JPS6354899A - Speaker system - Google Patents

Speaker system

Info

Publication number
JPS6354899A
JPS6354899A JP19861386A JP19861386A JPS6354899A JP S6354899 A JPS6354899 A JP S6354899A JP 19861386 A JP19861386 A JP 19861386A JP 19861386 A JP19861386 A JP 19861386A JP S6354899 A JPS6354899 A JP S6354899A
Authority
JP
Japan
Prior art keywords
sound
speaker
indirect
direct
listener
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
Application number
JP19861386A
Other languages
Japanese (ja)
Other versions
JPH0815359B2 (en
Inventor
Akiyoshi Kimura
木村 彰良
Kiyofumi Inanaga
潔文 稲永
Shinichi Watanabe
伸一 渡辺
Hiroyuki Sagawa
寒川 博行
Jun Matsuda
松田 醇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 by Sony Corp filed Critical Sony Corp
Priority to JP61198613A priority Critical patent/JPH0815359B2/en
Publication of JPS6354899A publication Critical patent/JPS6354899A/en
Publication of JPH0815359B2 publication Critical patent/JPH0815359B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To sufficiently reproduce a sound field rich in an attendance feeling by disposing a speaker for an indirect sound having an unidirectional characteristic in a prescribed direction with respect to a speaker for a direct sound. CONSTITUTION:A speaker system 11 is disposed symmetrically in a listening room, the direction of an acoustic wave radiation axis of the speaker 12 for the direct sound is directed to a front and the direction of the acoustic wave radiation axis of the speaker 13 for the indirect sound having the directivity is disposed at a prescribed angle (180 deg.+ or -90 deg.) with respect to the direction of the acoustic wave radiation axis of the speaker 12 for the direct sound. When a signal having a suitable delay time and a level relation to a direct sound component is inputted to the speaker 13 for the indirect sound, the acoustic wave radiated from the speaker 13 is reflected on a rear wall and a side wall and reaches a listener and the listener feels as if the sound source of the reflected sound component is present on the wall side. Thereby, the spreading feeling or the attendance feeling for the sound sensed in a hall or a theater can be obtained.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明は劇場やホールにおける/EE、演奏等の音の拡
がり感と臨場感を再現する所謂音場創成型のスピーカ・
システムに関するものである。
[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a so-called sound field creation type speaker that reproduces the sense of spaciousness and presence of sound in theaters and halls, EE, performances, etc.
It's about systems.

[発明の概要] リスナー(聴取者)に直接的に到達する音波を生成する
直接音用スピーカと、リスナーに壁面に反射するなどし
て間接的に到達する音波を生成する間接音用スピーカと
を備えたスピーカ・システムにおいて、 前記間接音用スピーカに単一指向性をもたせると共に、
前記間接音用スピーカを前記直接音用スピーカに対し所
定の方向に配置することにより、直接音用スピーカと間
接音用スピーカとを同一キャビネット内に組込んで一体
化しfコ状態の下においてら、充分に臨場感に溢れる音
場の再生を可能にしたものである。
[Summary of the invention] A direct sound speaker that generates sound waves that reach the listener directly, and an indirect sound speaker that generates sound waves that reach the listener indirectly by reflecting off a wall surface, etc. In the speaker system, the indirect sound speaker has unidirectionality, and
By arranging the indirect sound speaker in a predetermined direction with respect to the direct sound speaker, the direct sound speaker and the indirect sound speaker are integrated in the same cabinet and placed under an f-co state, This makes it possible to reproduce a sound field that is fully immersive.

[従来の技術] リスナーに直接的に到達する音波を生夜する直接音用ス
ピーカと、壁面反射するなどしてリスナーに間接的に到
達する音波を生成する間接音用スピーカとを備えていて
、前記直接音用スピーカから直接、リスナーに到達する
直接音(先行音)成分と、間接音用スピーカから壁面反
射などしてリスナーに到達する間接音(遅延反射音)成
分とによって、音に拡がり感と臨場感をもたせたスピー
カ・システムは従来より周知である。
[Prior Art] A speaker is equipped with a direct sound speaker that generates sound waves that directly reach the listener, and an indirect sound speaker that generates sound waves that indirectly reach the listener by reflecting off a wall, etc. The direct sound (preceding sound) component that reaches the listener directly from the direct sound speaker and the indirect sound (delayed reflected sound) component that reaches the listener after reflecting from the indirect sound speaker, such as from a wall, create a sense of spaciousness in the sound. Speaker systems that provide a sense of presence have been well known for some time.

このスピーカ・システムは、ホールや劇場等で感じろ音
の拡かり感や臨場感は、音源からリスナーの耳に直接到
達する直接音(先行音)成分の外に、(1)  直接音
成分とは異なる方向(特に水平方向)から到達し、 (2)直接音成分と比べて適当な遅延時間(例えば10
〜3011seC)を持ち、 (3)直接音成分と比べて適当なレベル関係にある、 以上3つの条件を満す間接音(反射音)成分がリスナー
の耳に到達することによって人間の所謂空間知覚効果が
満足されることにより得られるものであることに着目し
、直接音用スピーカで直接音を作る一方、間接音用スピ
ーカで間接音(遅延反射音)を積極的に作ることにより
、これら直接音と間接音とで臨場感に富む音場を再現し
ようとするものである。
With this speaker system, the sense of spaciousness and presence of sound that can be felt in halls, theaters, etc. is achieved by using two components, in addition to the direct sound (preceding sound) component that reaches the listener's ears directly from the sound source: (1) What is the direct sound component? (2) have an appropriate delay time (e.g. 10
~3011seC), and (3) have an appropriate level relationship compared to the direct sound component.The indirect sound (reflected sound) component that satisfies the above three conditions reaches the listener's ears, thereby improving human spatial perception. Focusing on the fact that the effect can be obtained by satisfying the effect, we aim to improve the effectiveness of these direct sounds by actively creating indirect sound (delayed reflected sound) with the indirect sound speaker while creating direct sound with the direct sound speaker. It attempts to reproduce a realistic sound field using sound and indirect sound.

[発明が解決しようとする問題点1 ところで上記従来のスピーカ・システムにおいては間接
音用スピーカに単一指向性をもたせていなかったために
次に述べるような問題点があった。
[Problem 1 to be Solved by the Invention By the way, in the conventional speaker system described above, since the indirect sound speaker did not have unidirectionality, there were the following problems.

(1)第7図に示したように直接音用スピーカ1に間接
音用スピーカ2を近づけると音源の位置が殆んど一致し
て前述の臨場感をもたらす空間知覚効果が得られない。
(1) As shown in FIG. 7, when the indirect sound speaker 2 is brought close to the direct sound speaker 1, the positions of the sound sources almost coincide with each other, and the above-mentioned spatial perception effect that brings about the sense of presence cannot be obtained.

特に[従来の技術Jの(1)項で述べた直接音成分とは
異なる方向(特に水平方向)から到達する音波を生成す
るためには、間接音用スピーカ2を直接音用スピーカ1
がら雌して設置する必要があり、そのために広い設置ス
ペースを必要とする。
In particular, in order to generate sound waves that arrive from a direction (especially horizontal direction) different from the direct sound component described in section (1) of Conventional Technology J, the indirect sound speaker 2 is replaced by the direct sound speaker 1.
It is necessary to install the device completely, and therefore a large installation space is required.

(2)音場型スピーカ・システムと称して直接音用スピ
ーカと間接音用スピーカとを同一キャビネット内に組込
んだものがあるが、この場合にも間接音用スピーカ自体
がごく限られた高域では指向性が得られるが中低域では
所謂無指向性になるため充分な臨場感が得られない。
(2) There is a sound field type speaker system in which a direct sound speaker and an indirect sound speaker are built into the same cabinet, but even in this case, the indirect sound speaker itself has a very limited height. Although directivity can be obtained in the high frequency range, it becomes so-called omnidirectional in the middle and low frequencies, so a sufficient sense of presence cannot be obtained.

本発明は上記従来の問題点を解決することを目的として
為されたしのである。
The present invention has been made to solve the above-mentioned conventional problems.

