JP2008516539A5 - - Google Patents

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JP2008516539A5
JP2008516539A5 JP2007535948A JP2007535948A JP2008516539A5 JP 2008516539 A5 JP2008516539 A5 JP 2008516539A5 JP 2007535948 A JP2007535948 A JP 2007535948A JP 2007535948 A JP2007535948 A JP 2007535948A JP 2008516539 A5 JP2008516539 A5 JP 2008516539A5
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signal
hrtf
pair
virtual speaker
filter
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JP4986857B2 (ja
JP2008516539A (ja
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JP2007535948A 2004-10-14 2005-10-10 パンされたステレオオーディオコンテンツについての改善された頭部伝達関数 Expired - Lifetime JP4986857B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/965,130 2004-10-14
US10/965,130 US7634092B2 (en) 2004-10-14 2004-10-14 Head related transfer functions for panned stereo audio content
PCT/AU2005/001568 WO2006039748A1 (en) 2004-10-14 2005-10-10 Improved head related transfer functions for panned stereo audio content

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JP2012009561A Division JP2012120219A (ja) 2004-10-14 2012-01-20 パンされたステレオオーディオコンテンツについての改善された頭部伝達関数

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JP2008516539A JP2008516539A (ja) 2008-05-15
JP2008516539A5 true JP2008516539A5 (enExample) 2008-11-27
JP4986857B2 JP4986857B2 (ja) 2012-07-25

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JP2012009561A Pending JP2012120219A (ja) 2004-10-14 2012-01-20 パンされたステレオオーディオコンテンツについての改善された頭部伝達関数

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US (2) US7634092B2 (enExample)
EP (1) EP1800518B1 (enExample)
JP (2) JP4986857B2 (enExample)
KR (2) KR20120094045A (enExample)
CN (1) CN101040565B (enExample)
AU (1) AU2005294113B2 (enExample)
BR (1) BRPI0516527B1 (enExample)
CA (1) CA2579465C (enExample)
IL (1) IL181902A (enExample)
MX (1) MX2007004329A (enExample)
MY (1) MY147141A (enExample)
TW (1) TWI397325B (enExample)
WO (1) WO2006039748A1 (enExample)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7242782B1 (en) * 1998-07-31 2007-07-10 Onkyo Kk Audio signal processing circuit
US11106425B2 (en) 2003-07-28 2021-08-31 Sonos, Inc. Synchronizing operations among a plurality of independently clocked digital data processing devices
US11106424B2 (en) 2003-07-28 2021-08-31 Sonos, Inc. Synchronizing operations among a plurality of independently clocked digital data processing devices
US8234395B2 (en) 2003-07-28 2012-07-31 Sonos, Inc. System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
US8020023B2 (en) 2003-07-28 2011-09-13 Sonos, Inc. Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices without a voltage controlled crystal oscillator
US11294618B2 (en) 2003-07-28 2022-04-05 Sonos, Inc. Media player system
US8290603B1 (en) 2004-06-05 2012-10-16 Sonos, Inc. User interfaces for controlling and manipulating groupings in a multi-zone media system
US11650784B2 (en) 2003-07-28 2023-05-16 Sonos, Inc. Adjusting volume levels
US9977561B2 (en) 2004-04-01 2018-05-22 Sonos, Inc. Systems, methods, apparatus, and articles of manufacture to provide guest access
US8326951B1 (en) 2004-06-05 2012-12-04 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
US8868698B2 (en) 2004-06-05 2014-10-21 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
US7634092B2 (en) * 2004-10-14 2009-12-15 Dolby Laboratories Licensing Corporation Head related transfer functions for panned stereo audio content
