019-06-04 Bose Corporation Phantom center image control
US10869128B2 (en) 2018-08-07 2020-12-15 Pangissimo Llc Modular speaker system
WO2020030304A1 (en) * 2018-08-09 2020-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. An audio processor and a method considering acoustic obstacles and providing loudspeaker signals
US10299061B1 (en) 2018-08-28 2019-05-21 Sonos, Inc. Playback device calibration
US11206484B2 (en) 2018-08-28 2021-12-21 Sonos, Inc. Passive speaker authentication
US11425521B2 (en) * 2018-10-18 2022-08-23 Dts, Inc. Compensating for binaural loudspeaker directivity
CN109976701B (zh) * 2019-03-14 2022-08-16 广州小鹏汽车科技有限公司 一种声场定位调节方法及车辆音响系统
CN113853803A (zh) 2019-04-02 2021-12-28 辛格股份有限公司 用于空间音频渲染的系统和方法
WO2021008684A1 (en) * 2019-07-16 2021-01-21 Ask Industries Gmbh Method of reproducing an audio signal in a car cabin via a car audio system
US10734965B1 (en) 2019-08-12 2020-08-04 Sonos, Inc. Audio calibration of a portable playback device
FI20195726A1 (en) 2019-09-02 2021-03-03 Genelec Oy A system and method for producing complementary sound
KR20210106691A (ko) * 2020-02-21 2021-08-31 현대자동차주식회사 차량 및 그 제어 방법
CN113596647B (zh) * 2020-04-30 2024-05-28 深圳市韶音科技有限公司 声音输出装置及调节声像的方法
US11659330B2 (en) 2021-04-13 2023-05-23 Spatialx Inc. Adaptive structured rendering of audio channels
US11540059B2 (en) 2021-05-28 2022-12-27 Jvis-Usa, Llc Vibrating panel assembly for radiating sound into a passenger compartment of a vehicle
CN117119358B (zh) * 2023-10-17 2024-01-19 武汉市聚芯微电子有限责任公司 一种声像偏侧的补偿方法、装置、电子设备及存储设备
CN117651238B (zh) * 2024-01-30 2024-05-31 科大讯飞(苏州)科技有限公司 音频播放方法、音频补偿系数的确定方法和汽车

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218585A (en) * 1979-04-05 1980-08-19 Carver R W Dimensional sound producing apparatus and method
JPS56116397A (en) * 1980-02-19 1981-09-12 Matsushita Electric Ind Co Ltd Speaker device
EP0329201B1 (en) * 1984-05-31 1994-07-20 Pioneer Electronic Corporation Mobile sound field correcting device
JPS60254995A (ja) * 1984-05-31 1985-12-16 Pioneer Electronic Corp 車載用音場補正システム
US5136651A (en) * 1987-10-15 1992-08-04 Cooper Duane H Head diffraction compensated stereo system
US5105462A (en) * 1989-08-28 1992-04-14 Qsound Ltd. Sound imaging method and apparatus
US5046097A (en) * 1988-09-02 1991-09-03 Qsound Ltd. Sound imaging process
US5208860A (en) * 1988-09-02 1993-05-04 Qsound Ltd. Sound imaging method and apparatus
JPH03148905A (ja) * 1989-11-02 1991-06-25 Pioneer Electron Corp 音質調整装置
JPH0472799U (ja) * 1990-11-01 1992-06-26
US5594800A (en) * 1991-02-15 1997-01-14 Trifield Productions Limited Sound reproduction system having a matrix converter
JPH05265477A (ja) * 1992-03-23 1993-10-15 Pioneer Electron Corp 音場補正装置
US6853732B2 (en) * 1994-03-08 2005-02-08 Sonics Associates, Inc. Center channel enhancement of virtual sound images
TW247390B (en) * 1994-04-29 1995-05-11 Audio Products Int Corp Apparatus and method for adjusting levels between channels of a sound system
GB9417185D0 (en) * 1994-08-25 1994-10-12 Adaptive Audio Ltd Sounds recording and reproduction systems
US5809150A (en) * 1995-06-28 1998-09-15 Eberbach; Steven J. Surround sound loudspeaker system
US5912975A (en) * 1995-06-30 1999-06-15 Philips Electronics North America Corp Method and circuit for creating phantom sources using phase shifting circuitry
EP0808076B1 (de) * 1996-05-17 2007-11-21 Micronas GmbH Raumklangsystem
US5850455A (en) * 1996-06-18 1998-12-15 Extreme Audio Reality, Inc. Discrete dynamic positioning of audio signals in a 360° environment
AUPO099696A0 (en) * 1996-07-12 1996-08-08 Lake Dsp Pty Limited Methods and apparatus for processing spatialised audio
US6577738B2 (en) * 1996-07-17 2003-06-10 American Technology Corporation Parametric virtual speaker and surround-sound system
US6229899B1 (en) * 1996-07-17 2001-05-08 American Technology Corporation Method and device for developing a virtual speaker distant from the sound source
US6052470A (en) * 1996-09-04 2000-04-18 Victor Company Of Japan, Ltd. System for processing audio surround signal
US5889867A (en) * 1996-09-18 1999-03-30 Bauck; Jerald L. Stereophonic Reformatter
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
DE19646055A1 (de) * 1996-11-07 1998-05-14 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Abbildung von Schallquellen auf Lautsprecher
JP3900208B2 (ja) * 1997-02-06 2007-04-04 ソニー株式会社 音響再生方式および音声信号処理装置
US5949894A (en) * 1997-03-18 1999-09-07 Adaptive Audio Limited Adaptive audio systems and sound reproduction systems
US6236730B1 (en) * 1997-05-19 2001-05-22 Qsound Labs, Inc. Full sound enhancement using multi-input sound signals
US5974153A (en) * 1997-05-19 1999-10-26 Qsound Labs, Inc. Method and system for sound expansion
EP0990370B1 (en) * 1997-06-17 2008-03-05 BRITISH TELECOMMUNICATIONS public limited company Reproduction of spatialised audio
US6173061B1 (en) * 1997-06-23 2001-01-09 Harman International Industries, Inc. Steering of monaural sources of sound using head related transfer functions
US6307941B1 (en) * 1997-07-15 2001-10-23 Desper Products, Inc. System and method for localization of virtual sound
EP0932325B1 (en) * 1998-01-23 2005-04-27 Onkyo Corporation Apparatus and method for localizing sound image
ATE501606T1 (de) * 1998-03-25 2011-03-15 Dolby Lab Licensing Corp Verfahren und vorrichtung zur verarbeitung von audiosignalen
AUPP271598A0 (en) * 1998-03-31 1998-04-23 Lake Dsp Pty Limited Headtracked processing for headtracked playback of audio signals
US6175489B1 (en) * 1998-06-04 2001-01-16 Compaq Computer Corporation Onboard speaker system for portable computers which maximizes broad spatial impression
GB2343347B (en) * 1998-06-20 2002-12-31 Central Research Lab Ltd A method of synthesising an audio signal
JP2000037000A (ja) * 1998-07-17 2000-02-02 Sanyo Electric Co Ltd サラウンド回路
JP3514639B2 (ja) * 1998-09-30 2004-03-31 株式会社アーニス・サウンド・テクノロジーズ ヘッドホンによる再生音聴取における音像頭外定位方法、及び、そのための装置
GB2342830B (en) * 1998-10-15 2002-10-30 Central Research Lab Ltd A method of synthesising a three dimensional sound-field
US6574339B1 (en) * 1998-10-20 2003-06-03 Samsung Electronics Co., Ltd. Three-dimensional sound reproducing apparatus for multiple listeners and method thereof
JP4023036B2 (ja) * 1999-07-06 2007-12-19 松下電器産業株式会社 車載用音響システム
US6175631B1 (en) * 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
US6804565B2 (en) * 2001-05-07 2004-10-12 Harman International Industries, Incorporated Data-driven software architecture for digital sound processing and equalization
US7447321B2 (en) * 2001-05-07 2008-11-04 Harman International Industries, Incorporated Sound processing system for configuration of audio signals in a vehicle
ITMI20011766A1 (it) * 2001-08-10 2003-02-10 A & G Soluzioni Digitali S R L Dispositivo e metodo per la simulazione della presenza di una o piu' sorgenti di suoni in posizioni virtuali nello spazio acustico a tre dim
GB0123493D0 (en) * 2001-09-28 2001-11-21 Adaptive Audio Ltd Sound reproduction systems
JP4427937B2 (ja) * 2001-10-05 2010-03-10 オンキヨー株式会社 音響信号処理回路および音響再生装置
JP3521900B2 (ja) * 2002-02-04 2004-04-26 ヤマハ株式会社 バーチャルスピーカアンプ
JP2004172786A (ja) * 2002-11-19 2004-06-17 Sony Corp オーディオ信号の再生方法および再生装置
JP3821229B2 (ja) * 2002-12-09 2006-09-13 ソニー株式会社 オーディオ信号の再生方法および再生装置
KR20040061247A (ko) * 2002-12-30 2004-07-07 블루텍 주식회사 반사형 서라운드 스피커 일체형 프론트 스피커가 채용된스피커 시스템
US7653203B2 (en) * 2004-01-13 2010-01-26 Bose Corporation Vehicle audio system surround modes
KR101118214B1 (ko) * 2004-09-21 2012-03-16 삼성전자주식회사 청취 위치를 고려한 2채널 가상 음향 재생 방법 및 장치
CN1937854A (zh) * 2005-09-22 2007-03-28 三星电子株式会社 用于再现双声道虚拟声音的装置和方法
KR100739776B1 (ko) 2005-09-22 2007-07-13 삼성전자주식회사 입체 음향 생성 방법 및 장치
US7941189B2 (en) * 2007-02-07 2011-05-10 Denso Corporation Communicating road noise control system, in-vehicle road noise controller, and server
US20090086982A1 (en) * 2007-09-28 2009-04-02 Qualcomm Incorporated Crosstalk cancellation for closely spaced speakers
US20110010269A1 (en) * 2009-07-07 2011-01-13 Ballard Claudio R Vehicle audio system for producing synthetic engine sound

Also Published As

Publication number Publication date
WO2011044063A2 (en) 2011-04-14
CA2773812C (en) 2016-11-08
CA2773812A1 (en) 2011-04-14
CN102696244A (zh) 2012-09-26
WO2011044063A3 (en) 2011-10-06
EP2486736A2 (en) 2012-08-15
US9100766B2 (en) 2015-08-04
KR101386360B1 (ko) 2014-04-16
CN104618848A (zh) 2015-05-13
CN104618848B (zh) 2017-07-21
CN102696244B (zh) 2015-01-07
US20150222994A1 (en) 2015-08-06
EP2486736B1 (en) 2022-04-13
CA2941646A1 (en) 2011-04-14
US9888319B2 (en) 2018-02-06
CA2941646C (en) 2019-09-10
US20110081032A1 (en) 2011-04-07
KR20120062877A (ko) 2012-06-14
JP5535325B2 (ja) 2014-07-02
JP2013507047A (ja) 2013-02-28

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