JPH01177608U - - Google Patents
Info
- Publication number
- JPH01177608U JPH01177608U JP7417488U JP7417488U JPH01177608U JP H01177608 U JPH01177608 U JP H01177608U JP 7417488 U JP7417488 U JP 7417488U JP 7417488 U JP7417488 U JP 7417488U JP H01177608 U JPH01177608 U JP H01177608U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- adjustment circuit
- volume
- sound quality
- input terminal
- 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
- 230000005236 sound signal Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案にかかわる音量および音質調整
装置を用いる音響装置の構成ブロツク図、第２図
〜第４図は変数Ｍ，Ｎを変化させた場合のトレブ
ル回路５ａの周波数特性図、第５図は従来の音響
装置の構成ブロツク図である。
２……音量調整回路、３……音量設定回路、４
……演算増幅器、５……音質調整回路、５ａ……
トレブル回路、５ｂ……バス回路、６……帰還抵
抗。
FIG. 1 is a block diagram of the configuration of an audio device using the volume and tone adjustment device according to the present invention, FIGS. 2 to 4 are frequency characteristic diagrams of the treble circuit 5a when variables M and N are changed, and FIG. The figure is a block diagram of a conventional audio device. 2...Volume adjustment circuit, 3...Volume setting circuit, 4
...Operation amplifier, 5...Sound quality adjustment circuit, 5a...
Treble circuit, 5b...bass circuit, 6...feedback resistor.
Claims (1)
を調整する音量調整回路と、 入力端子を有し、この入力端子には音量調整回
路からの出力が与えられる演算増幅器と、 前記演算増幅器の出力に並列して接続され、予
め定める周波数領域の音響成分を調整すると共に
、前記演算増幅器の前記入力端子に負帰還する音
質調整回路とを含むことを特徴とする音量および
音質調整装置。[Claims for Utility Model Registration] An operational amplifier having a volume adjustment circuit that adjusts the volume of an audio signal by varying the amount of attenuation of the audio signal, and an input terminal, to which the output from the volume adjustment circuit is applied. and a sound quality adjustment circuit connected in parallel to the output of the operational amplifier to adjust acoustic components in a predetermined frequency range and to provide negative feedback to the input terminal of the operational amplifier. Sound quality adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7417488U JPH0644176Y2 (en) | 1988-06-02 | 1988-06-02 | Volume and sound quality adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7417488U JPH0644176Y2 (en) | 1988-06-02 | 1988-06-02 | Volume and sound quality adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01177608U true JPH01177608U (en) | 1989-12-19 |
| JPH0644176Y2 JPH0644176Y2 (en) | 1994-11-14 |
Family
ID=31299292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7417488U Expired - Lifetime JPH0644176Y2 (en) | 1988-06-02 | 1988-06-02 | Volume and sound quality adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644176Y2 (en) |
-
1988
- 1988-06-02 JP JP7417488U patent/JPH0644176Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644176Y2 (en) | 1994-11-14 |
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