JP2006203850A (ja) * 2004-12-24 2006-08-03 Matsushita Electric Ind Co Ltd 音像定位装置
JP4988717B2 (ja) 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
US8577686B2 (en) * 2005-05-26 2013-11-05 Lg Electronics Inc. Method and apparatus for decoding an audio signal
JP4821250B2 (ja) * 2005-10-11 2011-11-24 ヤマハ株式会社 音像定位装置
KR100739798B1 (ko) * 2005-12-22 2007-07-13 삼성전자주식회사 청취 위치를 고려한 2채널 입체음향 재생 방법 및 장치
JP4695197B2 (ja) * 2006-01-19 2011-06-08 エルジー エレクトロニクス インコーポレイティド メディア信号の処理方法及び装置
US8296156B2 (en) * 2006-02-07 2012-10-23 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8619998B2 (en) * 2006-08-07 2013-12-31 Creative Technology Ltd Spatial audio enhancement processing method and apparatus
JP4914124B2 (ja) * 2006-06-14 2012-04-11 パナソニック株式会社 音像制御装置及び音像制御方法
US9202509B2 (en) 2006-09-12 2015-12-01 Sonos, Inc. Controlling and grouping in a multi-zone media system
US8483853B1 (en) 2006-09-12 2013-07-09 Sonos, Inc. Controlling and manipulating groupings in a multi-zone media system
US12167216B2 (en) 2006-09-12 2024-12-10 Sonos, Inc. Playback device pairing
US8788080B1 (en) 2006-09-12 2014-07-22 Sonos, Inc. Multi-channel pairing in a media system
US8229143B2 (en) * 2007-05-07 2012-07-24 Sunil Bharitkar Stereo expansion with binaural modeling
US9092408B2 (en) * 2007-08-03 2015-07-28 Sap Se Data listeners for type dependency processing
EP2206364B1 (en) * 2007-10-03 2017-12-13 Koninklijke Philips N.V. A method for headphone reproduction, a headphone reproduction system, a computer program product
US9031242B2 (en) * 2007-11-06 2015-05-12 Starkey Laboratories, Inc. Simulated surround sound hearing aid fitting system
US7966393B2 (en) * 2008-02-18 2011-06-21 Clear Channel Management Services, Inc. System and method for media stream monitoring
JP5042083B2 (ja) * 2008-03-17 2012-10-03 三菱電機株式会社 能動騒音制御方法および能動騒音制御装置
US8705751B2 (en) * 2008-06-02 2014-04-22 Starkey Laboratories, Inc. Compression and mixing for hearing assistance devices
US9485589B2 (en) 2008-06-02 2016-11-01 Starkey Laboratories, Inc. Enhanced dynamics processing of streaming audio by source separation and remixing
US9185500B2 (en) 2008-06-02 2015-11-10 Starkey Laboratories, Inc. Compression of spaced sources for hearing assistance devices
TWI475896B (zh) * 2008-09-25 2015-03-01 Dolby Lab Licensing Corp 單音相容性及揚聲器相容性之立體聲濾波器
US9247369B2 (en) * 2008-10-06 2016-01-26 Creative Technology Ltd Method for enlarging a location with optimal three-dimensional audio perception
WO2010048157A1 (en) * 2008-10-20 2010-04-29 Genaudio, Inc. Audio spatialization and environment simulation
KR101595995B1 (ko) * 2008-12-22 2016-02-22 코닌클리케 필립스 엔.브이. 송신 효과 처리에 의한 출력 신호의 생성
GB2467534B (en) * 2009-02-04 2014-12-24 Richard Furse Sound system
US8000485B2 (en) * 2009-06-01 2011-08-16 Dts, Inc. Virtual audio processing for loudspeaker or headphone playback
JP5397131B2 (ja) * 2009-09-29 2014-01-22 沖電気工業株式会社 音源方向推定装置及びプログラム
EP2373055B1 (de) * 2010-03-16 2017-11-01 Deutsche Telekom AG Kopfhörer-Vorrichtung zur Wiedergabe binauraler räumlicher Audiosignale und damit ausgestattetes System
CN101835072B (zh) * 2010-04-06 2011-11-23 瑞声声学科技(深圳)有限公司 虚拟环绕声处理方法
US9578419B1 (en) * 2010-09-01 2017-02-21 Jonathan S. Abel Method and apparatus for estimating spatial content of soundfield at desired location
CN103181191B (zh) * 2010-10-20 2016-03-09 Dts有限责任公司 立体声像加宽系统
