JPH04126499A - On-vehicle speaker - Google Patents
On-vehicle speakerInfo
- Publication number
- JPH04126499A JPH04126499A JP2246235A JP24623590A JPH04126499A JP H04126499 A JPH04126499 A JP H04126499A JP 2246235 A JP2246235 A JP 2246235A JP 24623590 A JP24623590 A JP 24623590A JP H04126499 A JPH04126499 A JP H04126499A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- speaker
- vehicle
- instrument panel
- tweeter
- 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
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 230000004807 localization Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Stereophonic System (AREA)
- Stereophonic Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的]
(産業上の利用分野)
この発明は車載スピーカの改良に関し、更に具体的には
自動車の車室内前座席位置、つまりフロント位置に設け
る車載スピーカに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an improvement of a vehicle-mounted speaker, and more specifically to a vehicle-mounted speaker provided at a front seat position, that is, a front position, in a vehicle interior of an automobile.
(従来の技術)
この種の車載スピーカ1は、従来は、第9図に示すよう
に構成されていた。すなわち、ドアミラーを取り付けた
フロントドア2上のドアミラーφコーナカバー2aの内
側と、フロントピラー3およびフロントガラス4に囲ま
れた隅角部に配置され、スピーカの主音軸(破線で示す
)5が車室内前座席位置の乗員6.7に向くように設置
されていた。(Prior Art) This type of vehicle-mounted speaker 1 has conventionally been configured as shown in FIG. 9. That is, the speaker is placed inside the door mirror φ corner cover 2a on the front door 2 to which the door mirror is attached, and in a corner surrounded by the front pillar 3 and windshield 4, so that the main sound axis (indicated by a broken line) 5 of the speaker is It was installed to face passenger 6.7 in the front seat position inside the cabin.
(発明が解決しようとする課題)
ところが、上述した従来の車載スピーカによると、第1
0図に示すようにスピーカ1,1に近い側の前座席位置
の乗員(聴取者)には音圧レベルの大きな直接音が到達
し、乗員の位置に形成される距離対音圧レベルの関係は
第11図に示すように(ただし、距離は音の到達時間で
示す)スピーカに影響され、左右の音圧バランスが悪く
、間接成分は殆んど入らず、臨場感に乏しい音像しか形
成されない欠点があった。(Problem to be solved by the invention) However, according to the above-mentioned conventional car speakers, the first
As shown in Figure 0, direct sound with a high sound pressure level reaches the occupants (listeners) in the front seats near the speakers 1 and 1, and the relationship between the distance and the sound pressure level formed at the occupant's position is As shown in Figure 11 (however, the distance is shown by the arrival time of the sound), it is affected by the speaker, the left and right sound pressure balance is poor, almost no indirect components are included, and only a sound image with a poor sense of presence is formed. There were drawbacks.
そこでこの発明は、このような車載スピーカの欠点を除
去するためになされたものであって、乗員(聴取者)の
耳に入る左右の音圧レベルがバランスし、直接音のみな
らず、間接音も乗員(聴取者)に達し、臨場感を与える
音像が形成される車載スピーカを提供しようとするもの
である。Therefore, this invention was made in order to eliminate such drawbacks of car speakers, and the sound pressure level of the left and right entering the ears of the occupant (listener) is balanced, and it is possible to hear not only direct sound but also indirect sound. The present invention also aims to provide an in-vehicle speaker that can form a sound image that reaches the occupants (listeners) and gives them a sense of presence.
[発明の構成コ
(課題を解決するた手段)
以上の課題を達成するために、請求項(1)の車載スピ
ーカは、左右のフロントピラーの下部にそれぞれ中高音
スピーカを、主音軸がフロントガラスおよびインスツル
メントパネルとほぼ平行に指向させて配置したことを特
徴とする。[Structure of the Invention (Means for Solving the Problem) In order to achieve the above object, the in-vehicle speaker of claim (1) includes medium and high frequency speakers at the lower portions of the left and right front pillars, and the main sound axis is the windshield. and is characterized by being arranged so as to be oriented almost parallel to the instrument panel.
