JPS6430924U - - Google Patents
Info
- Publication number
- JPS6430924U JPS6430924U JP12621387U JP12621387U JPS6430924U JP S6430924 U JPS6430924 U JP S6430924U JP 12621387 U JP12621387 U JP 12621387U JP 12621387 U JP12621387 U JP 12621387U JP S6430924 U JPS6430924 U JP S6430924U
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- low
- cut characteristic
- audio volume
- switch element
- 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
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案に係るオートラウドネス回路の
実施例を示す回路図、第２図は音声ボリユームの
設定レベルに対する周波数特性を示すグラフ、第
３図はハイカツト調整回路に係る他の実施例を示
す回路図である。
１…オートラウドネス回路、５…ハイパスフイ
ルタ、８…ローパスフイルタ、９…音声ボリユー
ム、１４…ハイカツト調整回路、１７…ローカツ
ト調整回路。
Fig. 1 is a circuit diagram showing an embodiment of the auto-loudness circuit according to the present invention, Fig. 2 is a graph showing frequency characteristics with respect to the set level of audio volume, and Fig. 3 shows another embodiment of the high-cut adjustment circuit. It is a circuit diagram. 1...Auto loudness circuit, 5...High pass filter, 8...Low pass filter, 9...Audio volume, 14...High cut adjustment circuit, 17...Low cut adjustment circuit.
Claims (1)
該ハイパスフイルタのハイカツト特性及びローパ
スフイルタのローカツト特性は、音声ボリユーム
の設定レベルに連係して変化する電圧レベルに応
じてバイアス状態が変化されるスイツチ素子によ
つて制御されることを特徴とするオートラウドネ
ス回路。 Equipped with high pass filter and low pass filter,
The high-cut characteristic of the high-pass filter and the low-cut characteristic of the low-pass filter are controlled by a switch element whose bias state is changed according to a voltage level that changes in conjunction with the set level of the audio volume. Loudness circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12621387U JPS6430924U (en) | 1987-08-18 | 1987-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12621387U JPS6430924U (en) | 1987-08-18 | 1987-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6430924U true JPS6430924U (en) | 1989-02-27 |
Family
ID=31377523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12621387U Pending JPS6430924U (en) | 1987-08-18 | 1987-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6430924U (en) |
-
1987
- 1987-08-18 JP JP12621387U patent/JPS6430924U/ja active Pending