JPS62294399A - Acoustic reproducing device - Google Patents
Acoustic reproducing deviceInfo
- Publication number
- JPS62294399A JPS62294399A JP13861986A JP13861986A JPS62294399A JP S62294399 A JPS62294399 A JP S62294399A JP 13861986 A JP13861986 A JP 13861986A JP 13861986 A JP13861986 A JP 13861986A JP S62294399 A JPS62294399 A JP S62294399A
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- sound
- rear seat
- signal
- phase
- 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
- 230000000694 effects Effects 0.000 abstract description 11
- 238000013459 approach Methods 0.000 abstract description 2
- 230000004075 alteration Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 230000010363 phase shift Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Stereophonic Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は音響特性を改善する音響再生装置に関するもの
である。Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a sound reproducing device that improves acoustic characteristics.
従来の技術
近年、ホームオーディオでのスピーカ再生については２
スピーカボックスのｐ１生から、４スピーカボックス、
６スビーカボノクスなど、より多数のスピル力再生によ
る臨場感向上など、音場改善の動向が有り、捷た車載オ
ーディオについては、近年のハイファイ化にともなって
、従来の２スピ一カ再生方式から、４スピーカ、６スビ
一カ再生方式となって、前席のみならず後席も含め、均
一なハイファイ音響が求めら７している。Conventional technology In recent years, speaker playback for home audio has been
From speaker box p1 raw, 4 speaker box,
There is a trend to improve the sound field, such as improving the sense of reality by reproducing more spill power, such as 6-speaker Bonox, and with the recent shift to high-fidelity car audio, the conventional 2-speaker playback system has been replaced by 4-speaker playback system. The speaker system uses a 6-segment single speaker system to provide uniform high-fidelity sound not only to the front seats but also to the rear seats.
以下図面を参照しながら、上述した従来の音響再生装置
の一例について説明する。An example of the above-mentioned conventional sound reproduction device will be described below with reference to the drawings.
第１６図←土従来の車載における４スピ一カ方式の一例
を示したもので、車を−１−から見た図とな−）ている
。１，１は前席溝用スピーカ、２，２−前席、３，３は
後席溝用スピーカ、４は後席、６け再生すべき電気信号
を発生する再生機器で、この出力は前席溝用スピーカ１
，１と後席溝用スピーカ３，３につながれ、前席溝用ス
ピーカ１，１に後席溝用スピーカ３，３から再生音が出
る」、うになっている。Fig. 16 shows an example of a conventional four-speaker system mounted on a vehicle, and is a view of the car from -1-. 1, 1 is a speaker for the front seat groove, 2, 2 - front seat, 3, 3 is a speaker for the rear seat groove, 4 is a reproduction device that generates an electrical signal to be reproduced, and this output is for the front seat. Seat groove speaker 1
, 1 are connected to the rear seat groove speakers 3, 3, and the reproduced sound is output from the rear seat groove speakers 3, 3 to the front seat groove speakers 1, 1.
以十のように構成された音響再生装置について、以下そ
の動作について説明する。The operation of the sound reproduction device configured as described above will be explained below.
再生機器から送られてきた信号は、前席溝用スピーカ１
，１から前席２，２へ、後席溝用スピーカ３，３から後
席４へ向けて再生される。その結果、前席２，２と後席
４け、それぞゎ適正な音量でＰｆ生音を聴取することが
でき、前席溝用スピーカ１，１しがない２スピ一カシス
テム時と比べ、前席２，２の適正音量時に、後席４で音
量が多過ぎるなどという不都合が無くなっている１゜発
明が解決しようとする問題点
しかしながら、上記のような構成では、車載での実装条
件から、前席溝用スピーカ１，１、後席溝用スピーカ３
，３ともに十分なスピーカ容積と、密閉性が得らｌ′Ｕ
ず、低域音が再生不十分となるという問題点を有してい
た。The signal sent from the playback device is sent to the front seat groove speaker 1.
, 1 to the front seats 2, 2, and from the rear seat groove speakers 3, 3 to the rear seat 4. As a result, the front seats 2 and 2 and the rear seats 4 can each hear the Pf live sound at an appropriate volume, compared to a 2-speaker system that does not have the front seat groove speakers 1 and 1. 1. Problems to be Solved by the Invention However, with the above configuration, due to the mounting conditions in the vehicle, Seat groove speaker 1, 1, rear seat groove speaker 3
, 3 both provide sufficient speaker volume and sealing performance.
First, there was a problem in that low-frequency sounds were insufficiently reproduced.
そこで、第１７図に示すように６スビーカとし５′・−
・
て、リアトレイ７を利用して、ウーハスピーカ６゜６を
追加して、リアトレイ７のスピーカ容積と密閉性に」：
る低域音の増強を行うことがなされた。Therefore, as shown in FIG.
・Using the rear tray 7, add a woofer speaker 6°6 to increase the speaker volume and airtightness of the rear tray 7.
The aim was to enhance the low-frequency sound.
しかし、この方式により低域音の再生は増強されるが、
一方、前席２，２での適正低域音量に合わせると、後席
４では低域音量が多過ぎるという問題を有していた。However, although this method enhances the reproduction of low-frequency sounds,
On the other hand, there has been a problem in that the rear seat 4 has too much low-frequency sound volume when matched to the appropriate low-range sound volume in the front seats 2, 2.
本発明は上記問題点Ｆ ｇみ、前席での音圧周波数特性
と後席での音圧周波数特性のそろった音響再生装置を提
供するものである。The present invention addresses the above-mentioned problems and provides a sound reproducing device in which the sound pressure frequency characteristics in the front seats and the sound pressure frequency characteristics in the rear seats are the same.
問題点を解決するだめの手段
上記問題点を解決するために本発明の音響再生装置は、
信号の位相変化手段と、再生機器の電気信号を再生する
スピーカと、位相変化手段からの信号を再生するスピー
カを備えた構成としたものである。Means for Solving the Problems In order to solve the above problems, the sound reproduction device of the present invention includes:
The configuration includes a signal phase changing means, a speaker for reproducing the electrical signal of the reproducing device, and a speaker for reproducing the signal from the phase changing means.
作用
本発明は上記した構成において、再生機器の原信号と、
この位相変化信号が音響空間で合成されることにより、
原信号のみの音圧周波数特性を変６・＼ ２
えることができ、またその効果は原信号再生スピーカと
位相変化信号再生スピーカの組合せ方や、配置で変える
ことができるため、各聴取場所における音圧周波数特性
を揃えることが可能となる。Effect The present invention has the above-described configuration, and the original signal of the reproduction device;
By combining this phase change signal in acoustic space,
The sound pressure frequency characteristics of only the original signal can be changed6・＼2, and the effect can be changed by the combination and arrangement of the original signal reproduction speaker and the phase change signal reproduction speaker, so it is possible to change the sound pressure frequency characteristics of only the original signal. It becomes possible to make the sound pressure frequency characteristics uniform.
実施例
以下、本発明の一実施例の音響再生装置について第１図
を参照しながら説明する。第１図において、車載用の音
響再生装置を示し、車を上から見た図を示しており、８
は車の外形を示し、９はハンドル、１０．１０は前席、
１１け後席、１２けカーラジオ、カーテープデツキなど
の再生機器、１３．１３は前席溝用スピーカ、１４．１
４Ｈ：後席溝用スピーカ、１６はウーハスピーカ、１６
は位相変化手段を示している。Embodiment A sound reproducing apparatus according to an embodiment of the present invention will be described below with reference to FIG. In Figure 1, an in-vehicle sound reproduction device is shown, and a view of the car from above is shown.
indicates the exterior of the car, 9 is the steering wheel, 10.10 is the front seat,
11-digit rear seat, 12-digit car radio, car tape deck, etc. playback equipment, 13.13 is a speaker for the front seat groove, 14.1
4H: Rear seat groove speaker, 16 is woofer speaker, 16
indicates phase changing means.