また、請求項(2)の車載スピーカは、中高音スピーカ
の配置位置をインスツルメントパネルの近傍であって、
しかも車室内前座席の乗員の耳の高さとほぼ等しいか又
はそれより低位置に設けたことを特徴とするものである
。Further, the in-vehicle speaker according to claim (2) is arranged such that the middle and high-frequency sound speakers are arranged near the instrument panel,
Moreover, it is characterized in that it is provided at a position approximately equal to or lower than the height of the ears of the occupant in the front seat of the vehicle interior.
また、請求項(3)の車載スピーカは、左右のフロント
ピラーの下部にそれぞれ中高音のスピーカを、主音軸が
フロントガラスおよびインスツルメントパネル面とほぼ
平行に指向させて配置すると共に、フロントドア前方下
部および/又はダッシュサイドにそれぞれ対の中高音ス
ピーカを設けたことを特徴とするものである。Furthermore, the in-vehicle speaker according to claim (3) is provided with medium and high-frequency speakers arranged at the bottom of the left and right front pillars with their main sound axes oriented substantially parallel to the windshield and the instrument panel surface, and at the front door. It is characterized by having a pair of medium and high frequency speakers provided at the front lower part and/or the dash side.
また、請求項(4)の車載スピーカは車室内前座席の聴
取者に近い方のスピーカの音圧レベルと遠い方のスピー
カの音圧レベルが等しくなるように配置したことを特徴
とするものである。Furthermore, the in-vehicle speaker according to claim (4) is arranged so that the sound pressure level of the speaker closer to the listener in the front seat of the vehicle interior is equal to the sound pressure level of the speaker farther from the listener. be.
さらに、請求項(5)の車載スピーカは前記請求項(1
)および(3)記載の車載スピーカのインスツルメント
パネル中央上部に、直接成分と間接成分の合成信号を含
む音声を出力する中高音スピーカを設けたことを特徴と
するものである。Furthermore, the in-vehicle speaker according to claim (5) is provided with the above-mentioned claim (1).
) and (3), the in-vehicle speaker described in (3) is characterized in that a mid-high frequency speaker is provided at the upper center of the instrument panel for outputting a sound including a composite signal of a direct component and an indirect component.
(作用)
したがって、この発明の車載スピーカによれば左右のフ
ロントピラー下部にそれぞれ配置した中高音スピーカか
ら出力される音声の音圧レベルは、スピーカの主音軸が
フロントガラスおよびインスツルメントパネルとほぼ平
行に指向されて配置されているため、スピーカに近い側
の乗員に小さい音圧レベルの音、遠い側の乗員には大き
い音圧レベルの音を出力するため、結果的に左右の音圧
レベルを一致させることができ、理想的なステレオセパ
レーションおよび音像定位を形成できる。(Function) Therefore, according to the in-vehicle speaker of the present invention, the sound pressure level of the sound output from the mid-high frequency speakers placed at the bottom of the left and right front pillars is such that the main sound axis of the speakers is approximately equal to the windshield and instrument panel. Because they are oriented parallel to each other, they output sound with a low sound pressure level to the occupants closest to the speaker, and output sound with a high sound pressure level to the occupants far away, resulting in a difference in the sound pressure level on the left and right sides. This allows ideal stereo separation and sound image localization to be created.
また、中高音スピーカがフロントピラー フロントガラ
スおよびインスツルメントパネル面に囲まれた隅角部に
配置されているため、多くの反射音をバランスよく、車
室内前座位置の乗員へは直接音のみならず間接音か出力
されるから豊かな臨場感を与えることができる。In addition, because the mid-to-high frequency speakers are placed in the corners surrounded by the front pillar, windshield, and instrument panel surface, many reflected sounds are well-balanced, and only direct sound is transmitted to passengers in the front seats of the vehicle. Since only indirect sound is output, it can provide a rich sense of reality.
