JPH0356218U - - Google Patents
Info
- Publication number
- JPH0356218U JPH0356218U JP11480189U JP11480189U JPH0356218U JP H0356218 U JPH0356218 U JP H0356218U JP 11480189 U JP11480189 U JP 11480189U JP 11480189 U JP11480189 U JP 11480189U JP H0356218 U JPH0356218 U JP H0356218U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- measuring device
- noise
- vehicle audio
- bass
- 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
- 238000005259 measurement Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第1図乃至第3図はこの考案に係る車載用音響
機器の実施例を示し、第1図はブロツク図、第2
図はこの考案の他の実施例のブロツク図、第3図
は低音ブースタを介した車載用音響機器周波数特
性を示し、第3図aは低音ブースタのブースト状
態でないときの周波数特性を示す図、第3図bは
ブースト状態での周波数特性の一例を示す図であ
る。第4図は従来の実施例を示し、第4図aはブ
ロツク図、第4図bは車両のスピードが80Km/
Hのときの騒音の状態を示す騒音特性図、第4図
cは車両のスピードが100Km/Hのときの騒音
の状態を示す騒音特性図である。
主な符号の説明、5…騒音測定装置、6…低音
ブースタ。
Figures 1 to 3 show an embodiment of the in-vehicle audio equipment according to this invention, with Figure 1 being a block diagram and Figure 2 being a block diagram.
Fig. 3 is a block diagram of another embodiment of this invention, Fig. 3 shows the frequency characteristics of an in-vehicle audio equipment via the bass booster, Fig. 3a shows the frequency characteristics of the bass booster when it is not in the boost state, FIG. 3b is a diagram showing an example of frequency characteristics in a boost state. Fig. 4 shows a conventional embodiment, Fig. 4a is a block diagram, and Fig. 4b shows a vehicle speed of 80km/h.
FIG. 4c is a noise characteristic diagram showing the noise state when the vehicle speed is 100 km/h. Explanation of main symbols, 5... Noise measuring device, 6... Bass booster.
Claims (1)
数特性を変化させることのできる周波数特性可変
装置とを設け、前記騒音測定装置の測定結果に基
づき周波数特性可変装置の周波数特性を制御する
ように構成したことを特徴とする車載用音響機器
。 2 騒音レベルを測定する騒音測定装置と、低音
域の周波数特性を可変できるようにした低音ブー
スタとを設け、前記騒音測定装置の測定結果に基
づき低音ブースタの周波数特性を制御するように
構成したことを特徴とする車載用音響機器。 3 騒音レベルが高くなると低音ブースタのブー
スト周波数を上昇させ、且つ、ブースト量を下げ
るように構成したことを特徴とする請求項2記載
の車載用音響機器。[Claims for Utility Model Registration] 1. Provides a noise measuring device that measures noise level and a frequency characteristic variable device that can change frequency characteristics, and adjusts the frequency of the frequency characteristic variable device based on the measurement results of the noise measuring device. An in-vehicle audio device characterized by being configured to control characteristics. 2. A noise measuring device that measures the noise level and a bass booster that can vary the frequency characteristics of the bass range are provided, and the frequency characteristics of the bass booster are controlled based on the measurement results of the noise measuring device. In-vehicle audio equipment featuring: 3. The in-vehicle audio equipment according to claim 2, wherein the boost frequency of the bass booster is increased and the amount of boost is decreased when the noise level increases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989114801U JP2521662Y2 (en) | 1989-10-02 | 1989-10-02 | Automotive audio equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989114801U JP2521662Y2 (en) | 1989-10-02 | 1989-10-02 | Automotive audio equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0356218U true JPH0356218U (en) | 1991-05-30 |
JP2521662Y2 JP2521662Y2 (en) | 1996-12-25 |
Family
ID=31663150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989114801U Expired - Lifetime JP2521662Y2 (en) | 1989-10-02 | 1989-10-02 | Automotive audio equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2521662Y2 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5452453A (en) * | 1977-10-04 | 1979-04-25 | Torio Kk | Tone control circuit |
JPS55125710A (en) * | 1979-03-20 | 1980-09-27 | Trio Kenwood Corp | Tone control circuit |
JPS57195217U (en) * | 1981-06-01 | 1982-12-10 | ||
JPS6114524U (en) * | 1984-06-26 | 1986-01-28 | 日産自動車株式会社 | Vehicle audio equipment |
JPH0177024U (en) * | 1987-11-11 | 1989-05-24 |
-
1989
- 1989-10-02 JP JP1989114801U patent/JP2521662Y2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5452453A (en) * | 1977-10-04 | 1979-04-25 | Torio Kk | Tone control circuit |
JPS55125710A (en) * | 1979-03-20 | 1980-09-27 | Trio Kenwood Corp | Tone control circuit |
JPS57195217U (en) * | 1981-06-01 | 1982-12-10 | ||
JPS6114524U (en) * | 1984-06-26 | 1986-01-28 | 日産自動車株式会社 | Vehicle audio equipment |
JPH0177024U (en) * | 1987-11-11 | 1989-05-24 |
Also Published As
Publication number | Publication date |
---|---|
JP2521662Y2 (en) | 1996-12-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |