EP0114951B1 - Stereophonisches Lautsprechergehäuse - Google Patents

Stereophonisches Lautsprechergehäuse Download PDF

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Publication number
EP0114951B1
EP0114951B1 EP83111088A EP83111088A EP0114951B1 EP 0114951 B1 EP0114951 B1 EP 0114951B1 EP 83111088 A EP83111088 A EP 83111088A EP 83111088 A EP83111088 A EP 83111088A EP 0114951 B1 EP0114951 B1 EP 0114951B1
Authority
EP
European Patent Office
Prior art keywords
loud
speakers
fact
baffle
partition
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
EP83111088A
Other languages
English (en)
French (fr)
Other versions
EP0114951A1 (de
Inventor
Walter Schupbach
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.)
SES Sound Electronic Systems SA
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83111088T priority Critical patent/ATE24813T1/de
Publication of EP0114951A1 publication Critical patent/EP0114951A1/de
Application granted granted Critical
Publication of EP0114951B1 publication Critical patent/EP0114951B1/de
Priority to MYPI87002512A priority patent/MY102183A/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Definitions

  • stereo speakers have been proposed grouping the two channels, left and right, in a single sound enclosure, for example the Jensen S-100 speaker.
  • These speakers use three loudspeakers directed towards the listening room in three divergent directions, the central loudspeaker being supplied by the sum of the signals "left” and “right” (L + R), the loudspeaker on the left being powered by the differential signal (L - R) and the right speaker being powered by a reverse differential signal - (L - R).
  • the disadvantage of such speakers is that they require a special transformer on each channel with isolated secondary which makes it impossible to adapt them to current amplifiers.
  • the stereophonic effect of these speakers was either unstable or imperfect and that the listening position relative to the speaker was very critical.
  • US Patent 3,933,219 describes a monolithic stereophonic enclosure as in the preamble of claim 1 comprising a bottom, a cover and side walls, two of which, forming an angle between them, each carry several speakers all directed towards the rear of the enclosure.
  • Patent FR 2,407,635 describes a monolithic stereophonic enclosure comprising two faces of trapezoidal shape forming an angle between them and each carrying several loudspeakers arranged along a diagonal of the wall.
  • the object of the present invention is to produce a single enclosure for the reproduction of stereophonic sounds, the loudspeakers of which can be supplied directly by the "left" or “right” signals of an amplifier, enabling the effect to be achieved. stable and perfect stereophonic and with which the listener is not constrained to a precise listening position.
  • the single stereophonic speaker illustrated comprises a base plate 1, provided with feet 2, on which are fixed a front wall 3 intended to face the listener and two sides 4 forming an angle of approximately 120 ° with the front wall 3 with a width of between 1/3 and 1/5 approximately of that of the front wall 3.
  • a shelf 5 closes off the top of the enclosure.
  • This enclosure has a middle partition 6 extending perpendicularly towards the rear from the front wall separating the enclosure into two chambers 7, 8. Each of these chambers 7, 8 is closed towards the rear by a wall 9, 10 perpendicular each to one of the sides 4 and forming an angle of about 60 ° with the middle partition 6.
  • These rear walls 9, 10 serve as support for the loudspeakers which are directed towards the rear of the enclosure.
  • a fabric 11, 12 stretched between the sides 4 and the middle partition 6 hides said speakers.
  • the enclosure In the service position, the enclosure is placed in front of a wall of the listening room, the front face 3 being parallel to this wall, the rear edge of the middle partition 6 being distant from this wall by a few centimeters or a few tens. generally centimeters.
  • the chambers 7 can be at least partially filled with glass wool or other sound insulation material.