(実施例)
次に、図面に基づいてこの発明の実施例にがかる車載ス
ピーカについて具体的に説明する。(Example) Next, a vehicle-mounted speaker according to an example of the present invention will be specifically described based on the drawings.
第1図、第2図および第3図はそれぞれ、この発明の第
1の実施例の車載スピーカの配置状態、自動車車室内の
音声の伝達状態を示す横方向(水平方向)要部断面およ
び縦方向(鉛直方向)要部断面を示す。第1図ないし第
3図中、1は中高音スピーカ、2はフロントドア、2a
はドアミラー・コーナカバー 3はフロントピラー、4
はフロントガラス、8はインスツルメントパネルである
。1, 2, and 3 are a lateral (horizontal direction) main part cross section and a vertical cross-section, respectively, showing the arrangement state of the in-vehicle speaker and the transmission state of sound inside the vehicle interior of a first embodiment of the present invention. Direction (vertical direction) shows a cross section of the main part. In Figures 1 to 3, 1 is a medium-high sound speaker, 2 is a front door, and 2a
is the door mirror/corner cover, 3 is the front pillar, 4 is the
8 is the windshield, and 8 is the instrument panel.
この中高音スピーカ1は自動車の左右のフロントピラー
3,3(図示せず)の下部にそれぞれ、中高音スピーカ
1.1の主軸音5,5がそれぞれフロントガラス4方−
向に向き、かつ、インス・ソルメントパネル8およびフ
ロントガラス4面に平行に取り付けられている。This mid-high sound speaker 1 is placed at the bottom of the left and right front pillars 3, 3 (not shown) of the automobile, and the main axis sound 5, 5 of the mid-high sound speaker 1.1 is transmitted from four sides of the windshield, respectively.
and is attached parallel to the instrument solution panel 8 and the windshield 4 surface.
中高音スピーカ1,1を上述のように自動車の前座席位
置に配置すると、それぞれの中高温スピーカ1.1に近
い方の前座席位置の乗員6および7に対して、中高音ス
ピーカ1,1からの距離により第4図に示すような時間
対音圧レベルの関係をもつ直接音および間接音か到達す
るようになる(たたし、第4図中RおよびLはそれぞれ
、遠い方に取り付けた中高音スピーカから乗員に到達す
る音声の時間対音圧レベルの特性図および近い位置に取
り付けた中高音スピーカから乗員に到達する音声の時間
対音圧レベルの特性図を示す。When the mid-high sound speakers 1, 1 are arranged in the front seat positions of a car as described above, the mid-high sound speakers 1, 1 Depending on the distance from the The figure shows a characteristic diagram of the time versus sound pressure level of sound reaching the passenger from a mid-high sound speaker installed in the vehicle, and a characteristic diagram of time vs. sound pressure level of the sound reaching the passenger from a nearby mid-high sound speaker.
第4図の特性図から、中高音スピーカ1.1に近い方に
位置する乗員(聴取者)に到達する音声は、直接成分の
みならず、多数の間接成分が伝達される。また、乗員か
ら遠い距離に位置する中高音スピーカからも直接音のみ
ならず間接音成分か到達し、左、右の中高音スピーカか
ら到達する音圧レベルのバランスか取れ、豊かな臨場感
にあふれた音声か聴取できる。なお、本実施例での中高
音スピーカ1.1を乗務員の耳の高さ近傍に位置するよ
うに左右のフロントピラー3.3に取り付けると直接音
の到達が強くてきる。From the characteristic diagram in FIG. 4, it is clear that not only the direct component but also many indirect components are transmitted to the sound that reaches the occupant (listener) located near the mid-high frequency speaker 1.1. In addition, not only direct sound but also indirect sound components reach the mid-high sound speakers located far from the passengers, and the sound pressure level reaching from the left and right mid-high sound speakers is balanced, creating a rich sense of reality. You can listen to the audio. Note that if the mid-high sound speakers 1.1 in this embodiment are attached to the left and right front pillars 3.3 so as to be located near the height of the ears of the crew members, the direct sound will reach them more strongly.
また、第6図は、この発明の第2の実施例の車載スピー
カを示すもので、左右のフロントピラー3.3下部に第
1の実施例と同し状態に配設すると共に、左右のフロン
トドア2の内側下部にそれぞれコアキシアル(co−a
xial) 2 way スピーカ9.9(ただし、
他方のスピーカ9は図示せず)を配設したものである。FIG. 6 shows an in-vehicle speaker according to a second embodiment of the present invention, which is arranged at the bottom of the left and right front pillars 3.3 in the same manner as in the first embodiment, and at the left and right front Each coaxial (co-a)
xial) 2 way speaker 9.9 (however,
The other speaker 9 is provided with a speaker (not shown).
従来例としてフロントドアの下部にウーハ−フロントピ
アーに対のスピーカを配置した場合、ボーカルなどの声
は、高い声は対のスピーカから出力され、低い声はウー
l\−から出力されるため、音像が上にいったり、下に
いったりするという欠点がある。したがって第8図のよ
うに、ダッシュパネル部の下部および/又はフロントド
ア前方下部に対の中高音スピーカを追加し、ピラーツイ
ータ−との音圧バランスを適度にとることによって、上
下lj向の音像の移動をなくすことかできる。As a conventional example, if a pair of speakers is placed at the bottom of the front door with a woofer and a front pier, high voices such as vocals are output from the pair of speakers, and low voices are output from the woofer. The drawback is that the sound image goes up and down. Therefore, as shown in Fig. 8, by adding a pair of medium and high frequency speakers to the lower part of the dash panel and/or the lower front of the front door, and by maintaining an appropriate sound pressure balance with the pillar tweeter, the sound image in the upper and lower lj directions can be improved. It is possible to eliminate the movement of
さらに、また上記システムに加え、フロントガラス4の
中央上部に中高音スピーカーICを設置し、少なくとも
直接音と間接音の合成した信号を出力するように構成す
ると、これにより、左右のみの中高音スピーカでは困難
たったフロントガラス前方の中央に音像定位をもってく
ることが可能となる。また、上下方向の音像もインスツ
ルメントパネル上面上に左から右までが均一に定位する
ようになる。Furthermore, in addition to the above system, if a mid-high sound speaker IC is installed at the upper center of the windshield 4 and is configured to output at least a signal that is a combination of direct sound and indirect sound, it is possible to use mid-high sound speakers only on the left and right sides. This makes it possible to localize the sound image to the center of the front of the windshield, which is difficult to do with other systems. Moreover, the sound image in the vertical direction is also localized uniformly from left to right on the top surface of the instrument panel.
[発明の効果]
以上の説明から明らかなように、この発明にがかる車載
スピーカは、左右のフロントピラー下部にそれぞれ、主
音軸をフロントガラスおよびインスツルメントパネル面
に平行に指向するように中高音スピーカを対にして配設
するから、スピーカにステレオセパレーションが確保で
き、偏りのない音像定位を形成することができる。[Effects of the Invention] As is clear from the above description, the in-vehicle speaker according to the present invention has mid- and high-frequency sounds at the bottom of the left and right front pillars, respectively, so that the main sound axis is oriented parallel to the windshield and the instrument panel surface. Since the speakers are arranged in pairs, stereo separation can be ensured in the speakers, and unbiased sound image localization can be formed.
また、間接音の発生により豊かな臨場感のある音声を出
力させることかできる。Furthermore, by generating indirect sounds, it is possible to output audio with a rich sense of presence.
