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AU2001294960A1 - Second order microphone array - Google Patents

Second order microphone array

Info

Publication number
AU2001294960A1
AU2001294960A1 AU2001294960A AU9496001A AU2001294960A1 AU 2001294960 A1 AU2001294960 A1 AU 2001294960A1 AU 2001294960 A AU2001294960 A AU 2001294960A AU 9496001 A AU9496001 A AU 9496001A AU 2001294960 A1 AU2001294960 A1 AU 2001294960A1
Authority
AU
Australia
Prior art keywords
microphone array
order microphone
order
array
microphone
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.)
Abandoned
Application number
AU2001294960A
Inventor
Stephen C. Thompson
Daniel Max Warren
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.)
Knowles Electronics LLC
Original Assignee
Knowles Electronics LLC
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 Knowles Electronics LLC filed Critical Knowles Electronics LLC
Publication of AU2001294960A1 publication Critical patent/AU2001294960A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H04R29/005—Microphone arrays
    • H04R29/006—Microphone matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; 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
    • H04R2201/403—Linear arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Neurosurgery (AREA)
  • Circuit For Audible Band Transducer (AREA)
AU2001294960A 2000-09-29 2001-09-28 Second order microphone array Abandoned AU2001294960A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US23676800P 2000-09-29 2000-09-29
US60/236,768 2000-09-29
US32221101P 2001-09-11 2001-09-11
US60/322,211 2001-09-11
PCT/US2001/030781 WO2002028140A2 (en) 2000-09-29 2001-09-28 Second order microphone array

Publications (1)

Publication Number Publication Date
AU2001294960A1 true AU2001294960A1 (en) 2002-04-08

Family

ID=26930096

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001294960A Abandoned AU2001294960A1 (en) 2000-09-29 2001-09-28 Second order microphone array

Country Status (4)

Country Link
US (2) US7065220B2 (en)
EP (3) EP2348751A1 (en)
AU (1) AU2001294960A1 (en)
WO (1) WO2002028140A2 (en)

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* Cited by examiner, † Cited by third party
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DE10026078C1 (en) * 2000-05-25 2001-11-08 Siemens Ag Directional microphone set has 5 microphones with figure 8 directional characteristic arranged to provide sine and cosine signals
US7471798B2 (en) 2000-09-29 2008-12-30 Knowles Electronics, Llc Microphone array having a second order directional pattern
AU2001294960A1 (en) * 2000-09-29 2002-04-08 Knowles Electronics, Llc. Second order microphone array
US20020131580A1 (en) * 2001-03-16 2002-09-19 Shure Incorporated Solid angle cross-talk cancellation for beamforming arrays
US7072482B2 (en) 2002-09-06 2006-07-04 Sonion Nederland B.V. Microphone with improved sound inlet port
DE10310579B4 (en) * 2003-03-11 2005-06-16 Siemens Audiologische Technik Gmbh Automatic microphone adjustment for a directional microphone system with at least three microphones
DE10313330B4 (en) * 2003-03-25 2005-04-14 Siemens Audiologische Technik Gmbh Method for suppressing at least one acoustic interference signal and apparatus for carrying out the method
DE10327890A1 (en) 2003-06-20 2005-01-20 Siemens Audiologische Technik Gmbh Method for operating a hearing aid and hearing aid with a microphone system, in which different directional characteristics are adjustable
US7212643B2 (en) * 2004-02-10 2007-05-01 Phonak Ag Real-ear zoom hearing device
EP1443798B1 (en) * 2004-02-10 2006-06-07 Phonak Ag Real-ear zoom hearing device
US8873768B2 (en) * 2004-12-23 2014-10-28 Motorola Mobility Llc Method and apparatus for audio signal enhancement
US7542580B2 (en) 2005-02-25 2009-06-02 Starkey Laboratories, Inc. Microphone placement in hearing assistance devices to provide controlled directivity
WO2007103037A2 (en) * 2006-03-01 2007-09-13 Softmax, Inc. System and method for generating a separated signal
KR20090123921A (en) * 2007-02-26 2009-12-02 퀄컴 인코포레이티드 Systems, methods and apparatus for signal separation
US8160273B2 (en) * 2007-02-26 2012-04-17 Erik Visser Systems, methods, and apparatus for signal separation using data driven techniques
DE102007033896B4 (en) 2007-07-20 2012-04-19 Siemens Medical Instruments Pte. Ltd. Hearing apparatus with signal processing on the basis of design-related parameters and corresponding method
US8031881B2 (en) 2007-09-18 2011-10-04 Starkey Laboratories, Inc. Method and apparatus for microphone matching for wearable directional hearing device using wearer's own voice
US8175291B2 (en) * 2007-12-19 2012-05-08 Qualcomm Incorporated Systems, methods, and apparatus for multi-microphone based speech enhancement
US8321214B2 (en) * 2008-06-02 2012-11-27 Qualcomm Incorporated Systems, methods, and apparatus for multichannel signal amplitude balancing
AU2009287421B2 (en) 2008-08-29 2015-09-17 Biamp Systems, LLC A microphone array system and method for sound acquisition
WO2010043998A1 (en) * 2008-10-16 2010-04-22 Nxp B.V. Microphone system and method of operating the same
DE102009052992B3 (en) * 2009-11-12 2011-03-17 Institut für Rundfunktechnik GmbH Method for mixing microphone signals of a multi-microphone sound recording
US8588441B2 (en) * 2010-01-29 2013-11-19 Phonak Ag Method for adaptively matching microphones of a hearing system as well as a hearing system
WO2012139230A1 (en) * 2011-04-14 2012-10-18 Phonak Ag Hearing instrument
US9253567B2 (en) 2011-08-31 2016-02-02 Stmicroelectronics S.R.L. Array microphone apparatus for generating a beam forming signal and beam forming method thereof
US9055357B2 (en) 2012-01-05 2015-06-09 Starkey Laboratories, Inc. Multi-directional and omnidirectional hybrid microphone for hearing assistance devices
US9241223B2 (en) * 2014-01-31 2016-01-19 Malaspina Labs (Barbados) Inc. Directional filtering of audible signals
US9716946B2 (en) * 2014-06-01 2017-07-25 Insoundz Ltd. System and method thereof for determining of an optimal deployment of microphones to achieve optimal coverage in a three-dimensional space
US9769552B2 (en) * 2014-08-19 2017-09-19 Apple Inc. Method and apparatus for estimating talker distance
MC200185B1 (en) * 2016-09-16 2017-10-04 Coronal Audio Device and method for capturing and processing a three-dimensional acoustic field
MC200186B1 (en) 2016-09-30 2017-10-18 Coronal Encoding Method for conversion, stereo encoding, decoding and transcoding of a three-dimensional audio signal
US10455321B2 (en) 2017-04-28 2019-10-22 Qualcomm Incorporated Microphone configurations
JP2020036214A (en) 2018-08-30 2020-03-05 Tdk株式会社 MEMS microphone
JP2020036215A (en) 2018-08-30 2020-03-05 Tdk株式会社 MEMS microphone
US10904657B1 (en) * 2019-10-11 2021-01-26 Plantronics, Inc. Second-order gradient microphone system with baffles for teleconferencing
US12028678B2 (en) * 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
US10951981B1 (en) * 2019-12-17 2021-03-16 Northwestern Polyteclmical University Linear differential microphone arrays based on geometric optimization
CN213586269U (en) 2019-12-27 2021-06-29 楼氏电子(苏州)有限公司 Acoustic receiver
KR102852292B1 (en) * 2021-01-05 2025-08-29 삼성전자주식회사 Acoustic sensor assembly and method for sensing sound using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860928A (en) * 1972-07-03 1975-01-14 Raytheon Co Super-directive system
JPH0728470B2 (en) * 1989-02-03 1995-03-29 松下電器産業株式会社 Array microphone
US5224170A (en) * 1991-04-15 1993-06-29 Hewlett-Packard Company Time domain compensation for transducer mismatch
US5463694A (en) * 1993-11-01 1995-10-31 Motorola Gradient directional microphone system and method therefor
DE19822021C2 (en) * 1998-05-15 2000-12-14 Siemens Audiologische Technik Hearing aid with automatic microphone adjustment and method for operating a hearing aid with automatic microphone adjustment
US6654468B1 (en) * 1998-08-25 2003-11-25 Knowles Electronics, Llc Apparatus and method for matching the response of microphones in magnitude and phase
US6526147B1 (en) * 1998-11-12 2003-02-25 Gn Netcom A/S Microphone array with high directivity
US6741713B1 (en) * 1998-12-17 2004-05-25 Sonionmicrotronic Nederlan B.V. Directional hearing device
AU2001294960A1 (en) * 2000-09-29 2002-04-08 Knowles Electronics, Llc. Second order microphone array
US7471798B2 (en) * 2000-09-29 2008-12-30 Knowles Electronics, Llc Microphone array having a second order directional pattern

Also Published As

Publication number Publication date
US20060280318A1 (en) 2006-12-14
EP1356706A2 (en) 2003-10-29
US7065220B2 (en) 2006-06-20
WO2002028140A3 (en) 2003-08-21
EP2348751A1 (en) 2011-07-27
WO2002028140A2 (en) 2002-04-04
EP2348752A1 (en) 2011-07-27
US20030142836A1 (en) 2003-07-31

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