JP7751592B2 - 音場マイクロホン - Google Patents

音場マイクロホン

Info

Publication number
JP7751592B2
JP7751592B2 JP2022552506A JP2022552506A JP7751592B2 JP 7751592 B2 JP7751592 B2 JP 7751592B2 JP 2022552506 A JP2022552506 A JP 2022552506A JP 2022552506 A JP2022552506 A JP 2022552506A JP 7751592 B2 JP7751592 B2 JP 7751592B2
Authority
JP
Japan
Prior art keywords
microphone
signal
reference signal
signals
sound field
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2022552506A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2021177838A5 (https=
JP2023516057A (ja
JP2023516057A5 (https=
Inventor
オードゥン ソルヴァン，
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.)
Nomono AS
Original Assignee
Nomono AS
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 Nomono AS filed Critical Nomono AS
Publication of JP2023516057A publication Critical patent/JP2023516057A/ja
Publication of JPWO2021177838A5 publication Critical patent/JPWO2021177838A5/ja
Publication of JP2023516057A5 publication Critical patent/JP2023516057A5/ja
Application granted granted Critical
Publication of JP7751592B2 publication Critical patent/JP7751592B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • 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
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transmitters (AREA)
JP2022552506A 2020-03-04 2021-03-04 音場マイクロホン Active JP7751592B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2003141.5A GB2592630A (en) 2020-03-04 2020-03-04 Sound field microphones
GB2003141.5 2020-03-04
PCT/NO2021/050057 WO2021177838A1 (en) 2020-03-04 2021-03-04 Sound field microphones

Publications (4)

Publication Number Publication Date
JP2023516057A JP2023516057A (ja) 2023-04-17
JPWO2021177838A5 JPWO2021177838A5 (https=) 2024-03-12
JP2023516057A5 JP2023516057A5 (https=) 2024-03-12
JP7751592B2 true JP7751592B2 (ja) 2025-10-08

Family

ID=70278552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022552506A Active JP7751592B2 (ja) 2020-03-04 2021-03-04 音場マイクロホン

Country Status (6)

Country Link
US (1) US12363490B2 (https=)
EP (1) EP4115626A1 (https=)
JP (1) JP7751592B2 (https=)
CA (1) CA3169266A1 (https=)
GB (1) GB2592630A (https=)
WO (1) WO2021177838A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590906A (en) * 2019-12-19 2021-07-14 Nomono As Wireless microphone with local storage
CN112256645A (zh) * 2020-10-20 2021-01-22 北京字节跳动网络技术有限公司 数据处理的方法、装置、终端及存储介质
US11671734B2 (en) * 2021-02-23 2023-06-06 Freedman Electronics Pty Ltd Wireless microphone system and methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071687A2 (en) 2000-03-17 2001-09-27 The Johns Hopkins University Phased array surveillance system
JP2017530396A (ja) 2014-09-05 2017-10-12 トムソン ライセンシングＴｈｏｍｓｏｎ Ｌｉｃｅｎｓｉｎｇ 音源を強調するための方法及び機器
US20180098174A1 (en) 2015-01-30 2018-04-05 Dts, Inc. System and method for capturing, encoding, distributing, and decoding immersive audio
JP2018511070A (ja) 2015-02-03 2018-04-19 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 動き安定化を用いた高次アンビソニックオーディオデータのコード化
US20180206039A1 (en) 2015-07-08 2018-07-19 Nokia Technologies Oy Capturing Sound
JP2020501428A (ja) 2016-12-05 2020-01-16 マジック リープ， インコーポレイテッドＭａｇｉｃ Ｌｅａｐ，Ｉｎｃ． 仮想現実（ｖｒ）、拡張現実（ａｒ）、および複合現実（ｍｒ）システムのための分散型オーディオ捕捉技法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10026078C1 (de) * 2000-05-25 2001-11-08 Siemens Ag Richtmikrofonanordnung und Verfahren zur Signalverarbeitung in einer Richtmikrofonanordnung
AUPR647501A0 (en) * 2001-07-19 2001-08-09 Vast Audio Pty Ltd Recording a three dimensional auditory scene and reproducing it for the individual listener
JP2005333211A (ja) * 2004-05-18 2005-12-02 Sony Corp 音響収録方法、音響収録再生方法、音響収録装置および音響再生装置
US9241228B2 (en) * 2011-12-29 2016-01-19 Stmicroelectronics Asia Pacific Pte. Ltd. Adaptive self-calibration of small microphone array by soundfield approximation and frequency domain magnitude equalization
US9466302B2 (en) * 2013-09-10 2016-10-11 Qualcomm Incorporated Coding of spherical harmonic coefficients
US10206040B2 (en) * 2015-10-30 2019-02-12 Essential Products, Inc. Microphone array for generating virtual sound field
US10609502B2 (en) * 2017-12-21 2020-03-31 Verizon Patent And Licensing Inc. Methods and systems for simulating microphone capture within a capture zone of a real-world scene
CN108616790B (zh) * 2018-04-24 2021-01-26 京东方科技集团股份有限公司 一种拾音放音电路和系统、拾音放音切换方法
US10757528B1 (en) * 2019-10-11 2020-08-25 Verizon Patent And Licensing Inc. Methods and systems for simulating spatially-varying acoustics of an extended reality world

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071687A2 (en) 2000-03-17 2001-09-27 The Johns Hopkins University Phased array surveillance system
JP2017530396A (ja) 2014-09-05 2017-10-12 トムソン ライセンシングＴｈｏｍｓｏｎ Ｌｉｃｅｎｓｉｎｇ 音源を強調するための方法及び機器
US20180098174A1 (en) 2015-01-30 2018-04-05 Dts, Inc. System and method for capturing, encoding, distributing, and decoding immersive audio
JP2018511070A (ja) 2015-02-03 2018-04-19 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 動き安定化を用いた高次アンビソニックオーディオデータのコード化
US20180206039A1 (en) 2015-07-08 2018-07-19 Nokia Technologies Oy Capturing Sound
JP2020501428A (ja) 2016-12-05 2020-01-16 マジック リープ， インコーポレイテッドＭａｇｉｃ Ｌｅａｐ，Ｉｎｃ． 仮想現実（ｖｒ）、拡張現実（ａｒ）、および複合現実（ｍｒ）システムのための分散型オーディオ捕捉技法

Also Published As

Publication number Publication date
US12363490B2 (en) 2025-07-15
GB2592630A (en) 2021-09-08
US20230156419A1 (en) 2023-05-18
GB202003141D0 (en) 2020-04-15
EP4115626A1 (en) 2023-01-11
WO2021177838A1 (en) 2021-09-10
CA3169266A1 (en) 2021-09-10
JP2023516057A (ja) 2023-04-17

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