第1図はこの発明にかかる第1の実施例の車載スピーカ
の構成を示す車室内の前座席位置の要部斜視図、第2図
および第3図はそれぞれこの発明の第1の実施例の車載
スピーカによる車室内前座席位置における音声の伝達状
態を示す横方向(水平方向)断面図および縦方向(鉛直
方向)断面図、第4図はこの発明にかかる第1の実施例
の車載スピーカにおける対のスピーカによる直接音およ
び間接音の時間対音圧レベルの関係を示す特性図、第5
図はこの発明にかかる第1の実施例の車載スピーカのフ
ロントピラーへの取付は方法を示す要部断面図、第6図
はこの発明にかかる第2の実施例の車載スピーカの構成
を示す前座席位置の要部斜視図、第7図はそれぞれこの
発明の第3の実施例の車載スピーカによる前座席位置に
おける音声の伝達状態を示す横方向断面図、第8図はこ
の発明の第4の実施例にがかる車載スピーカの配置構成
を示す縦方向断面図、第9図および第10図は従来の車
載スピーカの構成を示す前座席位置の要部斜視図および
音声の伝達状態を示す横方向断面図、第11図は第10
図に示す前座席位置の乗員に伝達される直接音・間接音
の時間対音圧レベルの関係を示す特性図である。
1・・・中高音スピーカ
2・・・フロントドア
2a・・・ドアミラー・コーナカバー
3・・・フロントピラー
4・・・フロントガラス
5・・・スピーカの主音軸
8・・・インスツルメントパネル
9・・・フロントドア前方下部に配設されたスピーカ
10・・・ダッシュサイド下部に配設されたスピーカFIG. 1 is a perspective view of a main part of a front seat position in a vehicle interior showing the configuration of a vehicle-mounted speaker according to a first embodiment of the present invention, and FIG. 2 and FIG. A lateral (horizontal) sectional view and a longitudinal (vertical) sectional view showing the transmission state of sound by the in-vehicle speaker at the front seat position in the vehicle interior, FIG. 4 shows the in-vehicle speaker of the first embodiment according to the present invention. Characteristic diagram showing the relationship between time and sound pressure level of direct sound and indirect sound from a pair of speakers, 5th
The figure is a cross-sectional view of a main part showing a method for attaching a car-mounted speaker to a front pillar according to a first embodiment of the invention, and FIG. 6 is a front view showing the configuration of a car-mounted speaker according to a second embodiment of the invention FIG. 7 is a perspective view of a main part of the seat position, FIG. 7 is a transverse cross-sectional view showing the transmission state of sound at the front seat position by the vehicle-mounted speaker according to the third embodiment of the present invention, and FIG. FIGS. 9 and 10 are a vertical sectional view showing the arrangement of a car-mounted speaker according to an embodiment, a perspective view of a main part at the front seat position showing the structure of a conventional car-mounted speaker, and a lateral cross-section showing a sound transmission state. Figure 11 is the 10th
FIG. 3 is a characteristic diagram showing the relationship between time and sound pressure level of direct sound and indirect sound transmitted to the occupant in the front seat position shown in the figure. 1...Mid-high sound speaker 2...Front door 2a...Door mirror/corner cover 3...Front pillar 4...Windshield 5...Speaker tonic axis 8...Instrument panel 9 ...Speaker 10 installed at the bottom of the front of the front door...Speaker installed at the bottom of the dash side
Claims (4)
ピーカを、主音軸がフロントガラスおよびインスツルメ
ントパネルとほぼ平行になるように指向させて配置した
ことを特徴とする車載スピーカ。(1) An in-vehicle speaker characterized in that medium and high frequency speakers are arranged at the bottom of each of the left and right front pillars, with their main sound axes oriented substantially parallel to the windshield and the instrument panel.
の近傍であって、しかも車室内前座席の乗員の耳の高さ
とほぼ等しいか又はそれより低位置に設けたことを特徴
とする請求項(1)記載の車載スピーカ。(2) A claim characterized in that the height of the medium-high sound speaker is provided near the instrument panel and at a position that is approximately equal to or lower than the ear height of a passenger in the front seat of the vehicle interior. (1) The vehicle-mounted speaker described.
