CN112470218B - 低频信道间相干性控制 - Google Patents

低频信道间相干性控制 Download PDF

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Publication number
CN112470218B
CN112470218B CN201980048976.7A CN201980048976A CN112470218B CN 112470218 B CN112470218 B CN 112470218B CN 201980048976 A CN201980048976 A CN 201980048976A CN 112470218 B CN112470218 B CN 112470218B
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CN
China
Prior art keywords
signal
pass filter
frequency
high frequency
low
Prior art date
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Active
Application number
CN201980048976.7A
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English (en)
Chinese (zh)
Other versions
CN112470218A (zh
Inventor
R·S·奥德弗雷
J-M·约特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magic Leap Inc
Original Assignee
Magic Leap Inc
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 Magic Leap Inc filed Critical Magic Leap Inc
Priority to CN202410817359.1A priority Critical patent/CN118574070A/zh
Publication of CN112470218A publication Critical patent/CN112470218A/zh
Application granted granted Critical
Publication of CN112470218B publication Critical patent/CN112470218B/zh
Active legal-status Critical Current
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Classifications

    • 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
    • H04S7/307—Frequency adjustment, e.g. tone control
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/08—Arrangements for producing a reverberation or echo sound
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/08—Arrangements for producing a reverberation or echo sound
    • G10K15/12—Arrangements for producing a reverberation or echo sound using electronic time-delay networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/04—Circuits for transducers for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • 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
    • H04S1/005—For headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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)
  • Multimedia (AREA)
  • Stereophonic System (AREA)
  • User Interface Of Digital Computer (AREA)
CN201980048976.7A 2018-06-12 2019-06-12 低频信道间相干性控制 Active CN112470218B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410817359.1A CN118574070A (zh) 2018-06-12 2019-06-12 低频信道间相干性控制

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862684086P 2018-06-12 2018-06-12
US62/684,086 2018-06-12
PCT/US2019/036859 WO2020076377A2 (en) 2018-06-12 2019-06-12 Low-frequency interchannel coherence control

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202410817359.1A Division CN118574070A (zh) 2018-06-12 2019-06-12 低频信道间相干性控制

Publications (2)

Publication Number Publication Date
CN112470218A CN112470218A (zh) 2021-03-09
CN112470218B true CN112470218B (zh) 2024-06-21

Family

ID=68764421

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201980048976.7A Active CN112470218B (zh) 2018-06-12 2019-06-12 低频信道间相干性控制
CN202410817359.1A Pending CN118574070A (zh) 2018-06-12 2019-06-12 低频信道间相干性控制

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202410817359.1A Pending CN118574070A (zh) 2018-06-12 2019-06-12 低频信道间相干性控制

Country Status (5)

Country Link
US (2) US10841727B2 (https=)
EP (1) EP3807877A4 (https=)
JP (2) JP7402185B2 (https=)
CN (2) CN112470218B (https=)
WO (1) WO2020076377A2 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10841727B2 (en) 2018-06-12 2020-11-17 Magic Leap, Inc. Low-frequency interchannel coherence control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933677A (zh) * 2005-09-12 2007-03-21 索尼株式会社 噪音减小装置、方法以及用于电子设备的拾音器装置
CN108781331A (zh) * 2016-01-19 2018-11-09 云加速360公司 用于头戴式扬声器的音频增强

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US5420929A (en) * 1992-05-26 1995-05-30 Ford Motor Company Signal processor for sound image enhancement
JPH10327494A (ja) * 1997-05-22 1998-12-08 Matsushita Electric Ind Co Ltd マイクロホン装置
JP2000069599A (ja) 1998-08-24 2000-03-03 Victor Co Of Japan Ltd 残響音生成装置及び方法
AUPQ938000A0 (en) * 2000-08-14 2000-09-07 Moorthy, Surya Method and system for recording and reproduction of binaural sound
JP2004040292A (ja) 2002-07-01 2004-02-05 Matsushita Electric Ind Co Ltd 低音再生回路
US7949141B2 (en) * 2003-11-12 2011-05-24 Dolby Laboratories Licensing Corporation Processing audio signals with head related transfer function filters and a reverberator
JP2005223714A (ja) * 2004-02-06 2005-08-18 Sony Corp 音響収音装置、音響収音方法、記録媒体
GB0419346D0 (en) 2004-09-01 2004-09-29 Smyth Stephen M F Method and apparatus for improved headphone virtualisation
JP2006303799A (ja) 2005-04-19 2006-11-02 Mitsubishi Electric Corp 音響信号再生装置
KR100739776B1 (ko) 2005-09-22 2007-07-13 삼성전자주식회사 입체 음향 생성 방법 및 장치
CN101946526B (zh) 2008-02-14 2013-01-02 杜比实验室特许公司 声音再现方法和系统以及立体声扩展方法
WO2009112980A1 (en) * 2008-03-14 2009-09-17 Koninklijke Philips Electronics N.V. Sound system and method of operation therefor
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
US8553897B2 (en) * 2009-06-09 2013-10-08 Dean Robert Gary Anderson Method and apparatus for directional acoustic fitting of hearing aids
CN103348686B (zh) * 2011-02-10 2016-04-13 杜比实验室特许公司 用于风检测和抑制的系统和方法
SG11201407255XA (en) 2012-05-29 2014-12-30 Creative Tech Ltd Stereo widening over arbitrarily-configured loudspeakers
US9326067B2 (en) * 2013-04-23 2016-04-26 Personics Holdings, Llc Multiplexing audio system and method
CN107835483B (zh) * 2014-01-03 2020-07-28 杜比实验室特许公司 响应于多通道音频通过使用至少一个反馈延迟网络产生双耳音频
EP3453190A4 (en) * 2016-05-06 2020-01-15 DTS, Inc. SYSTEMS FOR IMMERSIVE AUDIO PLAYBACK
JP6124203B1 (ja) 2016-05-13 2017-05-10 株式会社ボーダレス 音響信号処理装置及びそれを装備したヘルメット
US10841727B2 (en) 2018-06-12 2020-11-17 Magic Leap, Inc. Low-frequency interchannel coherence control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933677A (zh) * 2005-09-12 2007-03-21 索尼株式会社 噪音减小装置、方法以及用于电子设备的拾音器装置
CN108781331A (zh) * 2016-01-19 2018-11-09 云加速360公司 用于头戴式扬声器的音频增强

Also Published As

Publication number Publication date
WO2020076377A2 (en) 2020-04-16
JP7402185B2 (ja) 2023-12-20
US20210160650A1 (en) 2021-05-27
JP2023168544A (ja) 2023-11-24
EP3807877A4 (en) 2021-08-04
CN112470218A (zh) 2021-03-09
CN118574070A (zh) 2024-08-30
WO2020076377A3 (en) 2020-05-28
US11252528B2 (en) 2022-02-15
EP3807877A2 (en) 2021-04-21
US20190379997A1 (en) 2019-12-12
JP7507300B2 (ja) 2024-06-27
JP2021527353A (ja) 2021-10-11
US10841727B2 (en) 2020-11-17

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