JPS62143323U - - Google Patents

Info

Publication number
JPS62143323U
JPS62143323U JP3099286U JP3099286U JPS62143323U JP S62143323 U JPS62143323 U JP S62143323U JP 3099286 U JP3099286 U JP 3099286U JP 3099286 U JP3099286 U JP 3099286U JP S62143323 U JPS62143323 U JP S62143323U
Authority
JP
Japan
Prior art keywords
room
output
reference voltage
broadcasting
comparison circuit
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.)
Pending
Application number
JP3099286U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP3099286U priority Critical patent/JPS62143323U/ja
Publication of JPS62143323U publication Critical patent/JPS62143323U/ja
Pending legal-status Critical Current

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  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク図、第２
図は二つの室の騒音レベルの時間変化を示す図で
ある。 １…スピーカ、２…音量調節装置、３…放送出
力、４…比較回路、５…騒音計、６…基準電圧発
生器。 Fig. 1 is a block diagram of an embodiment of the present invention;
The figure shows temporal changes in the noise levels in two rooms. DESCRIPTION OF SYMBOLS 1...Speaker, 2...Volume control device, 3...Broadcasting output, 4...Comparison circuit, 5...Sound level meter, 6...Reference voltage generator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 各室毎に設けられるスピーカと、各室毎に設け
られる騒音計と、前記騒音計から入力される騒音
レベルを基準電圧と比較し各室毎に基準電圧の差
を出力する比較回路と、放送出力と前記比較回路
の出力とを入力し前記各室毎の騒音レベルに応じ
て前記スピーカの出力音量を各室毎に調整する音
量調整装置とを含むことを特徴とする放送用スピ
ーカ装置。 A speaker provided in each room, a sound level meter provided in each room, a comparison circuit that compares the noise level input from the sound level meter with a reference voltage and outputs the difference in reference voltage for each room, and a broadcasting circuit. A loudspeaker device for broadcasting, comprising: a volume adjusting device which inputs the output and the output of the comparison circuit and adjusts the output volume of the speaker for each room according to the noise level of each room.
JP3099286U 1986-03-03 1986-03-03 Pending JPS62143323U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3099286U JPS62143323U (en) 1986-03-03 1986-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3099286U JPS62143323U (en) 1986-03-03 1986-03-03

Publications (1)

Publication Number Publication Date
JPS62143323U true JPS62143323U (en) 1987-09-10

Family

ID=30836311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3099286U Pending JPS62143323U (en) 1986-03-03 1986-03-03

Country Status (1)

Country Link
JP (1) JPS62143323U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05316598A (en) * 1992-05-08 1993-11-26 Kinki Nippon Tetsudo Kk Controller for broadcast sound volume in public space
JP2019176210A (en) * 2018-03-27 2019-10-10 東日本旅客鉄道株式会社 Sound volume controller and broadcasting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05316598A (en) * 1992-05-08 1993-11-26 Kinki Nippon Tetsudo Kk Controller for broadcast sound volume in public space
JP2019176210A (en) * 2018-03-27 2019-10-10 東日本旅客鉄道株式会社 Sound volume controller and broadcasting system

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