JPS56117497A - Adjuster of directive microphone - Google Patents

Adjuster of directive microphone

Info

Publication number
JPS56117497A
JPS56117497A JP2185080A JP2185080A JPS56117497A JP S56117497 A JPS56117497 A JP S56117497A JP 2185080 A JP2185080 A JP 2185080A JP 2185080 A JP2185080 A JP 2185080A JP S56117497 A JPS56117497 A JP S56117497A
Authority
JP
Japan
Prior art keywords
microphone
car
output
directive
noise
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.)
Granted
Application number
JP2185080A
Other languages
Japanese (ja)
Other versions
JPS6221477B2 (en
Inventor
Sadayuki Kurosaki
Akio Sasaki
Kenzo Miura
Juhei Takahashi
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.)
Nippon Telegraph and Telephone Corp
Panasonic Mobile Communications Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Matsushita Communication 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
Application filed by Nippon Telegraph and Telephone Corp, Matsushita Communication Industrial Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2185080A priority Critical patent/JPS56117497A/en
Publication of JPS56117497A publication Critical patent/JPS56117497A/en
Publication of JPS6221477B2 publication Critical patent/JPS6221477B2/ja
Granted 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

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)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To ensure a simple adjustment for a car telephone microphone to the optimum position and direction, by giving a comparison to the car noise outputs between a directive microphone and a plural number of nondirective microphones and then displaying the result of comparison. CONSTITUTION:When the voice is uttered in front of nondirective microphones 4-6 plus directive microphone 3, an equal output is set for the outputs of amplifiers 7-10. Then the noise is produced by the car engine, and the output of the amplifier 7 is set smaller than those of amplifiers 8-10. For this purpose, the front direction of the microphone 3 is turned to the mouth of a driver prior to start of the adjustment. As a result, the car noise output can be reduced for a directive microphone and thus the talking articulation can be enhanced without giving any fine adjustment as long as no big fluctuation is caused to the sound field by opening the windowns or doors or an increment of number of passengers.
JP2185080A 1980-02-22 1980-02-22 Adjuster of directive microphone Granted JPS56117497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2185080A JPS56117497A (en) 1980-02-22 1980-02-22 Adjuster of directive microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2185080A JPS56117497A (en) 1980-02-22 1980-02-22 Adjuster of directive microphone

Publications (2)

Publication Number Publication Date
JPS56117497A true JPS56117497A (en) 1981-09-14
JPS6221477B2 JPS6221477B2 (en) 1987-05-13

Family

ID=12066570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2185080A Granted JPS56117497A (en) 1980-02-22 1980-02-22 Adjuster of directive microphone

Country Status (1)

Country Link
JP (1) JPS56117497A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214707A (en) * 1990-08-16 1993-05-25 Fujitsu Ten Limited Control system for controlling equipment provided inside a vehicle utilizing a speech recognition apparatus
EP2187656A1 (en) * 2007-09-04 2010-05-19 Yamaha Corporation Sound collection device
US8559647B2 (en) 2007-09-21 2013-10-15 Yamaha Corporation Sound emitting and collecting apparatus
KR102474842B1 (en) * 2022-07-19 2022-12-06 주식회사 케이피 Fixture of ship's cooking vessel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214707A (en) * 1990-08-16 1993-05-25 Fujitsu Ten Limited Control system for controlling equipment provided inside a vehicle utilizing a speech recognition apparatus
EP2187656A1 (en) * 2007-09-04 2010-05-19 Yamaha Corporation Sound collection device
EP2187656A4 (en) * 2007-09-04 2011-05-25 Yamaha Corp Sound collection device
US8559647B2 (en) 2007-09-21 2013-10-15 Yamaha Corporation Sound emitting and collecting apparatus
KR102474842B1 (en) * 2022-07-19 2022-12-06 주식회사 케이피 Fixture of ship's cooking vessel

Also Published As

Publication number Publication date
JPS6221477B2 (en) 1987-05-13

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