JPH0371287B2 - - Google Patents
Info
- Publication number
- JPH0371287B2 JPH0371287B2 JP60039456A JP3945685A JPH0371287B2 JP H0371287 B2 JPH0371287 B2 JP H0371287B2 JP 60039456 A JP60039456 A JP 60039456A JP 3945685 A JP3945685 A JP 3945685A JP H0371287 B2 JPH0371287 B2 JP H0371287B2
- Authority
- JP
- Japan
- Prior art keywords
- sound field
- audio
- level setting
- seat
- fastening
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 12
- 230000005236 sound signal Effects 0.000 claims description 10
- 230000004807 localization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0005—Dashboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0019—Side or rear panels
- B60R2011/0024—Rear shelves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Stereophonic System (AREA)
Description
【発明の詳細な説明】
技術分野
本発明は輸送機器に機載されたオーデイオ装置
の複数チヤンネルを経た出力音によつて得られる
再生音場を補正する音場補正装置に関する。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a sound field correction device for correcting a reproduced sound field obtained by output sound through a plurality of channels of an audio device mounted on a transportation device.
背景技術
車両等の輸送機器内において、オーデイオ装置
によつて音楽等を聴取する場合、搭乗者の着席位
置が定まつているので全ての搭乗者がオーデイオ
装置からの出力音を良好な状態で聴取することは
難しい。例えば、車載オーデイオ装置においては
再生音場の定位を任意に変化可能にした音場補正
装置が設けられていることがある。しかしなが
ら、このような音場補正装置においては通常、運
転席近傍に再生音場定位を変化させる調整レバー
が設けられているので運転席にてその調整レバー
を操作しても搭乗車全てが良好に音楽等を聴取で
きる再生音場を得ることは非常に困難であつた。BACKGROUND TECHNOLOGY When listening to music, etc. using an audio device in a transportation device such as a vehicle, all passengers can listen to the output sound from the audio device in good condition because the seating positions of the passengers are fixed. It's difficult to do. For example, in-vehicle audio devices are sometimes provided with a sound field correction device that can arbitrarily change the localization of a reproduced sound field. However, in such sound field correction devices, there is usually an adjustment lever near the driver's seat that changes the localization of the reproduced sound field, so even if you operate the adjustment lever from the driver's seat, everything on board will be in good condition. It has been extremely difficult to obtain a reproduction sound field in which music and the like can be heard.
発明の概要
そこで、本発明の目的は搭乗者全てがオーデイ
オ装置からの出力音を比較的良好に聴取可能な再
生音場を得ることができる音場補正装置を提供す
ることである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sound field correction device that can obtain a reproduced sound field in which all passengers can relatively well hear output sounds from an audio device.
本発明の音場補正装置は座席毎に設けられてそ
の座席のシートベルトの締結を検出する締結検出
手段と、締結検出手段各々の出力状態に応じたレ
ベル設定信号を発生するレベル設定手段と、オー
デイオ装置において少なくとも１チヤンネルのオ
ーデイオ信号のスピーカへの供給ラインに設けら
れそのオーデイオ信号をレベル設定信号に応じて
補正する信号補正手段とからなることを特徴とし
ている。 The sound field correction device of the present invention includes a fastening detecting means provided for each seat and detecting the fastening of the seat belt of that seat, a level setting means generating a level setting signal according to the output state of each fastening detecting means, The audio device is characterized in that it comprises a signal correction means that is provided in a supply line of at least one channel of audio signals to a speaker and corrects the audio signals in accordance with a level setting signal.
実施例
以下、本発明の実施例を図面を参照しつつ説明
する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明による音場補正装置を用いたオ
ーデイオ装置が搭載された自動車内を示してい
る。この自動車においては、運転席１、助手席２
及び左右の後部席３，４の４座席が設けられてい
る。各座席１ないし４にはシートベルト９ないし
１２が備えられており、そのシートベルト９ない
し１２の締結用コネクタ部９ａないし１２ａには
締結時にオフとなる締結検出スイツチ１３ないし
１６が設けられている。また運転席１及び助手席
２前方のフロントトレイ１７の左右にはフロント
スピーカ１８，１９が、後部席３，４後方のリア
トレイ２０の左右にはリアスピーカ２１，２２が
各々設けられている。 FIG. 1 shows the interior of an automobile in which an audio device using a sound field correction device according to the present invention is installed. In this car, there are 1 driver's seat and 2 passenger seats.
There are four seats: left and right rear seats 3 and 4. Each of the seats 1 to 4 is equipped with a seat belt 9 to 12, and the fastening connector portions 9a to 12a of the seat belts 9 to 12 are provided with fastening detection switches 13 to 16 that turn off when the seat belts are fastened. . Further, front speakers 18 and 19 are provided on the left and right sides of the front tray 17 in front of the driver's seat 1 and passenger seat 2, and rear speakers 21 and 22 are provided on the left and right sides of the rear tray 20 behind the rear seats 3 and 4, respectively.
