AU2001294960A1 - Second order microphone array - Google Patents
Second order microphone arrayInfo
- 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
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)
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) | EP2348752A1 (en) |
AU (1) | AU2001294960A1 (en) |
WO (1) | WO2002028140A2 (en) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US20020131580A1 (en) * | 2001-03-16 | 2002-09-19 | Shure Incorporated | Solid angle cross-talk cancellation for beamforming arrays |
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 |
US8898056B2 (en) * | 2006-03-01 | 2014-11-25 | Qualcomm Incorporated | System and method for generating a separated signal by reordering frequency components |
JP2010519602A (en) * | 2007-02-26 | 2010-06-03 | クゥアルコム・インコーポレイテッド | System, method 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 |
WO2010022453A1 (en) | 2008-08-29 | 2010-03-04 | Dev-Audio Pty Ltd | A microphone array system and method for sound acquisition |
US8855326B2 (en) * | 2008-10-16 | 2014-10-07 | 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 |
CN103597856B (en) * | 2011-04-14 | 2017-07-04 | 福纳克股份公司 | 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 |
US20210136487A1 (en) * | 2019-11-01 | 2021-05-06 | 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 |
KR20220099209A (en) * | 2021-01-05 | 2022-07-13 | 삼성전자주식회사 | Acoustic sensor assembly and method for sensing sound using the same |
Family Cites Families (10)
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 |
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 |
-
2001
- 2001-09-28 AU AU2001294960A patent/AU2001294960A1/en not_active Abandoned
- 2001-09-28 EP EP11164803A patent/EP2348752A1/en not_active Withdrawn
- 2001-09-28 US US09/966,873 patent/US7065220B2/en not_active Expired - Fee Related
- 2001-09-28 EP EP01975662A patent/EP1356706A2/en not_active Withdrawn
- 2001-09-28 WO PCT/US2001/030781 patent/WO2002028140A2/en active Application Filing
- 2001-09-28 EP EP11164792A patent/EP2348751A1/en not_active Withdrawn
-
2006
- 2006-05-19 US US11/437,036 patent/US20060280318A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2002028140A2 (en) | 2002-04-04 |
EP2348752A1 (en) | 2011-07-27 |
EP2348751A1 (en) | 2011-07-27 |
US20030142836A1 (en) | 2003-07-31 |
WO2002028140A3 (en) | 2003-08-21 |
US7065220B2 (en) | 2006-06-20 |
EP1356706A2 (en) | 2003-10-29 |
US20060280318A1 (en) | 2006-12-14 |
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