JPH0157815U - - Google Patents
Info
- Publication number
- JPH0157815U JPH0157815U JP15342387U JP15342387U JPH0157815U JP H0157815 U JPH0157815 U JP H0157815U JP 15342387 U JP15342387 U JP 15342387U JP 15342387 U JP15342387 U JP 15342387U JP H0157815 U JPH0157815 U JP H0157815U
- Authority
- JP
- Japan
- Prior art keywords
- input
- output
- volume
- signal
- outputs
- 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
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の音響機器音量調整装置の一実
施例の構成を示す図、第２図は従来例の構成を示
す図である。
１……入力端子、２……入力切替器、３……音
量調整回路、４……ボリユーム、５……アンプ、
６……出力切替器、７……出力端子、８……音量
プリセツト回路、９……入力切替信号、１０……
出力切替信号、１１……音量プリセツト信号。
FIG. 1 is a diagram showing the configuration of an embodiment of the audio equipment volume adjustment device of the present invention, and FIG. 2 is a diagram showing the configuration of a conventional example. 1...Input terminal, 2...Input switch, 3...Volume adjustment circuit, 4...Volume, 5...Amplifier,
6... Output switch, 7... Output terminal, 8... Volume preset circuit, 9... Input switching signal, 10...
Output switching signal, 11...Volume preset signal.
Claims (1)
ことができ、かつ、選択された入力端子に入力さ
れた信号と、選択された入力端子を示す入力切替
信号を出力する入力切替器と、 前記複数の出力端子のいずれか１つを選択する
ことができ、入力された信号を選択された出力端
子へ出力し、かつ、選択された出力端子を示す出
力切替信号を出力する出力切替器と、 各入力端子、出力端子に接続される音響機器の
入力レベル、出力レベルの違いによる音量の変化
を打消すような利得調整値が予め設定され、入力
切替信号および出力切替信号を入力すると、これ
らの信号が示す入力端子、出力端子に対して設定
された利得調整値を音量プリセツト信号として出
力する音量プリセツト回路と、 音量調整用ボリユームが設けられ、入力切替器
の出力信号と前記音量プリセツト信号とを入力し
、入力切替器の出力信号の出力レベル設定を音量
調整用ボリユームの設定値と音量プリセツト信号
の示す利得調整値から行なつて出力する音量調整
回路と、 音量調整回路の出力を増幅し、出力切替器に出
力するアンプとを有する音響機器音量調整装置。[Claims for Utility Model Registration] A plurality of input terminals to which audio equipment is connected, a plurality of output terminals to which audio equipment is connected, any one of the plurality of input terminals can be selected, and , an input switch that outputs a signal input to a selected input terminal and an input switching signal indicating the selected input terminal; an output switching device that outputs the selected signal to the selected output terminal and outputs an output switching signal indicating the selected output terminal, and the input level and output level of the audio equipment connected to each input terminal and output terminal. A gain adjustment value that cancels out changes in volume due to differences in volume is set in advance, and when input switching signals and output switching signals are input, the gain adjustment value set for the input terminal and output terminal indicated by these signals is A volume preset circuit that outputs a volume preset signal and a volume adjustment volume are provided, the output signal of the input switch and the volume preset signal are input, and the output level setting of the output signal of the input switch is set as the volume adjustment volume. What is claimed is: 1. A volume adjustment device for audio equipment, comprising: a volume adjustment circuit that outputs a gain adjustment value based on a set value of , and a gain adjustment value indicated by a volume preset signal; and an amplifier that amplifies the output of the volume adjustment circuit and outputs it to an output switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15342387U JPH0157815U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15342387U JPH0157815U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0157815U true JPH0157815U (en) | 1989-04-11 |
Family
ID=31429248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15342387U Pending JPH0157815U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0157815U (en) |
-
1987
- 1987-10-06 JP JP15342387U patent/JPH0157815U/ja active Pending
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