このような構成で、再生すべき音に対応した電気信号を
発生する再生機器１２の信号は、前席溝用スピーカ１３
１１３と後席溝用スピーカ１４゜１４からそれぞれ再生
され、捷だウーハスピーカ１５からは、位相変化手段１
６を通って位相変化された信号が再生される。位相変化
手段１６は、この例では右、左信号をミギシング１−で
位相変化した後、ウーハスピーカ１５１でモノラルて゛
信号を送っている。前席１０、１０で１主に前席溝用ス
ピーカ１３．１３の再生音に、低域音は指向性が少ない
ため、ウーハスピーカ１５からの再生音が加わって聴取
されるため、ウーハスピーカ１６が無い時ｒ比べ、低域
の音圧周波数特性を伸ばすことができ、寸だ後席１１で
も同様に、後席溝用スピーカ１４．１４の再生音にウー
ハスピーカ１５の再生音が加わるため、低域の音圧周波
数特性を伸ばずことができる。１−かじながら、位相変
化手段１６を通さずにそのままウーハスピーカ１５の再
生を行うと、聴取点までの距離が違うため、第２図に示
すようにウーハスピーカ１５の再生レベルＢを前席１０
．１０で前席溝用スピーカ１３゜１３のγｆ圧レしルＡ
に揃う、Ｊ：うにして全体の音圧周波数特性Ｃを平坦化
した結果、後席１１では、後席溝用スピーカ１４．１４
の再生レベルＤに対して、ウーハスピーカ１５の低域音
再生レベルＢが大きくなるため、低域レベルがもち上が
って全体としでＥに示すように平坦な音圧周波数特性と
することができなくなる。しかし、ここでウーハスピー
カ１６の信号を位相変化信号とし、原信弓からの位相の
ずれ惜をクロスオーバ周波数から低域にいくに従がって
＋１８００捷たけ一１８ｏ０に近づくように変化させる
と、後席溝用スピーカ１４゜１４とウーハスピーカ１６
の再生音間の打ち消し効果が犬となって、後席溝用スピ
ーカ１４．１４ノ再生音レベルがクロスオーバ周波数か
ら減衰するにかかわらず、打ち消し効果量も増加するた
め、第３図の斜線部Ａ、Ｂが打ち消しあい、ウーハスピ
ーカ１５の再生レベルＢと後席溝用スピーカ１４．１４
の再生レベルＤとの合成された後席１１の音圧周波数特
性Ｆを平坦とすることができる。With such a configuration, the signal from the reproduction device 12 that generates an electric signal corresponding to the sound to be reproduced is transmitted to the front seat groove speaker 13.
113 and the rear seat groove speaker 14, and the phase changing means 1 is reproduced from the woofer speaker 15
6, the phase-changed signal is reproduced. In this example, the phase changing means 16 changes the phase of the right and left signals by misgiving 1-, and then sends a monaural signal to the woofer speaker 151. In the front seats 10, 10, the sound played from the front seat groove speaker 13.13 is mainly heard with the sound played from the woofer speaker 15 being added to the sound played from the woofer speaker 15 since low frequency sounds have little directionality. Compared to the case without R, the sound pressure frequency characteristics in the low range can be extended, and in the same way even in the rear seat 11, the sound played by the woofer speaker 15 is added to the sound played by the rear seat groove speakers 14 and 14. This allows the sound pressure frequency characteristics in the low range to be maintained without stretching them. 1- If the woofer speaker 15 is used to reproduce sound without passing through the phase changing means 16, the distance to the listening point will be different, so the reproduction level B of the woofer speaker 15 will be changed to
．． 10 and front seat groove speaker 13° 13's γf pressure level A
J: As a result of flattening the overall sound pressure frequency characteristic C, in the rear seat 11, the rear seat groove speaker 14.14
Since the low frequency sound reproduction level B of the woofer speaker 15 increases with respect to the reproduction level D of . However, if we make the signal of the woofer speaker 16 a phase change signal and change the phase shift from the original Nobuyumi so that it approaches +1800 +18o0 as we go from the crossover frequency to the low range, Rear seat groove speaker 14°14 and woofer speaker 16
The cancellation effect between the reproduced sounds becomes a dog, and even though the reproduction sound level of the rear seat groove speaker 14.14 is attenuated from the crossover frequency, the amount of cancellation effect also increases, so the shaded area in Fig. 3 A and B cancel each other out, and the reproduction level B of the woofer speaker 15 and the rear seat groove speaker 14.14
The sound pressure frequency characteristic F of the rear seat 11 synthesized with the reproduction level D can be made flat.
一方前席１０．１０では、ウーハスピーカ１６からの距
離が後席１１での場合に比べ大きいため、ウーハ再生レ
ベルが小となり、前席１０，１０へのウーハ再生音の位
相ずれによる影響−：少なく、また位相も後席時に比べ
変化するので、打ち消し効果を最小と設定することが可
能である。よって前席１０，１０、後席１１ともに、第
３図に示したように平坦な音圧周波数！特性を得ること
ができ、前席後席の均一な音響再生が実現される。On the other hand, in the front seats 10 and 10, the distance from the woofer speaker 16 is greater than that in the rear seat 11, so the woofer reproduction level is small, and the influence of the phase shift of the woofer reproduction sound on the front seats 10 and 10 -: Since the amount of noise is small and the phase also changes compared to when sitting in the rear seat, it is possible to set the cancellation effect to the minimum. Therefore, both the front seats 10, 10 and the rear seat 11 have a flat sound pressure frequency as shown in Fig. 3! This results in uniform sound reproduction from the front seats to the rear seats.
第４図は本発明を乗用車について実施した実測データの
一例で、Ａが前席、Ｂが後席での受聴点における音圧周
波数特性を示している。前席では前席用スピーカ音に、
後席ウーハスピーカ音が加算されるのに対し、後席では
、後席用スピーカ音により、ウーハスピーカ音が減衰さ
れているのが現われており、前席、後席ともに総合の音
圧特性としてバランスのとれたものとなっている。FIG. 4 shows an example of actual measurement data obtained by applying the present invention to a passenger car, in which A shows the sound pressure frequency characteristics at the front seat and B shows the sound pressure frequency characteristics at the listening point in the rear seat. In the front seats, the sound from the front seat speakers
While the rear seat woofer speaker sound is added, in the rear seats, the woofer speaker sound is attenuated by the rear seat speaker sound, and the overall sound pressure characteristics of both the front and rear seats are It's well balanced.
また、ウーハスピーカ１５の取伺は場所に関しては、第
５図に示すように、リアトレイ１７に設置すると、トラ
ンクルームの容積が利用できるため比較的重低音の再生
が容易である。Regarding the location of the woofer speaker 15, as shown in FIG. 5, if it is installed in the rear tray 17, the volume of the trunk room can be utilized, so that it is relatively easy to reproduce deep bass sounds.
しかし、リアトレイ１７がない構造時には、第６図のよ
うにボックススピーカ１８を前席１０の座席下に取り伺
けるか、第７図のように、センターコンソール１９の奥
に付けると良い。However, if the structure does not include the rear tray 17, it is better to place the box speaker 18 under the front seat 10 as shown in FIG. 6, or at the back of the center console 19 as shown in FIG.
特にセンターコンソール１９の奥の場合には、つ１０
・・ ２
一ハスピーカ１６の後部及び左右部が囲オれるため、バ
ッフル効果により能率の良い再生が可能となる。寸だ、
リアトレイ１７に後席溝用スピーカ１４．１４を取付け
る構造の時には、第８図に示すように、後部ドア位ＷＫ
ウーハスピーカ１６を設置すると良い。Especially if it is located at the back of the center console 19,
2. Since the rear and left and right parts of the loudspeaker 16 are surrounded, efficient reproduction is possible due to the baffle effect. It's a size.
When the rear seat groove speaker 14.14 is attached to the rear tray 17, as shown in Fig. 8, the rear door position WK
It is better to install a woofer speaker 16.
次に、位相変化手段１６について第９図にシフタ方式、
第１１図に遅延回路方式の例を示す。Next, regarding the phase changing means 16, a shifter method is shown in FIG.
FIG. 11 shows an example of the delay circuit system.
第９図は、オペアンプ２Ｑと抵抗Ｒ，ＲＧ、ＲＦとコン
デンサＣを用いたＯＲの１次移相回路を用いて、同波数
ｆ、二□で第１０図に示すよう２πＯＲ
に９００、ぞれ」メ後１８００まで遅らすことができ、
ウーハスピーカ１５としての必要な帯域と、イ☆相の遅
れ量を、ＯＲの定数や、捷だ他のフィルタと組み合わせ
ることにより、自由に設定することが可能で、第１１図
に示すように、バッファアンプ２１、低域フィルタ２２
．高域フィルタ２３．シフタ２４．パワーアンプ２５の
回路により、例えば周波数特性を第１２図、位相特性を
第１３図のようにできる。この結果原信号を音響的に混
ぜた場合、ｆ、 より低域では原信号に加算され、ｆ
。Figure 9 shows that using a primary OR phase shift circuit using an operational amplifier 2Q, resistors R, RG, RF, and capacitor C, the wave numbers f and 2□ are 900 and 2πOR as shown in Figure 10, respectively. ” can be delayed until 1800 after
The necessary band for the woofer speaker 15 and the delay amount of the A phase can be freely set by combining the OR constant and other filters, as shown in Fig. 11. Buffer amplifier 21, low-pass filter 22
．． High-pass filter 23. Shifter 24. The circuit of the power amplifier 25 allows the frequency characteristics to be as shown in FIG. 12 and the phase characteristics as shown in FIG. 13, for example. As a result, when the original signal is acoustically mixed, f is added to the original signal in lower frequencies, and f
.
より高域になるに従って、減算効果が犬となる。As you go higher, the subtraction effect becomes more pronounced.
第１４図はバッファアンプ２６．高域フィルタ２７、遅
延回路２８．低域フィルタ２９．パワーアンプ３０より
なる遅延回路方式の例で、必要な帯域に絞り、一定な遅
延ｔをかけることにより、例えばｆ、で９０°遅れどし
た場合、２ｆｏで１８００の遅れとなり、第１５図に比
して、急な移相変化を得ることができる。FIG. 14 shows the buffer amplifier 26. High-pass filter 27, delay circuit 28. Low pass filter 29. In an example of a delay circuit system consisting of a power amplifier 30, if the necessary band is narrowed down and a constant delay t is applied, for example, if f is delayed by 90°, 2fo will be delayed by 1800 degrees, which is compared to Fig. 15. Thus, a sudden phase shift change can be obtained.
以」−のように本実施例によれば位相変化手段１６を用
いて、原信号再生スピーカと位相変化信号再生スピーカ
の再生音を組み合わせることにより各聴取場所に対して
均一な音圧周波特性を実現することができる。As described below, according to this embodiment, the phase change means 16 is used to combine the reproduced sounds of the original signal reproducing speaker and the phase change signal reproducing speaker, thereby achieving uniform sound pressure frequency characteristics for each listening location. It can be realized.
なお実施例では位相変化信号の再生をウー・・スピーカ
１６で行ったが、この考えを他のスピーカに応用１７て
も良い。またウーハスピーカ１６の信号は後席用信号で
なく、前席用の信号からとっても良い。１だ、さらに位
相変化手段１６を電気信号を発生する再生機器１２に、
設けて、原信号のたとえば前席用チャンネルを位相変化
させた信号としておき、これと、実施例であったウーハ
の位相変化信号と紹合わせＪｌば、より効果を高めるこ
とができる。In the embodiment, the phase change signal is reproduced by the Woo speaker 16, but this idea may be applied to other speakers 17. Further, the signal of the woofer speaker 16 may be taken from a signal for the front seat instead of a signal for the rear seat. 1, furthermore, the phase change means 16 is connected to the reproducing device 12 that generates the electric signal,
The effect can be further enhanced by providing a signal in which the phase of the original signal, for example, the front seat channel, is changed, and by combining this with the phase change signal of the woofer in the embodiment.
発明の効果
以」二のように本発明は、位相変化手段と、原信号再生
スピーカと、位相変化信号再生スピーカを設けることに
より、前席、後席ともに均一 な平坦音圧周波数特性を
得ることができ工業的価値の犬なるものである。Effects of the Invention As described in 2., the present invention provides a phase change means, an original signal reproducing speaker, and a phase change signal reproducing speaker to obtain a uniform flat sound pressure frequency characteristic for both the front seats and the rear seats. It is a dog of industrial value.
第１図は本発明の音響再生装置の一実施例を示す概略構
成図、第２図は改善前の前席と後席の音響を乗用車に実
装したときの前席、後席の音圧周波数特性図、第５図〜
第８図は本発明のウーハスピーカの実装例を示す説明図
、第９図は本発明の位相変化手段の一例を示す電気的回
路図、第１０図は同回路の周波数特性図、第１１図は他
の位相１３へ−・
変化手段を示すブロック図、第１２図、第１３図は同周
波数特性と位相特性図、第１４図はさらに他の位相変化
手段を示すブＯ−）り図、第１５図は同位相特性図、第
１６図、第１７図は従来の音響再生装置を示す概略構成
図である。
１０ ・・・前席、１１・・・・・・後席、１２・ ・
・再生機器、１３・・・・・・前席溝用スピーカ、１４
・・・・・・後席溝用スピーカ、１６・・・・・・ウー
ハスピーカ、１６・川・位相変化手段、１７・・・・・
リアトレイ、１８・・・・・・ボックススピーカ、１９
・・・・・・センターコンソール。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
／２再生六器
第２図
伏序
芦１課侭
第５図
第６図
第７図
第８Ｑ
第９図 第１０図
第１１図
第１２図 第１３図
第１４図
弔１５図
第１６０
第１７図
手続補正書（方却
昭和６１年９ 月 ９日Figure 1 is a schematic configuration diagram showing an embodiment of the sound reproducing device of the present invention, and Figure 2 is the sound pressure frequency of the front and rear seats when the acoustics of the front and rear seats before improvement is implemented in a passenger car. Characteristic diagram, Figure 5~
FIG. 8 is an explanatory diagram showing an example of mounting the woofer speaker of the present invention, FIG. 9 is an electrical circuit diagram showing an example of the phase changing means of the present invention, FIG. 10 is a frequency characteristic diagram of the same circuit, and FIG. 11 to another phase 13-- A block diagram showing the changing means, FIGS. 12 and 13 are frequency characteristic and phase characteristic diagrams, and FIG. 14 is a block diagram showing another phase changing means. FIG. 15 is an in-phase characteristic diagram, and FIGS. 16 and 17 are schematic configuration diagrams showing a conventional sound reproduction device. 10...Front seat, 11...Rear seat, 12...
・Reproduction equipment, 13...Front seat groove speaker, 14
... Rear seat groove speaker, 16 ... Woofer speaker, 16 / phase change means, 17 ...
Rear tray, 18...Box speaker, 19
······center console. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure/2 Reproduction Sixth Figure 2 Figure 1 Lesson 5 Figure 6 Figure 7 Figure 8Q Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Funeral Figure 15 Figure 160 Figure 17 Procedural Amendment (September 9, 1986)
Claims (11)
機器と、この再生機器の信号の位相を変化させる位相変
化手段と、再生機器の電気信号を再生するスピーカと、
および位相変化手段からの信号を再生するスピーカとか
ら構成される音響再生装置。(1) A reproduction device that generates an electrical signal corresponding to the sound to be reproduced, a phase changing means that changes the phase of the signal of the reproduction device, and a speaker that reproduces the electrical signal of the reproduction device;
and a speaker for reproducing the signal from the phase changing means.
第１項記載の音響再生装置。(2) The sound reproducing device according to claim 1, wherein the phase changing means is a phase shifter.
１項記載の音響再生装置。(3) The sound reproduction device according to claim 1, wherein the phase changing means is a delay circuit.
ハスピーカを用いた特許請求の範囲第１項記載の音響再
生装置。(4) The sound reproduction device according to claim 1, which uses a front seat speaker, a rear seat speaker, and a woofer speaker.
特許請求の範囲第４項記載の音響再生装置。(5) The sound reproduction device according to claim 4, wherein the woofer speaker is mounted in the rear tray.
請求の範囲第４項記載の音響再生装置。(6) The sound reproduction device according to claim 4, wherein the woofer speaker is mounted under the seat.
ルの奥にある特許請求の範囲第４項記載の音響再生装置
。(7) The sound reproducing device according to claim 4, wherein the woofer speaker is mounted at the back of the center console.
許請求の範囲第４項記載の音響再生装置。(8) The sound reproducing device according to claim 4, wherein the woofer speaker is mounted at a rear seat door.
器からの信号を再生し、ウーハスピーカから位相変化信
号を再生し、前席と後席の低音域の音圧を揃うように構
成した特許請求の範囲第４項記載の音響再生装置。(9) The front seat speaker and the rear seat speaker play the signal from the playback device, and the woofer speaker plays a phase change signal, so that the sound pressure in the bass range of the front seat and the rear seat are equalized. A sound reproduction device according to claim 4.
相変化手段を用する特許請求の範囲第１項記載の音響再
生装置。(10) The sound reproducing device according to claim 1, wherein the reproducing device uses phase changing means for at least one channel thereof.
、再生機器の信号を再生するスピーカの再生周波数カッ
ト特性と関連づけた特許請求の範囲第１項記載の音響再
生装置。(11) The sound reproducing device according to claim 1, wherein the change in phase with respect to frequency of the phase changing means is associated with the reproduction frequency cut characteristic of a speaker that reproduces a signal of a reproduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61138619A JPH0822112B2 (en) | 1986-06-13 | 1986-06-13 | Sound reproduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61138619A JPH0822112B2 (en) | 1986-06-13 | 1986-06-13 | Sound reproduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62294399A true JPS62294399A (en) | 1987-12-21 |
| JPH0822112B2 JPH0822112B2 (en) | 1996-03-04 |
Family
ID=15226307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61138619A Expired - Lifetime JPH0822112B2 (en) | 1986-06-13 | 1986-06-13 | Sound reproduction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822112B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5494001A (en) * | 1978-01-06 | 1979-07-25 | Hitachi Ltd | Car stereo |
| JPS55105500A (en) * | 1979-02-06 | 1980-08-13 | Nissan Motor Co Ltd | Acoustic device for car |
| JPS5722480A (en) * | 1980-07-16 | 1982-02-05 | Matsushita Electric Ind Co Ltd | Coil driving type gas proportional control valve |
| JPS5969594U (en) * | 1982-10-29 | 1984-05-11 | トヨタ自動車株式会社 | Vehicle speaker device |
| JPS61230600A (en) * | 1985-04-05 | 1986-10-14 | Nissan Motor Co Ltd | Acoustic device |
-
1986
- 1986-06-13 JP JP61138619A patent/JPH0822112B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5494001A (en) * | 1978-01-06 | 1979-07-25 | Hitachi Ltd | Car stereo |
| JPS55105500A (en) * | 1979-02-06 | 1980-08-13 | Nissan Motor Co Ltd | Acoustic device for car |
| JPS5722480A (en) * | 1980-07-16 | 1982-02-05 | Matsushita Electric Ind Co Ltd | Coil driving type gas proportional control valve |
| JPS5969594U (en) * | 1982-10-29 | 1984-05-11 | トヨタ自動車株式会社 | Vehicle speaker device |
| JPS61230600A (en) * | 1985-04-05 | 1986-10-14 | Nissan Motor Co Ltd | Acoustic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0822112B2 (en) | 1996-03-04 |
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