JPS6439195A - Microphone device - Google Patents

Microphone device

Info

Publication number
JPS6439195A
JPS6439195A JP19471487A JP19471487A JPS6439195A JP S6439195 A JPS6439195 A JP S6439195A JP 19471487 A JP19471487 A JP 19471487A JP 19471487 A JP19471487 A JP 19471487A JP S6439195 A JPS6439195 A JP S6439195A
Authority
JP
Japan
Prior art keywords
signal
microphone
gain
wind noise
adder
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
JP19471487A
Other languages
Japanese (ja)
Other versions
JPH0787630B2 (en
Inventor
Katsunori Fujimura
Michio Matsumoto
Satoru Ibaraki
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP19471487A priority Critical patent/JPH0787630B2/en
Publication of JPS6439195A publication Critical patent/JPS6439195A/en
Publication of JPH0787630B2 publication Critical patent/JPH0787630B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To reduce wind noise, etc., to be generated when it is strongly windy and to improve a sound recording quality by providing an attenuator to set the signal of an unidirectional microphone to a low gain and a signal from an adder to a high gain. CONSTITUTION:A part of the output signal of a single directional microphone 1 is separated into a medium-high frequency band by an HPF 10, a part of the output signal of a non-oriented microphone 4 is separated into a low frequency band by a BPF 11, respectively inputted to an adder 12 and added. The other part of the output signal of microphones 1 and 4 is inputted to a deciding part 7 through level detecting parts 3 and 6, and a whether wind noise or a voice signal is obtained is decided. When the judgement of the part 7 obtains wind noise, an attenuator 8 makes the signal of the microphone 1 into a low gain, the signal from the adder 12 into a high gain, and switches automatically and successively the two signals being gain-set. Thus, the wind noise at time of strong wind, and mechanical noise, etc., generated from the environment of the microphone are reduced and the recording quality and operability are improved.
JP19471487A 1987-08-04 1987-08-04 Microphone device Expired - Fee Related JPH0787630B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19471487A JPH0787630B2 (en) 1987-08-04 1987-08-04 Microphone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19471487A JPH0787630B2 (en) 1987-08-04 1987-08-04 Microphone device

Publications (2)

Publication Number Publication Date
JPS6439195A true JPS6439195A (en) 1989-02-09
JPH0787630B2 JPH0787630B2 (en) 1995-09-20

Family

ID=16329027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19471487A Expired - Fee Related JPH0787630B2 (en) 1987-08-04 1987-08-04 Microphone device

Country Status (1)

Country Link
JP (1) JPH0787630B2 (en)

Also Published As

Publication number Publication date
JPH0787630B2 (en) 1995-09-20

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees