JPS61166622U - - Google Patents
Info
- Publication number
- JPS61166622U JPS61166622U JP4993985U JP4993985U JPS61166622U JP S61166622 U JPS61166622 U JP S61166622U JP 4993985 U JP4993985 U JP 4993985U JP 4993985 U JP4993985 U JP 4993985U JP S61166622 U JPS61166622 U JP S61166622U
- Authority
- JP
- Japan
- Prior art keywords
- sound quality
- control
- bass
- voltage
- treble
- 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
- 238000003908 quality control method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 1
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案において用いる２連の可変抵抗器の接
続関係を示す回路図、第３図は第１図に示した実
施例の音質変化特性を示すグラフ、第４図は従来
の信号ラインのインピーダンス関係による音質調
整回路を示す回路図、第５図は従来の直流電圧制
御の音質調整回路を示す回路図である。
符号の説明、１……音声信号入力、２，３，４
，５……音質調整用回路、６……可変抵抗器、７
……音声出力、８……音声入力、９……音声出力
、１０……低域制御用増幅器、１１……高域制御
用増幅器、１２……音量制御用増幅器、１３，１
４，１５……制御回路、１６，１７，１８……可
変抵抗器、１９……音質・音量制御回路ブロツク
、２０……２連可変抵抗器調整点、２１，２６…
…音質調整回路ブロツク、２２，２３，２４，２
５……抵抗器。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing the connection relationship between two variable resistors used in the present invention, Figure 3 is a graph showing the sound quality change characteristics of the embodiment shown in Figure 1, and Figure 4 is the impedance of the conventional signal line. FIG. 5 is a circuit diagram showing a conventional sound quality adjustment circuit using DC voltage control. Explanation of symbols, 1...Audio signal input, 2, 3, 4
, 5... Sound quality adjustment circuit, 6... Variable resistor, 7
...Audio output, 8...Audio input, 9...Audio output, 10...Low frequency control amplifier, 11...High frequency control amplifier, 12...Volume control amplifier, 13,1
4, 15... Control circuit, 16, 17, 18... Variable resistor, 19... Sound quality/volume control circuit block, 20... Double variable resistor adjustment point, 21, 26...
...Sound quality adjustment circuit block, 22, 23, 24, 2
5...Resistor.
Claims (1)
ースの間に接続された２連の可変抵抗器を用意し
、その一方の抵抗器を、低音域音質制御回路にお
ける直流制御電圧の制御用に、他方の抵抗器を、
高音域音質制御回路における直流制御電圧の制御
用に用い、前記２連の可変抵抗器に共通に設けら
れた一つの調整つまみで調整することにより、高
音域と低音域を同時に音質制御するようにしたこ
とを特徴とする音質調整回路。 Prepare two variable resistors connected between the power supply and the ground so that the voltage change characteristics are opposite to each other, and use one of the resistors to control the DC control voltage in the bass sound quality control circuit. the other resistor,
It is used to control the DC control voltage in the treble range sound quality control circuit, and by adjusting it with one adjustment knob commonly provided on the two variable resistors, the sound quality of the treble and bass ranges can be controlled simultaneously. A sound quality adjustment circuit characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4993985U JPS61166622U (en) | 1985-04-05 | 1985-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4993985U JPS61166622U (en) | 1985-04-05 | 1985-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61166622U true JPS61166622U (en) | 1986-10-16 |
Family
ID=30567593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4993985U Pending JPS61166622U (en) | 1985-04-05 | 1985-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61166622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425222U (en) * | 1987-08-06 | 1989-02-13 |
-
1985
- 1985-04-05 JP JP4993985U patent/JPS61166622U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425222U (en) * | 1987-08-06 | 1989-02-13 |
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