[問題点を解決するための手段] リスナーに直接的に到達する音波を生成する直接音用ス
ピーカと、リスナーに間接的に到達する音波を生成する
間接音用スピーカとを備えたスピーカ・システムにおい
て、 前記間接音用スピーカに単一指向性をもたせると共に、
前記間接音用スピーカの音波放射軸方向を前記直接音用
スピーカの音波放射軸方向に対しテ180°±90°の
範囲に配置した。
[Means for solving the problem] In a speaker system including a direct sound speaker that generates sound waves that directly reach the listener and an indirect sound speaker that generates the sound waves that indirectly reach the listener. , giving the indirect sound speaker unidirectionality, and
The sound wave radiation axis direction of the indirect sound speaker was arranged in a range of 180°±90° with respect to the sound wave radiation axis direction of the direct sound speaker.

[作用] 間接音用スピーカに単一指向性をもたせて、該スピーカ
から出力される音波(音響パワー)の殆んど全てを正面
側に放射し、背面側には音波を放射しないようにしたの
で、間接音用スピーカを直接音用スピーカに近づけた状
態でも臨場感をもたらす空間知覚効果を得ることができ
る。また間接音用スピーカに広い帯域にわたって単一指
向性をもたせ、中低域においても無指向性にならないよ
うにしたので、これら中低域においても臨場感に富む音
場を再現することができる。
[Function] The indirect sound speaker has unidirectionality, so that almost all of the sound waves (acoustic power) output from the speaker are radiated to the front side, and no sound waves are radiated to the back side. Therefore, even when the indirect sound speaker is placed close to the direct sound speaker, a spatial perception effect that provides a sense of presence can be obtained. Furthermore, since the indirect sound speaker has unidirectionality over a wide band and is prevented from becoming omnidirectional even in the mid-low range, it is possible to reproduce a sound field with a rich sense of presence even in the mid-low range.

[実施例コ 次に本発明のスピーカ・システムを第1〜6図を参照し
て説明する。図において11がスピーカ・システム、1
2と13はスピーカ・システム11を構成する直接音用
スピーカと間接音用スピーカである。
[Embodiment] Next, a speaker system of the present invention will be explained with reference to FIGS. 1 to 6. In the figure, 11 is the speaker system, 1
2 and 13 are direct sound speakers and indirect sound speakers that constitute the speaker system 11.

r@紀直接音用スピーカ12はキャビネット12aの前
面(バフル面)に直接放射型の平板スピーカ12bとツ
イータ12cを取付けることにより形成されている。ま
た間接音用スピーカ13は、中心からの最短距離ρ8と
最長距離的の比(す/ρ8)がQg/(15≦、#(a
、2≧f23)となるようなバブル板13aの中心(等
価的な音源の中心)に直接放射型の平板スピーカ13b
(この場合はスピーカユニット)が配置される。この実
施例においては、バフル板13aは円形を有しているの
でりQ/Q8= 1である。
The direct sound speaker 12 is formed by attaching a direct radiation type flat speaker 12b and a tweeter 12c to the front surface (baffle surface) of a cabinet 12a. In addition, the indirect sound speaker 13 has a ratio of the shortest distance ρ8 and the longest distance from the center (su/ρ8) to Qg/(15≦, #(a
, 2≧f23), a direct radiation type flat speaker 13b is placed at the center of the bubble plate 13a (the center of the equivalent sound source).
(in this case, a speaker unit) is arranged. In this embodiment, the baffle plate 13a has a circular shape, so Q/Q8=1.

前記平板スピーカ13bの裏面側は第2図に示される様
に工房の吸音材13cで覆われている。従って、平板ス
ピーカ13bからの音波はその前面(第2図に於て左上
方)には直接放射されるが、後面(第2図に於て右下方
)では吸音材13cで大きく減衰され、そのため前記バ
フル板Ha前後の音響パワーの比が変えられることによ
り所謂カーディオイド特性を広い帯域にわたって、具体
的には中低域(約500[(z)まで実現した単一指向
性のスピーカとして構成されている。そしてこの間接音
用スピーカ13は直接音用スピーカ12のキャビネット
12aの上面中央部に立設したスタンドを兼ねる回動軸
14により、直接音用スピーカ12の上方に回動自在に
取付けられている。なお、この回動M14により間接音
用スピーカ13は直接音用スピーカ12から離間される
ので、間接音用スピーカ13から発生した音波のキャビ
ネット12aの上面からの反射音による悪影響が極力少
なくなる。この間接音用スピーカ13の音波放射軸方向
は直接音用スピーカI2の音波放射軸方向に対して18
06±90°の範囲に配置される。
The back side of the flat speaker 13b is covered with a sound absorbing material 13c manufactured by a workshop, as shown in FIG. Therefore, the sound waves from the flat speaker 13b are directly radiated to the front surface (upper left in FIG. 2), but are greatly attenuated by the sound absorbing material 13c at the rear surface (lower right in FIG. 2). By changing the ratio of the acoustic power before and after the baffle plate Ha, it is configured as a unidirectional speaker that achieves so-called cardioid characteristics over a wide band, specifically up to mid-low range (approximately 500 [(z)). The indirect sound speaker 13 is rotatably mounted above the direct sound speaker 12 by a rotating shaft 14 which also serves as a stand and is installed in the center of the upper surface of the cabinet 12a of the direct sound speaker 12. Since the indirect sound speaker 13 is separated from the direct sound speaker 12 by this rotation M14, the adverse effect of the sound waves generated from the indirect sound speaker 13 reflected from the top surface of the cabinet 12a is minimized. The sound wave radiation axis direction of the indirect sound speaker 13 is 18 mm with respect to the sound wave radiation axis direction of the direct sound speaker I2.
06±90°.

