DE69404369T2 - Stereoultrarichtmikrophongerät - Google Patents

Stereoultrarichtmikrophongerät

Info

Publication number
DE69404369T2
DE69404369T2 DE69404369T DE69404369T DE69404369T2 DE 69404369 T2 DE69404369 T2 DE 69404369T2 DE 69404369 T DE69404369 T DE 69404369T DE 69404369 T DE69404369 T DE 69404369T DE 69404369 T2 DE69404369 T2 DE 69404369T2
Authority
DE
Germany
Prior art keywords
stereoule
microphone device
directional microphone
directional
stereoule directional
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 - Fee Related
Application number
DE69404369T
Other languages
English (en)
Other versions
DE69404369D1 (de
Inventor
Takeo Kanamori
Junichi Tagawa
Satoru Ibaraki
Hiroki Furukawa
Kiminori Ono
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP8595293A external-priority patent/JPH06303691A/ja
Priority claimed from JP25677693A external-priority patent/JPH07111694A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69404369D1 publication Critical patent/DE69404369D1/de
Application granted granted Critical
Publication of DE69404369T2 publication Critical patent/DE69404369T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic Arrangements (AREA)
DE69404369T 1993-04-13 1994-04-13 Stereoultrarichtmikrophongerät Expired - Fee Related DE69404369T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8595293A JPH06303691A (ja) 1993-04-13 1993-04-13 ステレオマイクロホン
JP25677693A JPH07111694A (ja) 1993-10-14 1993-10-14 ステレオ超指向性マイクロホン

Publications (2)

Publication Number Publication Date
DE69404369D1 DE69404369D1 (de) 1997-08-28
DE69404369T2 true DE69404369T2 (de) 1997-11-13

Family

ID=26426959

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69404369T Expired - Fee Related DE69404369T2 (de) 1993-04-13 1994-04-13 Stereoultrarichtmikrophongerät

Country Status (3)

Country Link
US (1) US5633935A (de)
EP (1) EP0621737B1 (de)
DE (1) DE69404369T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5715319A (en) * 1996-05-30 1998-02-03 Picturetel Corporation Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements
US6603861B1 (en) * 1997-08-20 2003-08-05 Phonak Ag Method for electronically beam forming acoustical signals and acoustical sensor apparatus
WO1999045741A2 (en) * 1998-03-02 1999-09-10 Mwm Acoustics, Llc Directional microphone system
CA2394286C (en) * 1999-12-22 2007-09-25 Musikproduction Dabringhaus Und Grimm Ohg Method and arrangement for recording and playing back sounds
US6826284B1 (en) * 2000-02-04 2004-11-30 Agere Systems Inc. Method and apparatus for passive acoustic source localization for video camera steering applications
ATE535103T1 (de) * 2000-06-13 2011-12-15 Gn Resound As Adaptives mikrofon-array-system mit erhaltung binauraler hinweise
US7246058B2 (en) * 2001-05-30 2007-07-17 Aliph, Inc. Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors
US8280072B2 (en) 2003-03-27 2012-10-02 Aliphcom, Inc. Microphone array with rear venting
US20030179888A1 (en) * 2002-03-05 2003-09-25 Burnett Gregory C. Voice activity detection (VAD) devices and methods for use with noise suppression systems
US8019091B2 (en) * 2000-07-19 2011-09-13 Aliphcom, Inc. Voice activity detector (VAD) -based multiple-microphone acoustic noise suppression
US20070233479A1 (en) * 2002-05-30 2007-10-04 Burnett Gregory C Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors
US20020099541A1 (en) * 2000-11-21 2002-07-25 Burnett Gregory C. Method and apparatus for voiced speech excitation function determination and non-acoustic assisted feature extraction
WO2002098169A1 (en) * 2001-05-30 2002-12-05 Aliphcom Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors
US8452023B2 (en) 2007-05-25 2013-05-28 Aliphcom Wind suppression/replacement component for use with electronic systems
US7142677B2 (en) * 2001-07-17 2006-11-28 Clarity Technologies, Inc. Directional sound acquisition
US7123727B2 (en) * 2001-07-18 2006-10-17 Agere Systems Inc. Adaptive close-talking differential microphone array
TW200305854A (en) * 2002-03-27 2003-11-01 Aliphcom Inc Microphone and voice activity detection (VAD) configurations for use with communication system
TW200425763A (en) 2003-01-30 2004-11-16 Aliphcom Inc Acoustic vibration sensor
US9066186B2 (en) 2003-01-30 2015-06-23 Aliphcom Light-based detection for acoustic applications
US9099094B2 (en) 2003-03-27 2015-08-04 Aliphcom Microphone array with rear venting
CN101779476B (zh) 2007-06-13 2015-02-25 爱利富卡姆公司 全向性双麦克风阵列
WO2011001195A1 (en) * 2009-06-29 2011-01-06 Nokia Corporation Temperature compensated microphone
CN103210668B (zh) 2010-09-06 2016-05-04 杜比国际公司 用于多通道音频再生的向上混合方法及系统
DE102011012573B4 (de) * 2011-02-26 2021-09-16 Paragon Ag Sprachbedienvorrichtung für Kraftfahrzeuge und Verfahren zur Auswahl eines Mikrofons für den Betrieb einer Sprachbedienvorrichtung
DE102014206691A1 (de) * 2014-04-07 2015-10-08 Sennheiser Electronic Gmbh & Co. Kg Stereo-Mikrofoneinheit mit zwei Interferenzrohren
US9712904B1 (en) * 2016-03-29 2017-07-18 Bby Solutions, Inc. Multi-mode microphone

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715500A (en) * 1971-07-21 1973-02-06 Bell Telephone Labor Inc Unidirectional microphones
US3793489A (en) * 1972-05-22 1974-02-19 Rca Corp Ultradirectional microphone
US4066842A (en) * 1977-04-27 1978-01-03 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling room reverberation and noise pickup
DE2918831C2 (de) * 1979-05-10 1982-09-30 Institut für Rundfunktechnik GmbH, 8000 München Schaltungsanordnung zum Anpassen eines raumbezogen stereophonen Programmsignals an einen freifeldentzerrten Kopfhörer
US4742548A (en) * 1984-12-20 1988-05-03 American Telephone And Telegraph Company Unidirectional second order gradient microphone
US4893342A (en) * 1987-10-15 1990-01-09 Cooper Duane H Head diffraction compensated stereo system
JP3264489B2 (ja) * 1988-07-08 2002-03-11 アダプティブ オーディオ リミテッド 音響再生装置
JP2893756B2 (ja) * 1989-10-17 1999-05-24 ソニー株式会社 マイクロホン装置
US5107467A (en) * 1990-04-13 1992-04-21 Jorson Enterprises, Inc. Echo location system for vision-impaired persons
JPH04144399A (ja) * 1990-10-04 1992-05-18 Mitsubishi Electric Corp マイクロホン装置

Also Published As

Publication number Publication date
EP0621737B1 (de) 1997-07-23
DE69404369D1 (de) 1997-08-28
US5633935A (en) 1997-05-27
EP0621737A1 (de) 1994-10-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee