JPS6216080B2 - - Google Patents

Info

Publication number
JPS6216080B2
JPS6216080B2 JP50085186A JP8518675A JPS6216080B2 JP S6216080 B2 JPS6216080 B2 JP S6216080B2 JP 50085186 A JP50085186 A JP 50085186A JP 8518675 A JP8518675 A JP 8518675A JP S6216080 B2 JPS6216080 B2 JP S6216080B2
Authority
JP
Japan
Prior art keywords
microphone
signal
output
microphones
spherical harmonic
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.)
Expired
Application number
JP50085186A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5132319A (en
Inventor
Gurahamu Kureibun Piitaa
Ansonii Jaazon Maikeru
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.)
NAT RES DEV
Original Assignee
NAT RES DEV
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 NAT RES DEV filed Critical NAT RES DEV
Publication of JPS5132319A publication Critical patent/JPS5132319A/ja
Publication of JPS6216080B2 publication Critical patent/JPS6216080B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Stereophonic Arrangements (AREA)
JP50085186A 1974-07-12 1975-07-11 Maikuroppon asenburi Granted JPS5132319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30977/74A GB1512514A (en) 1974-07-12 1974-07-12 Microphone assemblies

Publications (2)

Publication Number Publication Date
JPS5132319A JPS5132319A (en) 1976-03-18
JPS6216080B2 true JPS6216080B2 (en]) 1987-04-10

Family

ID=10316054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50085186A Granted JPS5132319A (en) 1974-07-12 1975-07-11 Maikuroppon asenburi

Country Status (6)

Country Link
US (1) US4042779A (en])
JP (1) JPS5132319A (en])
DE (1) DE2531161C2 (en])
FR (1) FR2278218A1 (en])
GB (1) GB1512514A (en])
NL (1) NL186058C (en])

Cited By (2)

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JP2007006474A (ja) * 2005-06-23 2007-01-11 Akg Acoustics Gmbh マイクロフォンのモデリング
JP2009509361A (ja) * 2005-06-23 2009-03-05 エーケージー アコースティックス ゲーエムベーハー 音源の位置の決定