US11265652B2 (en) 2011-01-25 2022-03-01 Sonos, Inc. Playback device pairing
US11429343B2 (en) 2011-01-25 2022-08-30 Sonos, Inc. Stereo playback configuration and control
CN102438199A (zh) * 2011-09-06 2012-05-02 深圳东原电子有限公司 一种虚拟环绕声扩大听音区的方法
US9344292B2 (en) 2011-12-30 2016-05-17 Sonos, Inc. Systems and methods for player setup room names
US9602927B2 (en) * 2012-02-13 2017-03-21 Conexant Systems, Inc. Speaker and room virtualization using headphones
US9510124B2 (en) * 2012-03-14 2016-11-29 Harman International Industries, Incorporated Parametric binaural headphone rendering
EP2891336B1 (en) * 2012-08-31 2017-10-04 Dolby Laboratories Licensing Corporation Virtual rendering of object-based audio
US9380388B2 (en) 2012-09-28 2016-06-28 Qualcomm Incorporated Channel crosstalk removal
WO2014085510A1 (en) 2012-11-30 2014-06-05 Dts, Inc. Method and apparatus for personalized audio virtualization
US9794715B2 (en) * 2013-03-13 2017-10-17 Dts Llc System and methods for processing stereo audio content
CN104075746B (zh) * 2013-03-29 2016-09-07 上海航空电器有限公司 具有方位信息的虚拟声源定位验证装置的验证方法
US9426300B2 (en) 2013-09-27 2016-08-23 Dolby Laboratories Licensing Corporation Matching reverberation in teleconferencing environments
US9473871B1 (en) * 2014-01-09 2016-10-18 Marvell International Ltd. Systems and methods for audio management
KR102121748B1 (ko) 2014-02-25 2020-06-11 삼성전자주식회사 입체 사운드를 재생하는 방법 및 장치
EP3132617B1 (en) 2014-08-13 2018-10-17 Huawei Technologies Co. Ltd. An audio signal processing apparatus
JP6401576B2 (ja) * 2014-10-24 2018-10-10 株式会社河合楽器製作所 効果付与装置
EP4043670A1 (en) 2014-11-30 2022-08-17 Dolby Laboratories Licensing Corporation Social media linked large format theater design
US9551161B2 (en) 2014-11-30 2017-01-24 Dolby Laboratories Licensing Corporation Theater entrance
US9743187B2 (en) * 2014-12-19 2017-08-22 Lee F. Bender Digital audio processing systems and methods
HUE056176T2 (hu) 2015-02-12 2022-02-28 Dolby Laboratories Licensing Corp Fejhallgató virtualizálás
US10248376B2 (en) 2015-06-11 2019-04-02 Sonos, Inc. Multiple groupings in a playback system
GB2544458B (en) * 2015-10-08 2019-10-02 Facebook Inc Binaural synthesis
CN105246001B (zh) * 2015-11-03 2018-08-28 中国传媒大学 双耳录音耳机重放系统及方法
US10303422B1 (en) 2016-01-05 2019-05-28 Sonos, Inc. Multiple-device setup
US10225657B2 (en) 2016-01-18 2019-03-05 Boomcloud 360, Inc. Subband spatial and crosstalk cancellation for audio reproduction
EP4307718A3 (en) * 2016-01-19 2024-04-10 Boomcloud 360, Inc. Audio enhancement for head-mounted speakers
DE202017102729U1 (de) * 2016-02-18 2017-06-27 Google Inc. Signalverarbeitungssysteme zur Wiedergabe von Audiodaten auf virtuellen Lautsprecher-Arrays
US10142755B2 (en) 2016-02-18 2018-11-27 Google Llc Signal processing methods and systems for rendering audio on virtual loudspeaker arrays
JP6786834B2 (ja) * 2016-03-23 2020-11-18 ヤマハ株式会社 音響処理装置、プログラムおよび音響処理方法
EP3453190A4 (en) * 2016-05-06 2020-01-15 DTS, Inc. SYSTEMS FOR IMMERSIVE AUDIO PLAYBACK
CN107493543B (zh) * 2016-06-12 2021-03-09 深圳奥尼电子股份有限公司 用于耳机耳塞的3d音效处理电路及其处理方法
WO2017216629A1 (en) * 2016-06-14 2017-12-21 Orcam Technologies Ltd. Systems and methods for directing audio output of a wearable apparatus
US10482144B2 (en) 2016-08-01 2019-11-19 Facebook, Inc. Systems and methods to manage media content items
US10712997B2 (en) 2016-10-17 2020-07-14 Sonos, Inc. Room association based on name