そして第3図に示したように直接音用スピーカ12には
アンプ15を介して、また間接音用スピーカ13にはア
ンプ16と遅延装置17を介して信号が入力される。
As shown in FIG. 3, a signal is input to the direct sound speaker 12 via an amplifier 15, and to the indirect sound speaker 13 via an amplifier 16 and a delay device 17.

実施例のスピーカ・システム11は上記のような構成で
あって、第4図に示したように、上記スピーカ・システ
ム11をリスニング室内に左右対称に配置して、直接音
用スピーカ12の音波放射軸方向を正面に向け、指向性
を有する間接音用スピーカ13の音波放射軸方向を前記
直接音用スピーカ12の音波放射軸方向に対して所定の
角K(180°=90°)に配置して、該間接音用スピ
ーカ■3に直接音成分に対して適当な遅延時間とレベル
関係を持つ信号を入力すると、スピーカ13から放射さ
れた音波は後壁及び側壁に反射されてリスナーに到達し
、リス≠−にとっては反射音成分の音源が恰かも壁側に
あるように知覚される。
The speaker system 11 of the embodiment has the above-mentioned configuration, and as shown in FIG. The axial direction is directed to the front, and the sound wave emission axis direction of the indirect sound speaker 13 having directivity is arranged at a predetermined angle K (180°=90°) with respect to the sound wave emission axis direction of the direct sound speaker 12. Then, when a signal having an appropriate delay time and level relationship with respect to the direct sound component is input to the indirect sound speaker 3, the sound waves emitted from the speaker 13 are reflected from the rear wall and side wall and reach the listener. , for the squirrel≠−, the sound source of the reflected sound component is perceived as being on the wall side.

コレによって、直接音用スピーカ12からリスナーの耳
に直接到達する直接音(先行音)成分の外に、(1)直
接音成分とは異なる方向(特に水平方向)から到達し、 (2)直接音成分と比べて適当な遅延時間(例えば10
〜30zsec)を持ち (3)直接音成分と比べて適当なレベル関係にある、 以上3つの条件を満す広い帯域にわたる間接音(反射音
)成分がリスナーの耳に到達することによって人間の所
謂空間知覚効果が満足されることにより、ホールや劇場
等で感じろ音の拡がり感や臨場感を得ることができるの
である。
With this, in addition to the direct sound (preceding sound) component that directly reaches the listener's ear from the direct sound speaker 12, (1) the direct sound component arrives from a direction different from the direct sound component (especially in the horizontal direction); An appropriate delay time (for example, 10
~30zsec) and (3) have an appropriate level relationship compared to the direct sound component, and the indirect sound (reflected sound) component over a wide band that satisfies the above three conditions reaches the listener's ear, so that the so-called human sound By satisfying the spatial perception effect, it is possible to obtain a sense of spaciousness and presence in the sound that can be experienced in halls, theaters, etc.