  • Each rear wall 9, 10 serves as a support for several speakers, from two to five for example, but preferably three to four.
  • each rear wall 9, 10 has four speakers 13, 14, 15, 16 arranged one above the other and offset laterally with respect to each other.
  • This line passing through the centers of the speakers can be a straight line, a broken line or a curve according to the executions of the enclosure.
  • this line joining the centers of the loudspeakers extends in a sector between two straight lines a, b forming angles a, respectively 8 with the middle partition 6 respectively the bottom of the enclosure between 15 ° and 50 °.
  • the loudspeakers 13, 14, 15, 16 are preferably of the same size and can be either identical or have different frequency characteristics. In the latter case, the loudspeakers more particularly provided for the reproduction of low frequencies are placed near the bottom 1 and the middle partition 6, while the loudspeakers intended more particularly for the reproduction of treble are located towards the top of the enclosure and away from the partition 6.
  • all the speakers mounted on the same rear wall 9, 10 are all fed by the same "right", respectively "left” signal, delivered by a stereophonic amplifier, possibly via a filter correcting the frequency reproduction characteristics of the loudspeakers.
  • This enclosure allows an acoustic coupling between the chambers 7 and 8 which can be considered analogous to the mechanical coupling existing between the two channels when playing a disc using a needle or sapphire which reads the two "left” and “right” engravings and each transmits it to a transducer but necessarily with a ceratin mechanical coupling between the two signals.
  • this acoustic coupling between the two channels can be modified either by acting on the elasticity or the rigidity of the middle partition 6 which acts as a membrane between the two chambers 7 and 8 or by drilling one or more holes of appropriate size and shape to make a direct connection between chambers 7 and 8.
  • the loudspeakers 17, 17 ′ of the first pair, the lower pair, have their axes located on a vertical line, ie parallel to the middle partition 6.
  • the loudspeakers 18, 18 'of the second pair are located above the first loudspeakers and more distant than these from the middle partition 6.
  • the axes of the loudspeakers 18, 18' are connected by a straight line forming an angle 5 with the middle partition 6.
  • the loudspeakers 19, 19 ′ of the third pair are aligned on a straight line forming an angle ⁇ , larger than the angle 5, with the middle partition. These two loudspeakers 19, 19 ′ are located above the loudspeakers 18, 18 ′ and the loudspeaker 19 is more distant from the partition 6 than is the loudspeaker 18 likewise the loudspeaker speaker 19 'is further from partition 6 than speaker 18' is.
  • the loudspeakers 20, 20 ′ of the fourth pair are aligned on a horizontal straight line forming a right angle with the middle partition 6 and the loudspeakers 20, respectively 20 ′ are more distant from this partition 6 than are the loudspeakers 19, respectively 19 '.
  • each pair of speakers 17, 17 '; 18, 18 '; 19, 19 'and 20, 20' would be replaced by an elliptical loudspeaker whose major axis would be oriented as are the line segments connecting the centers of the loudspeakers of the same pair.
  • the center of the elliptical loudspeakers would be located on a line going away simultaneously from the bottom 1 and the partition 6 of the enclosure.
  • the centers or axes of all the loudspeakers are located in a sector delimited between lines a and b intersecting on the intersection of the bottom 1 and the partition 6 and forming angles a with the partition 6, respectively j3 with the bottom 1 between 15 ° and 50 °, preferably 30 °.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Filters And Equalizers (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Casings For Electric Apparatus (AREA)
  • Stereophonic Arrangements (AREA)
  • Stereophonic System (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Communication Cables (AREA)
  • Circuit For Audible Band Transducer (AREA)

Claims (16)

1. Einteiliges sterophones Gehäuse umfassend einen Boden (1) und eine Abdeckung bzw. einen Deckel (5) sowie eine Mehrzahl von Wänden (3,4, 9, 10), von welchen zwei Rückwände (9, 10), die einen Winkel miteinander einschließen, als Träger für mehrere Lautsprecher (13-20) dienen, die alle zur Rückseite des Gehäuses gerichtet sind, dadurch gekennzeichnet, daß das Gehäuse durch eine Trennwand (6), die senkrecht zum Boden (1) steht, in zwei aneinander angrenzende Kammern (7, 8) getrennt ist, wobei jede Kammer eine der Wände (9, 10) umfaßt, die Lautsprecher (13-20) abstützt bzw. trägt; daß die Mittelpunkte der Lautsprecher (13-16), die von jeder Rückwand (9, 10) getragen werden, sich in einem Sektor dieser Rückwand befinden, der durch zwei Gerade (a, b) begrenzt ist, die sich auf der Schnittlinie des Bodens (1), der Trennwand (6) und der Wand (9, 10) schneiden, die als Träger für die Lautsprecher dient, und die jeweils einen Winkel a mit der Trennwand un einen Winkel β mit dem genannten Boden bilden, wobei beide Winkel 15-500 betragen und ihre Summe weniger als 90° beträgt.
2. Gehäuse nach Anspruch 1, dadurch gekennzeichnet, daß die Mitten der von jeder Rückwände (9, 10) getragenen Lautsprecher (13-20) auf einer Linie liegen, deren Verlauf sich gleichzeitig vom Boden (1) des Gehäuses und der mittleren Trennwand (6) entfernt, welche die beiden Kammern (7, 8) des Gehäuses trennt.
3. Gehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß es eine volle Vorderwand (3) aufweist und daß der Abstand zwischen der Mitte der Lautsprecher (13-20) und der Vorderwand (3) umso mehr abnimmt je mehr der Abstand zwischen der Mitte der Lautsprecher (13-20) und der mittleren Trennwand (6) zunimmt.
4. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, daß die Linie, auf der die Mitten der Lautsprecher (13-20) liegen, eine Gerade ist.
5. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, daß die Linie, auf der die Mitten der Lautsprecher (13-20) liegen, eine geknickte Linie ist.
6. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, daß die Linie, auf der die Mitten der Lautsprecher (13-20) liegen, eine Kurve ist.
7. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß alle Lautsprecher (13-20) derselben Rückwand (9, 10) von demselben "rechten" bzw. "linken" Signal gespeist sind.
8. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, daß alle Lautsprecher (13-20) denselben Durchmesser haben.
9. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, daß die Lautsprecher (13-20) elliptisch sind und daß der Winkel zwischen der mittleren Trennwand (6) und der Richtung der großen Achse des Lautsprechers umso größer ist je mehr die Mitte eines Lautsprechers sich vom Boden (1) und von der mittleren Trennwand (6) entfernt, wobei die große Achse des unteren Lautsprechers (1; 17) vertikal ist, während diejenige des oberen Lautsprechers (16; 20) horizontal ist.
10. Gehäuse nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß alle Lautsprecher (13-20) dieselbe Charakteristik haben.
11. Gehäuse nach einem der Ansprüche 1, 8 oder 9, dadurch gekennzeichnet, daß die Lautsprecher (1; 17') mit Charakteristik für die Wiedergabe von tiefen Frequenzen sich in Nähe des Bodens (1) und der mittleren Trennwand (6) befinden, während die oberen Lautsprecher (16; 20) spezieller für die Wiedergabe von hohen Frequenzen vorgesehen sind.
12. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, daß die Kammern (7, 8) wenigstens teilweise mit einem Isoliermaterial gefüllt sind.
13. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, daß die Rückwände (9, 10) jeweils mit der mittleren Trennwand (6) einen Winkel von 60° bilden.
14. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, daß jede Rückwand (9, 10) Paare von Lautsprechern (17, 17'-20, 20') aufweist, die derart angeordnet sind, daß die Mittelpunkte (A, B, C, D) von die Mitten zweier Lautsprecher desselben Paares verbindenden geraden Abschnitten auf einer Linie liegen, deren Verlauf sich gleichzeitig vom Boden (1) des Gehäuses und von der die beiden Kammern (7, 8) des Gehäuses trennenden mittleren Trennwand (6) entfernt.
15. Gehäuse nach Anspruch 7, 9 oder 14, dadurch gekennzeichnet, daß die mittlere Trennwand (6) die beiden benachbarten Kammern (7,8) akustisch miteinander koppelt.
16. Gehäuse nach Anspruch 15, dadurch gekennzeichnet, daß die mittlere Trennwand (6) Öffnungen aufweist, die die beiden benachbarten Kammern (7, 8) miteinander verbinden.
EP83111088A 1982-12-23 1983-11-07 Stereophonisches Lautsprechergehäuse Expired EP0114951B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT83111088T ATE24813T1 (de) 1982-12-23 1983-11-07 Stereophonisches lautsprechergehaeuse.
MYPI87002512A MY102183A (en) 1982-12-23 1987-09-30 Stereophonic single baffle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7517/82A CH663872A5 (fr) 1982-12-23 1982-12-23 Enceinte stereophonique.
CH7517/82 1982-12-23

Publications (2)

Publication Number Publication Date
EP0114951A1 EP0114951A1 (de) 1984-08-08
EP0114951B1 true EP0114951B1 (de) 1987-01-07

Family

ID=4326387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111088A Expired EP0114951B1 (de) 1982-12-23 1983-11-07 Stereophonisches Lautsprechergehäuse

Country Status (11)

Country Link
US (1) US4572325A (de)
EP (1) EP0114951B1 (de)
JP (1) JPS59122199A (de)
KR (1) KR910006301B1 (de)
AT (1) ATE24813T1 (de)
CA (1) CA1201659A (de)
CH (1) CH663872A5 (de)
DE (2) DE3369052D1 (de)
DK (1) DK160390C (de)
MY (1) MY102183A (de)
NO (1) NO158709C (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667174A5 (fr) * 1986-06-05 1988-09-15 Sound Electronic Systems Enceinte stereophonique monolithique.
US4881265A (en) * 1988-09-13 1989-11-14 Soundwave Fidelity Corporation Apex loudspeaker
NL8802488A (nl) * 1988-10-11 1990-05-01 Rob Jurrien Oliemuller Luidsprekerbox.
AU658020B2 (en) * 1991-11-08 1995-03-30 Colin Arthur Preston Coincident spatial loudspeaker
US5546468A (en) * 1994-05-04 1996-08-13 Beard; Michael H. Portable speaker and amplifier unit
US6801631B1 (en) * 1999-10-22 2004-10-05 Donald J. North Speaker system with multiple transducers positioned in a plane for optimum acoustic radiation pattern
AU2013400A (en) 1999-11-25 2001-06-04 Embracing Sound Experience Ab A method of processing and reproducing an audio stereo signal, and an audio stereo signal reproduction system
EP1148759B1 (de) * 2000-04-18 2012-09-19 THOMSON multimedia S.A. Gehäuse für audiogeräte
EP1148758A1 (de) * 2000-04-18 2001-10-24 THOMSON multimedia S.A. Gehäuse für Audiogeräte
SE527062C2 (sv) * 2003-07-21 2005-12-13 Embracing Sound Experience Ab Stereoljudbehandlingsmetod, -anordning och -system
US20070110249A1 (en) * 2003-12-24 2007-05-17 Masaru Kimura Method of acoustic signal reproduction
US8336327B2 (en) * 2004-07-21 2012-12-25 Nidec Motor Corporation Method and device for producing ice having a harvest-facilitating shape
SE530180C2 (sv) * 2006-04-19 2008-03-18 Embracing Sound Experience Ab Högtalaranordning
CN106131758A (zh) * 2016-07-25 2016-11-16 广东欧珀移动通信有限公司 一种扬声器组件及音箱

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582553A (en) * 1967-12-04 1971-06-01 Bose Corp Loudspeaker system
US3637039A (en) * 1971-04-19 1972-01-25 Dathar Corp Stereo speaker system
FR2188387B1 (de) * 1972-06-07 1974-12-27 Dehay Daniel
US3933219A (en) * 1974-04-08 1976-01-20 Ambient, Inc. Speaker system
FR2407635A1 (fr) * 1977-10-27 1979-05-25 Herrenschmidt Gilles Dispositif de haut-parleur

Also Published As

Publication number Publication date
CH663872A5 (fr) 1988-01-15
NO834701L (no) 1984-06-25
DE3369052D1 (en) 1987-02-12
US4572325A (en) 1986-02-25
DE114951T1 (de) 1984-12-06
DK591183D0 (da) 1983-12-22
CA1201659A (en) 1986-03-11
DK160390B (da) 1991-03-04
MY102183A (en) 1992-04-30
NO158709C (no) 1988-10-19
KR840007500A (ko) 1984-12-07
DK591183A (da) 1984-06-24
KR910006301B1 (ko) 1991-08-19
EP0114951A1 (de) 1984-08-08
JPS59122199A (ja) 1984-07-14
ATE24813T1 (de) 1987-01-15
NO158709B (no) 1988-07-11
DK160390C (da) 1991-08-12

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