WO2018190875A1 (en) * 2017-04-14 2018-10-18 Hewlett-Packard Development Company, L.P. Crosstalk cancellation for speaker-based spatial rendering
WO2018199942A1 (en) * 2017-04-26 2018-11-01 Hewlett-Packard Development Company, L.P. Matrix decomposition of audio signal processing filters for spatial rendering
CN109036446B (zh) * 2017-06-08 2022-03-04 腾讯科技（深圳）有限公司 一种音频数据处理方法以及相关设备
WO2019055572A1 (en) * 2017-09-12 2019-03-21 The Regents Of The University Of California DEVICES AND METHODS FOR BINAURAL SPATIAL PROCESSING AND AUDIO SIGNAL PROJECTION
US10003905B1 (en) 2017-11-27 2018-06-19 Sony Corporation Personalized end user head-related transfer function (HRTV) finite impulse response (FIR) filter
FR3075443A1 (fr) * 2017-12-19 2019-06-21 Orange Traitement d'un signal monophonique dans un decodeur audio 3d restituant un contenu binaural
JPWO2019146254A1 (ja) * 2018-01-29 2021-01-14 ソニー株式会社 音響処理装置、音響処理方法及びプログラム
US10375506B1 (en) * 2018-02-28 2019-08-06 Google Llc Spatial audio to enable safe headphone use during exercise and commuting
US10142760B1 (en) 2018-03-14 2018-11-27 Sony Corporation Audio processing mechanism with personalized frequency response filter and personalized head-related transfer function (HRTF)
US10764704B2 (en) 2018-03-22 2020-09-01 Boomcloud 360, Inc. Multi-channel subband spatial processing for loudspeakers
CN111937414A (zh) * 2018-04-10 2020-11-13 索尼公司 音频处理装置、音频处理方法和程序
US10602292B2 (en) * 2018-06-14 2020-03-24 Magic Leap, Inc. Methods and systems for audio signal filtering
CN112567768B (zh) * 2018-06-18 2022-11-15 奇跃公司 用于交互式音频环境的空间音频
WO2020023482A1 (en) 2018-07-23 2020-01-30 Dolby Laboratories Licensing Corporation Rendering binaural audio over multiple near field transducers
CN110856095B (zh) * 2018-08-20 2021-11-19 华为技术有限公司 音频处理方法和装置
CN115866505A (zh) * 2018-08-20 2023-03-28 华为技术有限公司 音频处理方法和装置
US10856097B2 (en) 2018-09-27 2020-12-01 Sony Corporation Generating personalized end user head-related transfer function (HRTV) using panoramic images of ear
US11113092B2 (en) 2019-02-08 2021-09-07 Sony Corporation Global HRTF repository
CN112956210B (zh) * 2019-02-15 2022-09-02 华为技术有限公司 基于均衡滤波器的音频信号处理方法及装置
US11625222B2 (en) * 2019-05-07 2023-04-11 Apple Inc. Augmenting control sound with spatial audio cues
US11451907B2 (en) 2019-05-29 2022-09-20 Sony Corporation Techniques combining plural head-related transfer function (HRTF) spheres to place audio objects
US11347832B2 (en) 2019-06-13 2022-05-31 Sony Corporation Head related transfer function (HRTF) as biometric authentication
US10841728B1 (en) 2019-10-10 2020-11-17 Boomcloud 360, Inc. Multi-channel crosstalk processing
US11146908B2 (en) 2019-10-24 2021-10-12 Sony Corporation Generating personalized end user head-related transfer function (HRTF) from generic HRTF
US11070930B2 (en) 2019-11-12 2021-07-20 Sony Corporation Generating personalized end user room-related transfer function (RRTF)
CN111641899B (zh) 2020-06-09 2022-11-04 京东方科技集团股份有限公司 虚拟环绕声发声电路、平面音源装置及平面显示设备
WO2022010453A1 (en) * 2020-07-06 2022-01-13 Hewlett-Packard Development Company, L.P. Cancellation of spatial processing in headphones
CN111866546A (zh) * 2020-07-21 2020-10-30 山东超越数控电子股份有限公司 一种基于FFmpeg的网络音频选择源的实现方法
CN114584914B (zh) * 2020-11-30 2025-01-14 深圳市三诺数字科技有限公司 一种3d音效方法及装置
GB2603768B (en) * 2021-02-11 2024-09-18 Sony Interactive Entertainment Inc Transfer function modification system and method