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CA1091588A (en) * 1976-11-01 1980-12-16 William R. Wray Receiving system having a pre-selected directional rejection characteristic
DE8509965U1 (de) * 1985-04-03 1985-06-20 Woywod, Gerhard, 4330 Mülheim Elektroakustische Anordnung für richtungsorientiertes, räumliches Hören
US4888807A (en) * 1989-01-18 1989-12-19 Audio-Technica U.S., Inc. Variable pattern microphone system
DE4101933A1 (de) * 1991-01-21 1992-07-23 Schaller Werner Steuergeraet fuer richtmikrofonsignale zur erzeugung von virtuellen richtcharakteristiken mit einstellbarer hauptempfangsrichtung und einstellbarem buendelungsgrad zur anwendung in der audiotechnik und der akustischen messtechnik
US5377166A (en) * 1994-01-25 1994-12-27 Martin Marietta Corporation Polyhedral directional transducer array
US6041127A (en) * 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array
NZ502603A (en) * 2000-02-02 2002-09-27 Ind Res Ltd Multitransducer microphone arrays with signal processing for high resolution sound field recording
US20030147539A1 (en) * 2002-01-11 2003-08-07 Mh Acoustics, Llc, A Delaware Corporation Audio system based on at least second-order eigenbeams
US8942387B2 (en) * 2002-02-05 2015-01-27 Mh Acoustics Llc Noise-reducing directional microphone array
CA2374299A1 (en) * 2002-03-01 2003-09-01 Charles Whitman Fox Modular microphone array for surround sound recording
ITMI20020566A1 (it) * 2002-03-18 2003-09-18 Daniele Ramenzoni Dispositivo per captare movimenti anche piccoli nell'aria e nei fluidi adatto per applicazioni cibernetiche e di laboratorio come trasduttor
US8204247B2 (en) * 2003-01-10 2012-06-19 Mh Acoustics, Llc Position-independent microphone system
WO2005117483A1 (en) * 2004-05-25 2005-12-08 Huonlabs Pty Ltd Audio apparatus and method
US8090117B2 (en) * 2005-03-16 2012-01-03 James Cox Microphone array and digital signal processing system
FI20055261A0 (fi) 2005-05-27 2005-05-27 Midas Studios Avoin Yhtioe Akustisten muuttajien kokoonpano, järjestelmä ja menetelmä akustisten signaalien vastaanottamista tai toistamista varten
FI20055260A7 (fi) * 2005-05-27 2006-12-27 Oy Martin Kantola Consulting Ltd Laite, järjestelmä ja menetelmä akustisten signaalien vastaanottamista tai toistamista varten
ATE545286T1 (de) * 2005-06-23 2012-02-15 Akg Acoustics Gmbh Schallfeldmikrophon
EP1737271A1 (en) 2005-06-23 2006-12-27 AKG Acoustics GmbH Array microphone
JP4804095B2 (ja) * 2005-10-07 2011-10-26 パナソニック株式会社 マイクロホン装置
US8130977B2 (en) * 2005-12-27 2012-03-06 Polycom, Inc. Cluster of first-order microphones and method of operation for stereo input of videoconferencing system
GB0619825D0 (en) * 2006-10-06 2006-11-15 Craven Peter G Microphone array
GB0720473D0 (en) * 2007-10-19 2007-11-28 Univ Surrey Accoustic source separation
EP2208360B1 (en) * 2007-11-13 2011-04-27 AKG Acoustics GmbH Microphone arrangement comprising three pressure gradient transducers
DE602007012600D1 (de) 2007-11-13 2011-03-31 Akg Acoustics Gmbh Mikrofonanordnung, die zwei druckgradientenwandler aufweist
DE602007012599D1 (de) * 2007-11-13 2011-03-31 Akg Acoustics Gmbh Mikrofonanordnung
ATE518380T1 (de) * 2007-11-13 2011-08-15 Akg Acoustics Gmbh Verfahren zum synthetisieren eines mikrofonsignals
WO2009062211A1 (en) * 2007-11-13 2009-05-22 Akg Acoustics Gmbh Position determination of sound sources
DE102008004674A1 (de) 2007-12-17 2009-06-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufnahme mit variabler Richtcharakteristik
WO2009105793A1 (en) 2008-02-26 2009-09-03 Akg Acoustics Gmbh Transducer assembly
US20100131417A1 (en) * 2008-11-25 2010-05-27 Hank Risan Enhancing copyright revenue generation
JP5309953B2 (ja) 2008-12-17 2013-10-09 ヤマハ株式会社 収音装置
US20110035686A1 (en) * 2009-08-06 2011-02-10 Hank Risan Simulation of a media recording with entirely independent artistic authorship
ITUD20090183A1 (it) * 2009-10-14 2011-04-15 Advanced Ind Design In Acous Tic Srl Sonda per misurazioni subacquee vettoriali del campo sonoro
EP2448289A1 (en) 2010-10-28 2012-05-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for deriving a directional information and computer program product
EP2450880A1 (en) 2010-11-05 2012-05-09 Thomson Licensing Data structure for Higher Order Ambisonics audio data
EP2749044B1 (en) 2011-08-23 2015-05-27 Dolby Laboratories Licensing Corporation Method and system for generating a matrix-encoded two-channel audio signal
NL2007334C2 (en) 2011-09-02 2013-03-05 Munisense B V Device and method for measuring sound levels and direction or localisation of sound sources.
FR2998438A1 (fr) 2012-11-16 2014-05-23 France Telecom Acquisition de donnees sonores spatialisees
US8666090B1 (en) 2013-02-26 2014-03-04 Full Code Audio LLC Microphone modeling system and method
US9197962B2 (en) 2013-03-15 2015-11-24 Mh Acoustics Llc Polyhedral audio system based on at least second-order eigenbeams
EP2782094A1 (en) 2013-03-22 2014-09-24 Thomson Licensing Method and apparatus for enhancing directivity of a 1st order Ambisonics signal
US9338552B2 (en) 2014-05-09 2016-05-10 Trifield Ip, Llc Coinciding low and high frequency localization panning
US10492000B2 (en) 2016-04-08 2019-11-26 Google Llc Cylindrical microphone array for efficient recording of 3D sound fields
US10477304B2 (en) 2016-06-15 2019-11-12 Mh Acoustics, Llc Spatial encoding directional microphone array
WO2017218399A1 (en) 2016-06-15 2017-12-21 Mh Acoustics, Llc Spatial encoding directional microphone array
CN106210968B (zh) * 2016-08-29 2019-06-07 陈立康 一种全息立体拾音器
CN106358129B (zh) * 2016-08-29 2019-06-11 陈立康 一种全息立体扬声器
US9865274B1 (en) 2016-12-22 2018-01-09 Getgo, Inc. Ambisonic audio signal processing for bidirectional real-time communication
US10332530B2 (en) 2017-01-27 2019-06-25 Google Llc Coding of a soundfield representation
KR102448736B1 (ko) * 2017-07-14 2022-09-30 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 깊이-확장형 DirAC 기술 또는 기타 기술을 이용하여 증강된 음장 묘사 또는 수정된 음장 묘사를 생성하기 위한 개념
WO2019012133A1 (en) 2017-07-14 2019-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. CONCEPT OF GENERATING AN ENHANCED AUDIO FIELD DESCRIPTION OR A MODIFIED AUDIO FIELD DESCRIPTION USING A MULTILAYER DESCRIPTION
SG11202000330XA (en) 2017-07-14 2020-02-27 Fraunhofer Ges Forschung Concept for generating an enhanced sound field description or a modified sound field description using a multi-point sound field description
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
US10701481B2 (en) 2018-11-14 2020-06-30 Townsend Labs Inc Microphone sound isolation baffle and system
EP3991451A4 (en) 2019-08-28 2022-08-24 Orta Dogu Teknik Universitesi Spherically steerable vector differential microphone arrays
CN212660316U (zh) * 2019-09-30 2021-03-05 罗技欧洲公司 麦克风炭精盒组件
US12256201B2 (en) * 2020-10-13 2025-03-18 Ask Industries Societa' Per Azioni Microphone unit, microphone meta-array and network with microphone meta-array
US11696083B2 (en) 2020-10-21 2023-07-04 Mh Acoustics, Llc In-situ calibration of microphone arrays

