GB2592630A - Sound field microphones - Google Patents

Sound field microphones Download PDF

Info

Publication number
GB2592630A
GB2592630A GB2003141.5A GB202003141A GB2592630A GB 2592630 A GB2592630 A GB 2592630A GB 202003141 A GB202003141 A GB 202003141A GB 2592630 A GB2592630 A GB 2592630A
Authority
GB
United Kingdom
Prior art keywords
microphone
sound
signal
signals
field signal
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.)
Withdrawn
Application number
GB2003141.5A
Other languages
English (en)
Other versions
GB202003141D0 (en
Inventor
Solvang Audun
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
Priority to GB2003141.5A priority Critical patent/GB2592630A/en
Publication of GB202003141D0 publication Critical patent/GB202003141D0/en
Priority to PCT/NO2021/050057 priority patent/WO2021177838A1/en
Priority to EP21715342.8A priority patent/EP4115626A1/en
Priority to CA3169266A priority patent/CA3169266A1/en
Priority to JP2022552506A priority patent/JP7751592B2/ja
Priority to US17/802,376 priority patent/US12363490B2/en
Publication of GB2592630A publication Critical patent/GB2592630A/en
Withdrawn legal-status Critical Current

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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • 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
    • 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)
GB2003141.5A 2020-03-04 2020-03-04 Sound field microphones Withdrawn GB2592630A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2003141.5A GB2592630A (en) 2020-03-04 2020-03-04 Sound field microphones
PCT/NO2021/050057 WO2021177838A1 (en) 2020-03-04 2021-03-04 Sound field microphones
EP21715342.8A EP4115626A1 (en) 2020-03-04 2021-03-04 Sound field microphones
CA3169266A CA3169266A1 (en) 2020-03-04 2021-03-04 Sound field microphones
JP2022552506A JP7751592B2 (ja) 2020-03-04 2021-03-04 音場マイクロホン
US17/802,376 US12363490B2 (en) 2020-03-04 2021-03-04 Sound field microphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2003141.5A GB2592630A (en) 2020-03-04 2020-03-04 Sound field microphones

Publications (2)

Publication Number Publication Date
GB202003141D0 GB202003141D0 (en) 2020-04-15
GB2592630A true GB2592630A (en) 2021-09-08

Family

ID=70278552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2003141.5A Withdrawn GB2592630A (en) 2020-03-04 2020-03-04 Sound field microphones

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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050080616A1 (en) * 2001-07-19 2005-04-14 Johahn Leung Recording a three dimensional auditory scene and reproducing it for the individual listener
US20050259832A1 (en) * 2004-05-18 2005-11-24 Kenji Nakano Sound pickup method and apparatus, sound pickup and reproduction method, and sound reproduction apparatus
US20170311080A1 (en) * 2015-10-30 2017-10-26 Essential Products, Inc. Microphone array for generating virtual sound field
US20190200156A1 (en) * 2017-12-21 2019-06-27 Verizon Patent And Licensing Inc. Methods and Systems for Simulating Microphone Capture Within a Capture Zone of a Real-World Scene

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001252913A1 (en) * 2000-03-17 2001-10-03 The Johns-Hopkins University Phased array surveillance system
DE10026078C1 (de) * 2000-05-25 2001-11-08 Siemens Ag Richtmikrofonanordnung und Verfahren zur Signalverarbeitung in einer Richtmikrofonanordnung
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
JP6703525B2 (ja) * 2014-09-05 2020-06-03 インターデジタル シーイー パテント ホールディングス 音源を強調するための方法及び機器
US9794721B2 (en) 2015-01-30 2017-10-17 Dts, Inc. System and method for capturing, encoding, distributing, and decoding immersive audio
US9712936B2 (en) * 2015-02-03 2017-07-18 Qualcomm Incorporated Coding higher-order ambisonic audio data with motion stabilization
GB2540175A (en) * 2015-07-08 2017-01-11 Nokia Technologies Oy Spatial audio processing apparatus
US10531220B2 (en) * 2016-12-05 2020-01-07 Magic Leap, Inc. Distributed audio capturing techniques for virtual reality (VR), augmented reality (AR), and mixed reality (MR) systems
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050080616A1 (en) * 2001-07-19 2005-04-14 Johahn Leung Recording a three dimensional auditory scene and reproducing it for the individual listener
US20050259832A1 (en) * 2004-05-18 2005-11-24 Kenji Nakano Sound pickup method and apparatus, sound pickup and reproduction method, and sound reproduction apparatus
US20170311080A1 (en) * 2015-10-30 2017-10-26 Essential Products, Inc. Microphone array for generating virtual sound field
US20190200156A1 (en) * 2017-12-21 2019-06-27 Verizon Patent And Licensing Inc. Methods and Systems for Simulating Microphone Capture Within a Capture Zone of a Real-World Scene

Also Published As

Publication number Publication date
US12363490B2 (en) 2025-07-15
US20230156419A1 (en) 2023-05-18
GB202003141D0 (en) 2020-04-15
EP4115626A1 (en) 2023-01-11
JP7751592B2 (ja) 2025-10-08
WO2021177838A1 (en) 2021-09-10
CA3169266A1 (en) 2021-09-10
JP2023516057A (ja) 2023-04-17

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)