CN113099359B (zh) * 2021-03-01 2022-10-14 深圳市悦尔声学有限公司 一种基于hrtf技术的高仿真声场重现的方法及其应用
CN113645531B (zh) * 2021-08-05 2024-04-16 高敬源 一种耳机虚拟空间声回放方法、装置、存储介质及耳机
CN115278474B (zh) * 2022-07-27 2025-07-15 歌尔科技有限公司 串声消除方法、装置、音频设备及计算机可读存储介质

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US411078A (en) * 1889-09-17 Rock-drilling machine
US3088997A (en) * 1960-12-29 1963-05-07 Columbia Broadcasting Syst Inc Stereophonic to binaural conversion apparatus
US3236949A (en) * 1962-11-19 1966-02-22 Bell Telephone Labor Inc Apparent sound source translator
US4893342A (en) * 1987-10-15 1990-01-09 Cooper Duane H Head diffraction compensated stereo system
US4910779A (en) * 1987-10-15 1990-03-20 Cooper Duane H Head diffraction compensated stereo system with optimal equalization
US5440639A (en) * 1992-10-14 1995-08-08 Yamaha Corporation Sound localization control apparatus
US5622172A (en) * 1995-09-29 1997-04-22 Siemens Medical Systems, Inc. Acoustic display system and method for ultrasonic imaging
US6091894A (en) * 1995-12-15 2000-07-18 Kabushiki Kaisha Kawai Gakki Seisakusho Virtual sound source positioning apparatus
US5742689A (en) * 1996-01-04 1998-04-21 Virtual Listening Systems, Inc. Method and device for processing a multichannel signal for use with a headphone
AU1527197A (en) 1996-01-04 1997-08-01 Virtual Listening Systems, Inc. Method and device for processing a multi-channel signal for use with a headphone
GB9603236D0 (en) * 1996-02-16 1996-04-17 Adaptive Audio Ltd Sound recording and reproduction systems
US6697491B1 (en) * 1996-07-19 2004-02-24 Harman International Industries, Incorporated 5-2-5 matrix encoder and decoder system
US6009178A (en) * 1996-09-16 1999-12-28 Aureal Semiconductor, Inc. Method and apparatus for crosstalk cancellation
US6421446B1 (en) * 1996-09-25 2002-07-16 Qsound Labs, Inc. Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevation
GB9622773D0 (en) 1996-11-01 1997-01-08 Central Research Lab Ltd Stereo sound expander
US6243476B1 (en) * 1997-06-18 2001-06-05 Massachusetts Institute Of Technology Method and apparatus for producing binaural audio for a moving listener
US6067361A (en) * 1997-07-16 2000-05-23 Sony Corporation Method and apparatus for two channels of sound having directional cues
EP1025743B1 (en) 1997-09-16 2013-06-19 Dolby Laboratories Licensing Corporation Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener
GB9726338D0 (en) * 1997-12-13 1998-02-11 Central Research Lab Ltd A method of processing an audio signal
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
US20020184128A1 (en) * 2001-01-11 2002-12-05 Matt Holtsinger System and method for providing music management and investment opportunities
IL141822A (en) * 2001-03-05 2007-02-11 Haim Levy A method and system for imitating a 3D audio environment
WO2003030051A1 (en) * 2001-09-30 2003-04-10 Realcontacts Ltd Connection service
KR101016975B1 (ko) * 2002-09-23 2011-02-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 미디어 시스템, 이 미디어 시스템에서 적어도 하나의 출력 신호를 생성하는 방법, 및 컴퓨터 판독 가능한 매체
AU2003260875A1 (en) 2002-09-23 2004-04-08 Koninklijke Philips Electronics N.V. Sound reproduction system, program and data carrier
US7634092B2 (en) * 2004-10-14 2009-12-15 Dolby Laboratories Licensing Corporation Head related transfer functions for panned stereo audio content

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