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US2636943A (en) * 1951-02-26 1953-04-28 Pierre H Schaeffer Spatial music projecting device
US3290646A (en) * 1960-04-06 1966-12-06 Raytheon Co Sonar transducer
US3158695A (en) * 1960-07-05 1964-11-24 Ht Res Inst Stereophonic system
DE1148268B (de) * 1961-07-24 1963-05-09 Inst Rundfunktechnik G M B H Verfahren zur Erhoehung des Geraeusch-spannungsabstandes in polymikrophonen Mehrkanaluebertragungssystemen
US3360606A (en) * 1963-06-12 1967-12-26 Jetru Inc Stereophonic systems
JPS4929441B1 (en]) * 1970-02-27 1974-08-05
GB1369813A (en) * 1971-02-02 1974-10-09 Nat Res Dev Reproduction of sound
US3824342A (en) * 1972-05-09 1974-07-16 Rca Corp Omnidirectional sound field reproducing system
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007006474A (ja) * 2005-06-23 2007-01-11 Akg Acoustics Gmbh マイクロフォンのモデリング
JP2009509361A (ja) * 2005-06-23 2009-03-05 エーケージー アコースティックス ゲーエムベーハー 音源の位置の決定

Also Published As

Publication number Publication date
JPS5132319A (en) 1976-03-18
US4042779A (en) 1977-08-16
DE2531161A1 (de) 1976-01-22
GB1512514A (en) 1978-06-01
NL186058C (nl) 1990-09-03
FR2278218B1 (en]) 1982-10-29
DE2531161C2 (de) 1984-08-23
NL7508270A (nl) 1976-01-14
FR2278218A1 (fr) 1976-02-06
NL186058B (nl) 1990-04-02

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