ピーカを、主音軸がフロントガラスおよびインスツルメ
ントパネル面にほぼ平行になるように指向させて配置す
ると共に、フロントドア前方下部および又はダッシュサ
イドにそれぞれ対の中高音スピーカを設けたことを特徴
とする車載スピーカ。(3) Mid- and high-frequency speakers are placed at the bottom of the left and right front pillars, with the main sound axes oriented almost parallel to the windshield and instrument panel surface, and placed at the bottom of the front of the front door and/or on the side of the dash. An in-vehicle speaker characterized by each pair of medium and high-frequency speakers.
レベルと遠い方のスピーカの音圧レベルが等しくなるよ
うに配置したことを特徴とする請求項(1)記載の車載
スピーカ。(5)インスツルメントパネル中央上部に、
直接音および間接音の合成音声を出力する中高音スピー
カを設けたことを特徴とする請求項(1)および(3)
記載の車載スピーカ。(4) The in-vehicle speaker according to claim (1), wherein the in-vehicle speaker is arranged so that the sound pressure level of the speaker closer to the listener in the front seat of the vehicle interior is equal to the sound pressure level of the speaker farther away. (5) At the top center of the instrument panel,
Claims (1) and (3) characterized in that a medium-high sound speaker is provided that outputs a synthesized voice of direct sound and indirect sound.
Car speakers listed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2246235A JP2890764B2 (en) | 1990-09-18 | 1990-09-18 | Car speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2246235A JP2890764B2 (en) | 1990-09-18 | 1990-09-18 | Car speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04126499A true JPH04126499A (en) | 1992-04-27 |
JP2890764B2 JP2890764B2 (en) | 1999-05-17 |
Family
ID=17145521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2246235A Expired - Lifetime JP2890764B2 (en) | 1990-09-18 | 1990-09-18 | Car speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2890764B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001218289A (en) * | 1999-12-09 | 2001-08-10 | Bose Corp | Electroacoustic transduction for automobile pillar |
EP1978776A1 (en) | 2007-04-05 | 2008-10-08 | Harman International Industries, Inc. | Directional loudspeaker to reduce direct sound |
US7440578B2 (en) | 2001-05-28 | 2008-10-21 | Mitsubishi Denki Kabushiki Kaisha | Vehicle-mounted three dimensional sound field reproducing silencing unit |
JP2014526187A (en) * | 2011-07-28 | 2014-10-02 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | Transportation machine with side wall speakers |
JP2015089098A (en) * | 2013-09-27 | 2015-05-07 | 株式会社Jvcケンウッド | Speaker device and speaker system |
JP2018509033A (en) * | 2015-01-20 | 2018-03-29 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | Loudspeaker layout for 3D sound reproduction in automobile |
-
1990
- 1990-09-18 JP JP2246235A patent/JP2890764B2/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001218289A (en) * | 1999-12-09 | 2001-08-10 | Bose Corp | Electroacoustic transduction for automobile pillar |
US7440578B2 (en) | 2001-05-28 | 2008-10-21 | Mitsubishi Denki Kabushiki Kaisha | Vehicle-mounted three dimensional sound field reproducing silencing unit |
EP1978776A1 (en) | 2007-04-05 | 2008-10-08 | Harman International Industries, Inc. | Directional loudspeaker to reduce direct sound |
US8121336B2 (en) | 2007-04-05 | 2012-02-21 | Harman International Industries, Incorporated | Directional loudspeaker to reduce direct sound |
JP2014526187A (en) * | 2011-07-28 | 2014-10-02 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | Transportation machine with side wall speakers |
RU2572640C2 (en) * | 2011-07-28 | 2016-01-20 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Vehicle with loudspeakers built in sidewalls |
US9866937B2 (en) | 2011-07-28 | 2018-01-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Vehicle with side wall speakers |
JP2015089098A (en) * | 2013-09-27 | 2015-05-07 | 株式会社Jvcケンウッド | Speaker device and speaker system |
JP2018509033A (en) * | 2015-01-20 | 2018-03-29 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ | Loudspeaker layout for 3D sound reproduction in automobile |
Also Published As
Publication number | Publication date |
---|---|
JP2890764B2 (en) | 1999-05-17 |
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