一方、本発明による音場補正装置においては、
第２図に示すように締結検出スイツチ１３ないし
１６の一端はアースされ、他端には電圧VCCが抵
抗２３ないし２６を介して各々供給される。また
締結検出スイツチ１３ないし１６の他端にはレベ
ル設定回路２７が接続されている。レベル設定回
路２７は４つの出力端を有し、締結検出スイツチ
１３ないし１６からの各入力レベルに応じて出力
端毎に予め定められた値をデイジタル信号として
各々出力する。レベル設定回路２７の出力端各々
はＤ／Ａ（デイジタル／アナログ）変換器２８な
いし３１のうち１つを介してVCA（電圧制御増幅
器）３２ないし３５のうちの１つの制御端に接続
されている。VCA３２にはオーデイオ装置にお
いて４チヤンネルのオーデイオ信号のうち左フロ
ントチヤンネルのオデイオ信号が、VCA３３に
は右フロントチヤンネルのオーデイオ信号が、
VCA３４には左リアチアンネルのオーデイオ信
号が、またVCA３５には右リアチヤンネルのオ
ーデイオ信号が供給される。VCA３２ないし３
５の出力端各々はオーデイオ装置のパワーアンプ
３６ないし３９のうちの１つを介して対応するス
ピーカ１８，１９，２１又は２２が接続されてい
る。 On the other hand, in the sound field correction device according to the present invention,
As shown in FIG. 2, one end of the engagement detection switches 13 to 16 is grounded, and the voltage V CC is supplied to the other end through resistors 23 to 26, respectively. Further, a level setting circuit 27 is connected to the other ends of the engagement detection switches 13 to 16. The level setting circuit 27 has four output terminals, and each output terminal outputs a predetermined value as a digital signal according to each input level from the engagement detection switches 13 to 16. Each output terminal of the level setting circuit 27 is connected to a control terminal of one of VCAs (voltage controlled amplifiers) 32 to 35 via one of D/A (digital/analog) converters 28 to 31. . The VCA32 receives the left front channel audio signal of the four channels of audio signals in the audio device, and the VCA33 receives the right front channel audio signal.
The left rear channel audio signal is supplied to the VCA 34, and the right rear channel audio signal is supplied to the VCA 35. VCA32 or 3
Each of the output terminals 5 is connected to a corresponding speaker 18, 19, 21 or 22 via one of the power amplifiers 36 to 39 of the audio device.
かかる構成の本発明の音場補正装置において
は、シートベルト９ないし１２のいずれかがコレ
クタ部９ａないし１２ａにて締結されると締結さ
れたシートベルトの締結検出スイツチ（13ないし
16）がオンからオフとなり、そのスイツチの他端
レベルが低レベルから高レベルに反転する。レベ
ル設定回路２７は搭乗者数及びその着席位置によ
つて定められた４チヤンネル各々の設定レベルを
表わす複数のレベルデータがデータマツプとして
予め書き込まれたROMを内蔵しており、締結検
出スイツチ１３ないし１６からの各入力レベルに
応じたレベルデータをデータマツプから検索し、
その検索したレベルデータをチアンネル毎に読み
出して対応するチヤンネルのＤ／Ａ変換器２８な
いし３１にレベル設定信号として供給する。この
各レベル設定信号に応じた電圧がＤ／Ａ変換器２
８ないし３１から対応するVCA３２ないし３５
の制御端に供給されるのでVCA３２ないし３５
各々の利得はレベル設定回路２７において検索さ
れたレベルデータが表わす各チヤンネルの設定レ
ベルに等しくなる。よつて、パワーアンプ３６な
いし３９の各利得は同一レベルであるのでスピー
カ１８，１９，２１，２２の出力音によつて得ら
れる再生音場の定位はVCA３２ないし３５の各
利得に応じて定まるのである。すなわち、締結検
出スイツチ１３ないし１６によつて検出された搭
乗者の着席位置において全ての搭乗者がスピーカ
１８，１９，２１，２２の出力音が良好に聴取で
きるように再生音場の定位が定まるのである。 In the sound field correction device of the present invention having such a configuration, when any one of the seat belts 9 to 12 is fastened at the collector portions 9a to 12a, the fastening detection switch (13 to 13) of the fastened seat belt is activated.
16) is turned from on to off, and the level at the other end of the switch is reversed from low to high. The level setting circuit 27 has a built-in ROM in which a plurality of level data representing the setting levels of each of the four channels determined according to the number of passengers and their seating positions is written in advance as a data map, and the engagement detection switches 13 to 16 Search the data map for level data corresponding to each input level from
The retrieved level data is read out for each channel and supplied as a level setting signal to the D/A converters 28 to 31 of the corresponding channel. The voltage corresponding to each level setting signal is applied to the D/A converter 2.
8 to 31 to corresponding VCA32 to 35
Since it is supplied to the control end of VCA 32 to 35
Each gain becomes equal to the setting level of each channel represented by the level data retrieved by the level setting circuit 27. Therefore, since the gains of the power amplifiers 36 to 39 are at the same level, the localization of the reproduced sound field obtained by the output sounds of the speakers 18, 19, 21, and 22 is determined according to the gains of the VCAs 32 to 35. be. That is, the localization of the playback sound field is determined so that all passengers can clearly hear the output sounds of the speakers 18, 19, 21, and 22 at the seated positions of the passengers detected by the engagement detection switches 13 to 16. It is.
なお、上記した本発明の実施例においては、オ
ーデイオ装置が自動的に搭載された場合について
説明したが、これに限らず、例えば飛行機等の輸
送機器にオーデイオ装置が搭載された場合にも本
発明を適用することができるのである。 In the above-described embodiments of the present invention, the case where the audio device is automatically installed has been described, but the present invention is not limited to this, and the present invention can also be applied when the audio device is installed in transportation equipment such as an airplane. can be applied.
発明の効果
以上の如く、本発明の音場補正装置において
は、座席毎にシートベルトの締結が検出され、各
シートベルトの締結の検出結果に応じたレベル設
定信号が発生されそのレベル設定信号に応じてオ
ーデイオ装置のオーデイオ信号が補正される。よ
つて、各シートベルトの締結の検出結果から搭乗
者数及びその着席位置が判断されているので調整
レバー等を操作することなく搭乗者全てが良好に
音楽等を聴取し得る再生音場にすることができ
る。またシートベルトを締結しなければ良好な再
生音場が得られないないのでシートベルトの締結
を促すことになり、それにより運転中の安全性の
向上を図ることができるのである。Effects of the Invention As described above, in the sound field correction device of the present invention, the fastening of the seat belt is detected for each seat, and a level setting signal is generated according to the detection result of the fastening of each seat belt. The audio signal of the audio device is corrected accordingly. Therefore, since the number of passengers and their seating positions are determined from the detection results of the fastening of each seat belt, the reproduction sound field is created in which all passengers can listen to music etc. well without operating adjustment levers etc. be able to. In addition, since a good reproduction sound field cannot be obtained unless the seat belt is fastened, the driver is encouraged to fasten the seat belt, thereby improving safety while driving.
第１図は本発明による音場補正装置を用いたオ
ーデイオ装置が搭載された自動車内を示す図、第
２図は本発明の実施例を示すブロツク図である。
主要部分の符号の説明、１ないし４……座席、
９ないし１２……シートベルト、１３ないし１６
……締結検出スイツチ、１８，１９，２１，２２
……スピーカ。
FIG. 1 is a diagram showing the interior of an automobile equipped with an audio device using a sound field correction device according to the present invention, and FIG. 2 is a block diagram showing an embodiment of the present invention. Explanation of the symbols of the main parts, 1 to 4...seats,
9 to 12...Seat belt, 13 to 16
...Fastening detection switch, 18, 19, 21, 22
...Speaker.
Claims (1)
る輸送機器内において機載オーデイオ装置の複数
チヤンネルを経た出力音によつて得られる再生音
場を補正する音場補正装置であつて、前記座席毎
に設けられてその座席のシートベルトの締結を検
出する締結検出手段と、前記締結検出手段各々の
出力状態に応じたレベル設定信号を発生するレベ
ル設定手段と、前記オーデイオ装置において少な
くとも１チヤンネルのオーデイオ信号のスピーカ
への供給ラインに設けられそのオーデイオ信号を
前記レベル設定信号に応じて補正する信号補正手
段とからなることを特徴とする音場補正装置。1. A sound field correction device for correcting a reproduced sound field obtained by output sound through multiple channels of an on-board audio device in a transportation device having a plurality of seats each equipped with a seat belt, the device comprising: fastening detection means for detecting fastening of the seat belt of the seat; level setting means for generating a level setting signal according to the output state of each of the fastening detection means; and at least one channel of audio signals in the audio device. 1. A sound field correction device comprising: signal correction means provided in a supply line to a speaker for correcting the audio signal according to the level setting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039456A JPS61200046A (en) | 1985-02-28 | 1985-02-28 | Sound field corrector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60039456A JPS61200046A (en) | 1985-02-28 | 1985-02-28 | Sound field corrector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61200046A JPS61200046A (en) | 1986-09-04 |
| JPH0371287B2 true JPH0371287B2 (en) | 1991-11-12 |
Family
ID=12553545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60039456A Granted JPS61200046A (en) | 1985-02-28 | 1985-02-28 | Sound field corrector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61200046A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62291300A (en) * | 1986-06-10 | 1987-12-18 | Alpine Electron Inc | On-vehicle acoustic equipment |
| JPS6334000A (en) * | 1986-07-28 | 1988-02-13 | Nec Ic Microcomput Syst Ltd | Acoustic equipment |
-
1985
- 1985-02-28 JP JP60039456A patent/JPS61200046A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61200046A (en) | 1986-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |