GB1512514A - Microphone assemblies - Google Patents

Microphone assemblies

Info

Publication number
GB1512514A
GB1512514A GB30977/74A GB3097774A GB1512514A GB 1512514 A GB1512514 A GB 1512514A GB 30977/74 A GB30977/74 A GB 30977/74A GB 3097774 A GB3097774 A GB 3097774A GB 1512514 A GB1512514 A GB 1512514A
Authority
GB
United Kingdom
Prior art keywords
gain
microphone
order
points
khz
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
GB30977/74A
Other languages
English (en)
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
National Research Development Corp of India
Original Assignee
NAT RES DEV
National Research Development Corp of India
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, National Research Development Corp of India filed Critical NAT RES DEV
Priority to GB30977/74A priority Critical patent/GB1512514A/en
Priority to US05/593,244 priority patent/US4042779A/en
Priority to FR7521673A priority patent/FR2278218A1/fr
Priority to NLAANVRAGE7508270,A priority patent/NL186058C/xx
Priority to DE2531161A priority patent/DE2531161C2/de
Priority to JP50085186A priority patent/JPS5132319A/ja
Publication of GB1512514A publication Critical patent/GB1512514A/en
Expired 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; 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
    • 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)
GB30977/74A 1974-07-12 1974-07-12 Microphone assemblies Expired GB1512514A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB30977/74A GB1512514A (en) 1974-07-12 1974-07-12 Microphone assemblies
US05/593,244 US4042779A (en) 1974-07-12 1975-07-07 Coincident microphone simulation covering three dimensional space and yielding various directional outputs
FR7521673A FR2278218A1 (fr) 1974-07-12 1975-07-10 Ensemble de microphones
NLAANVRAGE7508270,A NL186058C (nl) 1974-07-12 1975-07-10 Microfooninrichting.
DE2531161A DE2531161C2 (de) 1974-07-12 1975-07-11 Mikrophonanordnung
JP50085186A JPS5132319A (en) 1974-07-12 1975-07-11 Maikuroppon asenburi

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1512514A true GB1512514A (en) 1978-06-01

Family

ID=10316054

Family Applications (1)

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

Country Status (6)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1737268A1 (en) 2005-06-23 2006-12-27 AKG Acoustics GmbH Sound field microphone
WO2008040991A3 (en) * 2006-10-06 2008-07-10 Peter G Craven Microphone array
US8345898B2 (en) 2008-02-26 2013-01-01 Akg Acoustics Gmbh Transducer assembly
WO2013032332A1 (en) 2011-09-02 2013-03-07 Munisense B.V. Device and method for measuring sound levels and direction or localisation of sound sources
US8472639B2 (en) 2007-11-13 2013-06-25 Akg Acoustics Gmbh Microphone arrangement having more than one pressure gradient transducer

Families Citing this family (56)

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GB1572093A (en) * 1976-03-16 1980-07-23 Wehner R Omniphonic transducer system
CA1091588A (en) * 1976-11-01 1980-12-16 William R. Wray Receiving system having a pre-selected directional rejection characteristic
DE3512155A1 (de) * 1985-04-03 1985-10-31 Gerhard 4330 Mülheim Woywod Elektroakustische anordnung fuer richtungsorientiertes, raeumliches hoeren
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
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
EP1749420A4 (en) * 2004-05-25 2008-10-15 Huonlabs Pty Ltd AUDIO APPARATUS AND METHOD
EP1856948B1 (en) * 2005-03-09 2011-10-05 MH Acoustics, LLC Position-independent microphone system
US8090117B2 (en) * 2005-03-16 2012-01-03 James Cox Microphone array and digital signal processing system
FI20055260A7 (fi) * 2005-05-27 2006-12-27 Oy Martin Kantola Consulting Ltd Laite, järjestelmä ja menetelmä akustisten signaalien vastaanottamista tai toistamista varten
FI20055261A0 (fi) 2005-05-27 2005-05-27 Midas Studios Avoin Yhtioe Akustisten muuttajien kokoonpano, järjestelmä ja menetelmä akustisten signaalien vastaanottamista tai toistamista varten
EP1737265A1 (en) * 2005-06-23 2006-12-27 AKG Acoustics GmbH Determination of the position of sound sources
ATE378793T1 (de) * 2005-06-23 2007-11-15 Akg Acoustics Gmbh Methode zur modellierung eines mikrofons
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
EP1994788B1 (en) * 2006-03-10 2014-05-07 MH Acoustics, LLC Noise-reducing directional microphone array
GB0720473D0 (en) * 2007-10-19 2007-11-28 Univ Surrey Accoustic source separation
CN101855914B (zh) * 2007-11-13 2014-08-20 Akg声学有限公司 声源的位置确定
EP2262277B1 (en) 2007-11-13 2012-01-04 AKG Acoustics GmbH Microphone arrangement
WO2009062210A1 (en) * 2007-11-13 2009-05-22 Akg Acoustics Gmbh Microphone arrangement
ATE507683T1 (de) * 2007-11-13 2011-05-15 Akg Acoustics Gmbh Mikrofonanordnung mit drei druckgradientenwandlern
DE102008004674A1 (de) 2007-12-17 2009-06-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalaufnahme mit variabler Richtcharakteristik
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
US9173048B2 (en) 2011-08-23 2015-10-27 Dolby Laboratories Licensing Corporation Method and system for generating a matrix-encoded two-channel audio signal
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
US10356514B2 (en) 2016-06-15 2019-07-16 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
RU2740703C1 (ru) 2017-07-14 2021-01-20 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Принцип формирования улучшенного описания звукового поля или модифицированного описания звукового поля с использованием многослойного описания
BR112020000775A2 (pt) * 2017-07-14 2020-07-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. aparelho para gerar uma descrição do campo sonoro, programa de computador, descrição do campo sonoro aprimorada e seu método de geração
RU2736274C1 (ru) * 2017-07-14 2020-11-13 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Принцип формирования улучшенного описания звукового поля или модифицированного описания звукового поля с использованием dirac-технологии с расширением глубины или других технологий
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 CONTROLLABLE VECTOR DIFFERENTIAL MICROPHONE ARRANGEMENTS
CN212660316U (zh) * 2019-09-30 2021-03-05 罗技欧洲公司 麦克风炭精盒组件
CN116325794A (zh) * 2020-10-13 2023-06-23 Ask工业股份公司 麦克风单元、麦克风元阵列和带有麦克风元阵列的网络
US11696083B2 (en) 2020-10-21 2023-07-04 Mh Acoustics, Llc In-situ calibration of microphone arrays

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (https=) * 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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1737268A1 (en) 2005-06-23 2006-12-27 AKG Acoustics GmbH Sound field microphone
WO2008040991A3 (en) * 2006-10-06 2008-07-10 Peter G Craven Microphone array
CN101548554B (zh) * 2006-10-06 2011-11-16 彼得·G·克拉文 麦克风阵列
US8406436B2 (en) 2006-10-06 2013-03-26 Peter G. Craven Microphone array
US8472639B2 (en) 2007-11-13 2013-06-25 Akg Acoustics Gmbh Microphone arrangement having more than one pressure gradient transducer
US8345898B2 (en) 2008-02-26 2013-01-01 Akg Acoustics Gmbh Transducer assembly
WO2013032332A1 (en) 2011-09-02 2013-03-07 Munisense B.V. Device and method for measuring sound levels and direction or localisation of sound sources

Also Published As

Publication number Publication date
JPS6216080B2 (https=) 1987-04-10
FR2278218B1 (https=) 1982-10-29
DE2531161A1 (de) 1976-01-22
NL186058C (nl) 1990-09-03
US4042779A (en) 1977-08-16
JPS5132319A (en) 1976-03-18
DE2531161C2 (de) 1984-08-23
FR2278218A1 (fr) 1976-02-06
NL186058B (nl) 1990-04-02
NL7508270A (nl) 1976-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940701