JPH0125034Y2 - - Google Patents

Info

Publication number
JPH0125034Y2
JPH0125034Y2 JP1981091648U JP9164881U JPH0125034Y2 JP H0125034 Y2 JPH0125034 Y2 JP H0125034Y2 JP 1981091648 U JP1981091648 U JP 1981091648U JP 9164881 U JP9164881 U JP 9164881U JP H0125034 Y2 JPH0125034 Y2 JP H0125034Y2
Authority
JP
Japan
Prior art keywords
speaker
sound
buff
plate
full plate
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
Application number
JP1981091648U
Other languages
Japanese (ja)
Other versions
JPS57204785U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1981091648U priority Critical patent/JPH0125034Y2/ja
Publication of JPS57204785U publication Critical patent/JPS57204785U/ja
Application granted granted Critical
Publication of JPH0125034Y2 publication Critical patent/JPH0125034Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Description

【考案の詳細な説明】 本考案は、前面側と後面側の両方に音を放射で
きるようにしたスピーカシステムに関するもので
ある。
[Detailed Description of the Invention] The present invention relates to a speaker system that can radiate sound to both the front side and the rear side.

従来一般のスピーカシステムは殆んどが後面に
音を放射することを考えて作られていないが、な
かには、例えば静電形スピーカやハイル形スピー
カ、或は動電形スピーカを使用した後面開放キヤ
ビネツト入りシステムなどのように、後面に音を
放射できる構成のものもある。しかし、これらは
構造上やむを得ず後面にも音を放射しなければな
らず、キヤビネツトの後面を密閉すると性能上重
大な欠点を生じるものである。
Most conventional speaker systems are not made with the idea of emitting sound to the rear, but some are made with open-back cabinets that use, for example, electrostatic speakers, heil speakers, or electrodynamic speakers. There are also configurations that can emit sound to the rear, such as in-line systems. However, due to their structure, these devices have to radiate sound to the rear surface, and sealing the rear surface of the cabinet causes a serious drawback in terms of performance.

ところで、上述したスピーカシステムと全く異
なる考えに基き、後面に放射する音を積極的に利
用し、後面からの音を重要視した第1図に示すよ
うなスピーカシステムが発表されている。このシ
ステムは、図示のように前面バツフル板1と、一
定角度で会合した2枚の後面バツフル板2とにそ
れぞれスピーカユニツト3を取付けた構造になつ
ていて、前面側及び後面側スピーカからそれぞれ
約10%及び90%の固定された割合で音を放射する
様になつている。
By the way, a speaker system as shown in FIG. 1 has been announced, based on a completely different concept from the above-mentioned speaker system, which actively utilizes the sound radiated to the rear surface and places importance on the sound from the rear surface. As shown in the figure, this system has a structure in which a speaker unit 3 is attached to each of a front baffle plate 1 and two rear buffle plates 2 that meet at a certain angle. It is designed to emit sound at a fixed rate of 10% and 90%.

このシステムでは、第2図に示すように、背後
に反射性の壁4を必要とするが、聴取者に対する
サービスエリアが通常の前面のみに音を放射する
ものに比べ非常に広く、聴取位置によらず均一な
音量、音質で聴くことができる。ところが、この
システムでは逆に、図のように音源の位置が不明
確ということがあり、ピンホール的な音像定位が
得られないという不満が生じる。
As shown in Figure 2, this system requires a reflective wall 4 behind it, but the service area for the listener is much wider than that of a conventional system that radiates sound only to the front. You can listen with uniform volume and sound quality regardless of the noise. However, with this system, the position of the sound source may be unclear, as shown in the figure, leading to dissatisfaction with the inability to obtain pinhole-like sound image localization.

このため、音楽ジヤンルによつても異なるが、
このシステムは一般的には、ホールの残響感が必
要とされるクラシツク再生などでは非常に良い効
果があるが、楽器の1つ1つの演奏位置が分離し
て明確に解ることが好ましいジヤズなどのジヤン
ルには不向な場合がある。
For this reason, although it varies depending on the music genre,
This system is generally very effective for classical music playback where a sense of hall reverberation is required, but for music such as JAZZ where it is preferable to separate and clearly understand the playing position of each instrument. There are times when it is not suitable for Jiyanru.