なお第3図では直接音用スピーカI2と間接音用スピー
カ13とを一体化してスピーカ・システム11を構成し
た場合を示したが第5図に示したように直接音用スピー
カ12と間接音用スピーカ13とそれぞれのアンプ15
.16を一体化してスピーカ・システム11を構成して
も、或は第6図に示したように直接音用スピーカ129
間接音用スピーカ13.アンプ15.16のみならず遅
延装置17をも一体化してスピーカ・システム11とし
ても良い。
Although FIG. 3 shows a case in which the speaker system 11 is configured by integrating the direct sound speaker I2 and the indirect sound speaker 13, as shown in FIG. Speaker 13 and respective amplifier 15
.. 16 to form the speaker system 11, or as shown in FIG.
Indirect sound speaker 13. The speaker system 11 may be constructed by integrating not only the amplifiers 15 and 16 but also the delay device 17.

また遅延装置17はスピーカを壁の至近位置に設置しな
ければならないような場合は必要であるが、スピーカを
壁から充分に離した位置に設置できろ場合には省略でき
る。
Further, the delay device 17 is necessary when the speaker must be installed close to a wall, but can be omitted when the speaker can be installed at a sufficient distance from the wall.

[発明の効果コ 以上説明したように本発明は、リスナーに直接的に到達
する音波を生成する直接音用スピーカと、壁面反射する
などしてリスナーに間接的に到達する音波を生成する間
接音用スピーカとを備えたスピーカ・システムにおいて
、 前記間接音用スピーカには、単一指向性をもたせると共
に、前記間接音用スピーカの音波放射軸方向を前記直接
音用スピーカの音波放射軸方向に対して180°貴90
°の範囲に配置したので、該間接音用スピーカの正面側
と背面側とては、その出力音圧に大きな差が生じ、直接
音用スピーカに間接音用スピーカを近づけて配置しても
、反射音成分の音源が恰かも壁面にあるように感じられ
、空間知覚を生じさせるための、間接音が直接音とは異
なる角度から到来するという条件を満足させろことかで
き、広い設置スペースをとることなく充分な臨場感が得
られるという効果を奏する。
[Effects of the Invention] As explained above, the present invention provides a direct sound speaker that generates sound waves that directly reach the listener, and an indirect sound speaker that generates sound waves that indirectly reach the listener through wall reflection etc. In the speaker system, the indirect sound speaker is provided with unidirectionality, and the sound wave radiation axis direction of the indirect sound loudspeaker is set relative to the sound wave radiation axis direction of the direct sound loudspeaker. te 180°ki 90
Since the indirect sound speaker is placed within a range of The sound source of the reflected sound component feels like it is on the wall, and in order to create a spatial perception, it is possible to satisfy the condition that the indirect sound arrives from a different angle than the direct sound, and it takes up a large installation space. The effect is that a sufficient sense of realism can be obtained without any interference.

しかも特筆されることは、間接音用スピーカとしてスピ
ーカユニット自体に指向性をらた仕るものではなく、ス
ピーカユニットとして無指向性のものを用い、それを吸
音材等を用いろことにより萌後の音響パワーを変えて単
一指向性を得るようにしたため、広い帯域にわたってそ
の特性が得られ、そのため上述の如く広い設置スペース
をとることなく広い帯域にわfこり充分臨場感が得られ
るという効果が得られる。
Moreover, it is worth noting that the indirect sound speaker does not have directivity on the speaker unit itself, but instead uses an omnidirectional speaker unit and uses sound-absorbing materials, etc. By changing the acoustic power of the sound source to obtain unidirectionality, the characteristics can be obtained over a wide band, and as a result, a sufficient sense of presence can be obtained over a wide band without taking up a large installation space as mentioned above. is obtained.

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

第1図は本発明のスピーカ・システムの斜視図、第2図
は平面図、第3図はスピーカ・システム回路のブロック
図、第4図は使用状態の平面図、第5図および第6図は
スピーカ・システムの他の実施例のブロック図、第7図
は従来のスピーカ・システムの使用状態の平面図である
。 11・・・スピーカ・システム、12・・・直接音用ス
ピーカ、13・・・間接音用スピーカ、13a・・・バ
フル板、13b・・・スピーカ、13c・・・吸着材。 第1図 第3図 第6図 」  γ
Fig. 1 is a perspective view of the speaker system of the present invention, Fig. 2 is a plan view, Fig. 3 is a block diagram of the speaker system circuit, Fig. 4 is a plan view of the speaker system in use, and Figs. 5 and 6. 7 is a block diagram of another embodiment of the speaker system, and FIG. 7 is a plan view of the conventional speaker system in use. DESCRIPTION OF SYMBOLS 11...Speaker system, 12...Speaker for direct sound, 13...Speaker for indirect sound, 13a...Baffle plate, 13b...Speaker, 13c...Adsorbent. Figure 1 Figure 3 Figure 6 γ

Claims (2)

【特許請求の範囲】[Claims] (1)リスナーに直接的に到達する音波を生成する直接
音用スピーカと、リスナーに間接的に到達する音波を生
成する間接音用スピーカとを備えたスピーカ・システム
において、 前記間接音用スピーカには単一指向性をもたせると共に
、前記間接音用スピーカの音波放射軸方向を前記直接音
用スピーカの音波放射軸方向に対して180°±90°
の範囲に配置したことを特徴とするスピーカ・システム
(1) In a speaker system comprising a direct sound speaker that generates sound waves that directly reach the listener and an indirect sound speaker that generates sound waves that indirectly reach the listener, the indirect sound speaker includes: has unidirectionality, and the direction of the sound wave radiation axis of the indirect sound speaker is 180°±90° with respect to the sound wave radiation axis direction of the direct sound speaker.
A speaker system characterized by being arranged within a range of.
(2)前記間接音用スピーカは、直接放射型のスピーカ
をバフル板の中央部に配置すると共に、前記スピーカの
裏面側を吸音材で覆うことにより構成されている特許請
求の範囲第1項記載のスピーカ・システム。
(2) The indirect sound speaker is configured by arranging a direct radiation type speaker in the center of a baffle plate and covering the back side of the speaker with a sound absorbing material. speaker system.
JP61198613A 1986-08-25 1986-08-25 Speaker system Expired - Lifetime JPH0815359B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61198613A JPH0815359B2 (en) 1986-08-25 1986-08-25 Speaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61198613A JPH0815359B2 (en) 1986-08-25 1986-08-25 Speaker system

Publications (2)

Publication Number Publication Date
JPS6354899A true JPS6354899A (en) 1988-03-09
JPH0815359B2 JPH0815359B2 (en) 1996-02-14

Family

ID=16394101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61198613A Expired - Lifetime JPH0815359B2 (en) 1986-08-25 1986-08-25 Speaker system

Country Status (1)

Country Link
JP (1) JPH0815359B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009163140A (en) * 2008-01-09 2009-07-23 Sony Corp Audio signal output device, audio signal output method, program, and recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079900A (en) * 1983-10-07 1985-05-07 Victor Co Of Japan Ltd Speaker device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079900A (en) * 1983-10-07 1985-05-07 Victor Co Of Japan Ltd Speaker device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009163140A (en) * 2008-01-09 2009-07-23 Sony Corp Audio signal output device, audio signal output method, program, and recording medium

Also Published As

Publication number Publication date
JPH0815359B2 (en) 1996-02-14

Similar Documents

Publication Publication Date Title
US5809150A (en) Surround sound loudspeaker system
US7298853B2 (en) Parametric virtual speaker and surround-sound system
US6229899B1 (en) Method and device for developing a virtual speaker distant from the sound source
US6257365B1 (en) Cone reflector/coupler speaker system and method
AU713105B2 (en) A four dimensional acoustical audio system
JP2575318B2 (en) Theater speaker and screen device
CN107925813A (en) With asymmetric diffusion for the upward excitation loudspeaker through reflecting audio reproduction
US4266092A (en) Loudspeaker system with broad image source
US4961226A (en) Stereo electroacoustical transducing
US20030215103A1 (en) Parametric virtual speaker and surround-sound system
US20060251271A1 (en) Ceiling Mounted Loudspeaker System
JPH06178379A (en) Video visuality system
US20030118198A1 (en) Biaxial parametric speaker
JPH03169200A (en) Television receiver
EP2577990A1 (en) Compact stereo loudspeaker for wall mounting
JPS6354899A (en) Speaker system
JPH02291798A (en) Audio output device
JPS603297A (en) Variable directivity speaker for small sized stereo equipment
KR100320054B1 (en) Cone reflector/coupler speaker system and method
JP2004500787A (en) Speaker device with housing
JP2000354285A (en) Next-generation loudspeaker
GB2256773A (en) Loudspeaker uinit
JPH02237296A (en) Audio output device
Eargle Stereo and the Listening Environment
JPH1079995A (en) Speaker system

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term