JPS56117497A - Adjuster of directive microphone - Google Patents
Adjuster of directive microphoneInfo
- 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
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.
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)
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 |
-
1980
- 1980-02-22 JP JP2185080A patent/JPS56117497A/en active Granted
Cited By (5)
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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