更に、日本の家屋はその構造上和室においては
反射或は響きが少ないことが多く、逆に洋室は容
積が小さいことに起因して響きが過多になること
が多いため、日本の家屋には不向きなシステムで
あつた。
Furthermore, due to the structure of Japanese houses, Japanese-style rooms often have little reflection or resonance, while Western-style rooms tend to have too much resonance due to their small volume, so they are not suitable for Japanese houses. It was a great system.

本考案は上述した点に鑑みてなされたもので、
その目的とするところは、再生しようとする音楽
ジヤンル、聴取者の好み、聴取場所(室)などの
条件に合せて前面放射音と後面放射音との強さの
割合を簡単に可変できる構成としたスピーカシス
テムを提供することにある。
This invention was made in view of the above points,
The purpose of this is to create a structure that allows the ratio of the intensity of front- and rear-radiated sounds to be easily varied according to conditions such as the music genre being played, the listener's preferences, and the listening location (room). Our goal is to provide a speaker system with

以下本考案を第3図乃至第10図に示す実施例
について説明するが、図は全てステレオの片チヤ
ンネルについてのみ示す。
The present invention will be described below with reference to the embodiments shown in FIGS. 3 to 10, all of which show only one stereo channel.

第3図a及びbは本考案によるスピーカシステ
ムの正面図及び側断面図をそれぞれ示し、図中1
0はスピーカシステムのキヤビネツトで、このキ
ヤビネツト10は、前面バツフル板10a、この
前面バツフル板10aに平行な平行後面バツフル
板10b、及びこの平行後面バツフル板10bに
一定角度をもつて会合された傾斜後面バツフル板
10cを有する。上記前面バツフル板10aに
は、前面側スピーカとして低音用スピーカ11a
及び高音用スピーカ12aが、傾斜後面バツフル
板10cには、後面側スピーカとして低音用スピ
ーカ11c及び高音用スピーカ12cがそれぞれ
取付けられている。キヤビネツト10内にはま
た、前面側スピーカ11a,12cと後面側スピ
ーカ11c,12cへの入力の割合を変えるバラ
ンサ13が収容され、このバランサ13の調整部
13aが後面バツフル板10bに突設されてい
る。
Figures 3a and 3b show a front view and a side sectional view of the speaker system according to the present invention, respectively.
0 is a cabinet of a speaker system, and this cabinet 10 includes a front baffle plate 10a, a parallel rear buffle plate 10b parallel to the front buffle plate 10a, and an inclined rear face that meets the parallel rear buffle plate 10b at a certain angle. It has a full plate 10c. The front side full board 10a has a bass speaker 11a as a front side speaker.
A bass speaker 11c and a treble speaker 12c are respectively attached to the inclined rear face full plate 10c as rear side speakers. Also accommodated within the cabinet 10 is a balancer 13 that changes the ratio of input to the front side speakers 11a, 12c and the rear side speakers 11c, 12c, and an adjustment portion 13a of this balancer 13 is provided protruding from the rear bumper plate 10b. There is.

第4図乃至第6図は第3図に示したスピーカシ
ステムの置き方を示す。第4図a及びbにおいて
は、スピーカシステムのキヤビネツト10は縦置
きにされ、後面から放射される音波は背面の壁1
4aに反射し、更に天井壁14bに反射した後聴
取者15の元に到達するが、この反射波は左右方
向へは余り広がらず、従つて音源位置は上下方向
に広がり、左右方向では比較的良い定位が得られ
る。なお、14cは家屋の側面の壁、16はスピ
ーカシステムの置台である。
4 to 6 show how the speaker system shown in FIG. 3 is placed. In FIGS. 4a and 4b, the speaker system cabinet 10 is placed vertically, and the sound waves radiated from the rear surface are transmitted through the rear wall 1.
4a and then the ceiling wall 14b before reaching the listener 15. However, this reflected wave does not spread much in the left and right direction, so the sound source position spreads in the vertical direction and is relatively small in the left and right directions. Good localization can be obtained. Note that 14c is a side wall of the house, and 16 is a stand for a speaker system.

第5図a及びbでは、キヤビネツト10は置台
16上に横置きにされていて、第4図の場合とは
逆の効果が得られる。すなわち、音波は左右方向
には大きく広がり、上下方向には余り広がらな
い。そして、この例では後面傾斜バツフル板を外
側に向けているが、これと逆に内側に向けた場合
には、上下方向の広がりは第5図と同じ程度であ
るが、左右方向へは第6図に示すように両スピー
カ間に音波が分布して定位し、この場合は聴取場
所によらず殆んど音源位置が変化しない効果が得
られる。
In FIGS. 5a and 5b, the cabinet 10 is placed horizontally on the stand 16, and the effect is opposite to that in FIG. 4. In other words, sound waves spread widely in the horizontal direction, but not so much in the vertical direction. In this example, the rear inclined wide plate faces outward, but if it is turned inward in the opposite direction, the spread in the vertical direction is about the same as that shown in Figure 5, but the width in the left and right direction is 6. As shown in the figure, the sound waves are distributed and localized between both speakers, and in this case, the effect is obtained that the sound source position hardly changes regardless of the listening location.

本考案のシステムを用いて後面側から放射する
音波をより広範囲に拡散させて積極的に無定位状
態、すなわち空中に音を充満させて独特の音場を
作り出すには、第7図に示すように、後面傾斜バ
ツフル板10cに近に側を頂とする錐体を基本形
として木材の組合せ、合成樹脂による成形体、金
属、ガラス、その他により構成した反射器27を
後面バツフル板10cに着脱自在或は固定的に取
付ければよい。このように取付けた反射器27は
その位置が固定であつてもよいし、第8図に示す
ように、その中心軸27aを回転又は傾斜可能に
すればより一層の拡散方向、範囲の制御がし易く
なる。
In order to use the system of this invention to spread the sound waves emitted from the rear side over a wider area and actively create a non-locating state, that is, to fill the air with sound and create a unique sound field, as shown in Figure 7. In addition, a reflector 27, which has a basic shape of a cone with its apex on the side near the rear slanted full plate 10c, and is constructed of a combination of wood, a synthetic resin molded body, metal, glass, etc., can be freely attached to and detached from the rear slanted full plate 10c. should be installed permanently. The position of the reflector 27 mounted in this manner may be fixed, or if the central axis 27a is rotatable or tiltable as shown in FIG. 8, the direction and range of diffusion can be further controlled. It becomes easier to do.

更にまた、大きなホールで演奏を聴いている状
態と類似の聴感を得るためには、第9図及び第1
0図に示すような電気回路を使用し、大きなホー
ルでの反射音が聴取者に倒達するまでの時間的遅
れを再生時に付加するようにしてもよい。第9図
において、30は例えばBBD(バケツト・ブリツ
ジ・デバイス)素子などを用いた遅延回路、31
及び32はパワーアンプ、33はバランスコント
ロールで、遅延回路30を通じて後面側スピーカ
11c,12cをパワーアンプ32にて駆動して
いる。なお、バランスコントロール33は負荷が
スピーカでないので、上述のバランサ13と同じ
構成でないが、通常のプリメインアンプなどに用
いられているバランスコントロール用ボリユーム
を用いることができる。第10図においては、3
0a,30b及び30c…は遅延時間の異なる遅
延回路、34はミキシング回路で、遅延回路30
a,30b及び30cを通じ、かつそれぞれレベ
ルを可変してミキシング回路34でミキシングす
ることにより第9図の例よりも効果が一層高めら
れる。
Furthermore, in order to obtain a hearing sensation similar to that of listening to a performance in a large hall, it is necessary to
It is also possible to use an electric circuit as shown in Figure 0 to add a time delay during playback until the reflected sound from the large hall reaches the listener. In FIG. 9, 30 is a delay circuit using, for example, a BBD (bucket bridge device) element, and 31
32 is a power amplifier, 33 is a balance control, and the power amplifier 32 drives the rear speakers 11c and 12c through a delay circuit 30. Note that the balance control 33 does not have the same configuration as the balancer 13 described above since the load is not a speaker, but a balance control volume used in a normal integrated amplifier or the like can be used. In Figure 10, 3
0a, 30b, 30c... are delay circuits with different delay times, 34 is a mixing circuit, and the delay circuit 30
A, 30b, and 30c, and the mixing circuit 34 mixes the signals at varying levels, so that the effect is further enhanced than in the example of FIG. 9.

本考案は上述したように、前面バツフル板と、
該前面バツフル板に平行な平行後面バツフル板
と、該平行後面バツフル板に対して一定角度をも
つて会合された1つの傾斜後面バツフル板とによ
りキヤビネツトを構成し、前記前面バツフル板と
前記傾斜後面バツフル板とにそれぞれ少なくとも
1つのスピーカを取付けているため、キヤビネツ
トの置き方によつて傾斜後面バツフル板の位置を
変えることで音の拡散方向を自由に変えられる
他、前記前面バツフル板及び前記傾斜後面バツフ
ル板のスピーカに供給する入力の割合をバランサ
により可変しているため、前面バツフル板のスピ
ーカのみの再生音場から拡散音場までを任意に可
変でき、しかも前記傾斜後面バツフル板のスピー
カへの入力を遅延回路を通じて供給するようにし
ているため、傾斜後面バツフル板のスピーカから
の音が壁などで反射されて聴取者に到達する時間
的な遅れを付加して大きなホールに類似した再生
音場を形成することができるなど多くの効果が得
られる。
As mentioned above, the present invention includes a front full plate,
A cabinet is constituted by a parallel rear buffle plate parallel to the front buffle plate and one inclined rear buffle plate assembled at a certain angle with respect to the parallel rear buffle plate, and the front buffle plate and the inclined rear face are connected to each other. Since at least one speaker is attached to each of the front buttfull plates, the direction of sound diffusion can be freely changed by changing the position of the inclined rear buffle plate depending on how the cabinet is placed. Since the proportion of the input that is supplied to the speakers on the rear butt-full plate is varied by a balancer, the reproduction sound field from only the speakers on the front butt-full plate to a diffused sound field can be arbitrarily varied, and also to the speakers on the inclined rear butt-full plate. Since the input is supplied through a delay circuit, there is a time delay when the sound from the speakers on the tilted back wall is reflected off walls and reaches the listener, resulting in reproduced sound similar to that in a large hall. Many effects can be obtained, such as being able to create a field.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の拡散型スピーカシステムを示す
断面図、第2図は第1図のシステムの使用状態を
示す上面図、第3図乃至第10図は本考案の実施
例を示し、第3図a及びbは本考案によるスピー
カシステムをそれぞれ示す正面及び側断面図、第
4図a及びb、第5図a及びb並びに第6図は第
3図のスピーカシステムの異なる使用状態を示す
図、第7図は第3図のシステムの変形例を示す斜
視図、第8図は第7図の一部分の拡大斜視図、第
9図及び第10図は本考案のシステムの好ましい
使用例をそれぞれ示す回路図である。 10a……前面バツフル板、10b……平行後
面バツフル板、10c……傾斜後面バツフル板、
11a,12a……前面側スピーカ、11b,1
2b……後面側スピーカ、13……バランサ、3
0,30a,30b,30c……遅延回路。
FIG. 1 is a sectional view showing a conventional diffusion type speaker system, FIG. 2 is a top view showing the system in FIG. 1 in use, FIGS. 3 to 10 show embodiments of the present invention, and Figures a and b are front and side sectional views respectively showing the speaker system according to the present invention, Figures 4 a and b, Figures 5 a and b, and Figure 6 are views showing different usage states of the speaker system of Figure 3. , FIG. 7 is a perspective view showing a modification of the system shown in FIG. 3, FIG. 8 is an enlarged perspective view of a portion of FIG. 7, and FIGS. 9 and 10 show preferred usage examples of the system of the present invention. FIG. 10a...Front side buttful plate, 10b...Parallel rear side buttful plate, 10c...Slanted rear side buttfull plate,
11a, 12a...Front side speaker, 11b, 1
2b...Rear side speaker, 13...Balancer, 3
0, 30a, 30b, 30c...Delay circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 前面バツフル板と、該前面バツフル板に平行な
平行後面バツフル板と、該平行後面バツフル板に
対して一定角度をもつて会合された1つの傾斜後
面バツフル板とによりキヤビネツトを構成し、前
記前面バツフル板と前記傾斜後面バツフル板とに
それぞれ少なくとも1つのスピーカを取付け、か
つ前記前面バツフル板及び前記傾斜後面バツフル
板のスピーカに供給する入力の割合をバランサに
より可変すると共に、前記傾斜後面バツフル板の
スピーカへの入力を遅延時間が可変可能な遅延回
路を通じて供給するようにしたことを特徴とする
スピーカシステム。
A cabinet is constituted by a front buff-full plate, a parallel rear buff-full plate parallel to the front buff-full plate, and one inclined rear buff-full plate assembled at a certain angle with respect to the parallel rear buff-full plate, and the front buff-full plate At least one speaker is attached to each of the front panel and the tilted rear panel, and the ratio of input to the speakers of the front panel and the tilted rear panel is varied by a balancer, and the speaker of the tilted rear panel A speaker system characterized in that an input to the speaker is supplied through a delay circuit whose delay time is variable.
JP1981091648U 1981-06-23 1981-06-23 Expired JPH0125034Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981091648U JPH0125034Y2 (en) 1981-06-23 1981-06-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981091648U JPH0125034Y2 (en) 1981-06-23 1981-06-23

Publications (2)

Publication Number Publication Date
JPS57204785U JPS57204785U (en) 1982-12-27
JPH0125034Y2 true JPH0125034Y2 (en) 1989-07-27

Family

ID=29886731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981091648U Expired JPH0125034Y2 (en) 1981-06-23 1981-06-23

Country Status (1)

Country Link
JP (1) JPH0125034Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809153A (en) * 1996-12-04 1998-09-15 Bose Corporation Electroacoustical transducing
WO2015187714A1 (en) * 2014-06-03 2015-12-10 Dolby Laboratories Licensing Corporation Audio speakers having upward firing drivers for reflected sound rendering

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521692A (en) * 1978-07-28 1980-02-15 Bose Corp Device for converting space characteristic of loudspeaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521692A (en) * 1978-07-28 1980-02-15 Bose Corp Device for converting space characteristic of loudspeaker

Also Published As

Publication number Publication date
JPS57204785U (en) 1982-12-27

Similar Documents

Publication Publication Date Title
KR910009794B1 (en) Extended imaging split mode loudspeaker system
US5109416A (en) Dipole speaker for producing ambience sound
US6009972A (en) Omni-directional speaker system
US4179585A (en) Variable ratio full range direct-reflected pyramid inclined loudspeaker
US4410063A (en) Loudspeaker system
JPS606154B2 (en) speaker device
US4348552A (en) Direct/reflecting speaker system and triangular shaped enclosure
US3588355A (en) Stereophonic loudspeaker system
US4503930A (en) Loudspeaker system
US20060251271A1 (en) Ceiling Mounted Loudspeaker System
WO1996031084A1 (en) A four-dimensional acoustical audio system for a homogeneous sound field
US2808121A (en) High fidelity sound reproducing apparatus
JPH0125034Y2 (en)
JPH07129182A (en) Acoustic panel
JPS6121917Y2 (en)
CN2393285Y (en) Ceiling type loudspeaker box
JP2002291086A (en) Loud speaker system
JPH0630488A (en) Acoustic panel
KR100260419B1 (en) Sound reflection plate for nondirectional speaker system
JPS603297A (en) Variable directivity speaker for small sized stereo equipment
JPS6241512Y2 (en)
JPH0731675Y2 (en) Speaker device
JP2003163983A (en) Enclosure structure for speaker
US5093865A (en) Reflecting sound imaging speaker enclosure
JP2722788B2 (en) Speaker system