EP1635606B1 - Beschallungsanlage mit einstellbarer Richtwirkung - Google Patents

Beschallungsanlage mit einstellbarer Richtwirkung Download PDF

Info

Publication number
EP1635606B1
EP1635606B1 EP05291876A EP05291876A EP1635606B1 EP 1635606 B1 EP1635606 B1 EP 1635606B1 EP 05291876 A EP05291876 A EP 05291876A EP 05291876 A EP05291876 A EP 05291876A EP 1635606 B1 EP1635606 B1 EP 1635606B1
Authority
EP
European Patent Office
Prior art keywords
degrees
flap
plane
angle
enclosure
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.)
Not-in-force
Application number
EP05291876A
Other languages
English (en)
French (fr)
Other versions
EP1635606A1 (de
Inventor
Christian Heil
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.)
L Acoustics SAS
Original Assignee
L Acoustics SAS
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 L Acoustics SAS filed Critical L Acoustics SAS
Publication of EP1635606A1 publication Critical patent/EP1635606A1/de
Application granted granted Critical
Publication of EP1635606B1 publication Critical patent/EP1635606B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Definitions

  • the invention relates generally to sound reinforcement techniques.
  • the invention relates to a sound system at least consisting of a first acoustic chamber equipped with at least one acute sound reproduction section, the acute sound section comprising at least one transducer and a guide for expanding sound. wave, the expansion guide having an inlet and an outlet respectively relatively close and relatively remote from the transducer, this expansion guide receiving at its input the sound waves emanating from the transducer and having, at least in projection in a first plane, a shape flaring from its entrance to its outlet to spread in a solid emission angle the sound waves emerging from this expansion guide.
  • One of the major problems with the sound system lies in the difficulty of rendering clearly, particularly in a closed space such as a theater, the sounds typically in the range of 300 Hz to 20 kHz, and especially the most acute sounds in the range of 1300 Hz to 20 kHz.
  • the acute sounds or average frequency have a relatively low wavelength
  • these sounds are most likely to reflect and recombine by forming multiple interferences and sound delays that alter the quality of the sound reproduced.
  • the invention which is in this context, aims to provide a sound system for a sound quality significantly higher than existing systems.
  • the system of the invention is essentially characterized in that the expansion guide of the first enclosure comprises at least a first movable component movable by a movement carried out parallel to the first plane, said solid emitting angle thus having a value that can be adjusted by moving the first flap.
  • movement carried out parallel to the foreground is meant for example a movement in a circular arc parallel to the first plane and thus producing a rotation of the first component about an axis at least substantially perpendicular to this first plane, or a movement in line segment parallel to the foreground and thus producing a translation of the first component relative to its initial position.
  • the sound system of the invention may then comprise at least a second acoustic enclosure similar to the first and forming, at least with the first enclosure, a one-dimensional network of sound sources extending in a direction substantially transverse to the first plane, the second enclosure comprising at least a first mobile flap movable independently of the first movable flap of the first enclosure.
  • second acoustic enclosure similar to the first is meant, in the present description, a second acoustic enclosure possibly strictly identical to the first enclosure but which, without necessarily being, has at least the characteristics which, over time, description, are explicitly attributed to the first speaker as it is described.
  • direction substantially transverse to the foreground is meant, in the present description, a direction which, without necessarily being strictly perpendicular to the first plane, makes a significant angle with the latter, for example at least 70 degrees.
  • the sound system thus defined forms a one-dimensional network of sound sources, that is to say a system universally known to those skilled in the art under its Anglo-Saxon name "Line Source Array”.
  • the section of the acute sounds of each chamber advantageously comprises a waveguide connecting the transducer to the inlet of the expansion guide, this waveguide may have, opposite the inlet of the expansion guide, an output slit-shaped oriented in a direction substantially transverse to the foreground.
  • the waveguide can be realized according to the teaching of the EP Patent 0 331 566 or its American counterpart, US 5,163,167 .
  • the expansion guide of each enclosure may also include a second movable component, also movable by a movement made parallel to the foreground, to change the value of the solid emission angle.
  • the expansion guide of each enclosure is at least partially delimited by walls extending substantially transversely to the foreground and comprising two inlet walls extending from the entrance of this guide two exit walls extending to the outlet of this expansion guide, that the inlet walls form between them a relatively closed first angle, that the exit walls are respectively connected to the walls of the entering into respective connection areas and form between them a second relatively open angle, and that each movable flap is disposed in the solid emission angle at least partially inside the second angle, facing a wall of corresponding output, to selectively adopt a relatively close position or a position relatively remote from the corresponding output wall.
  • Each enclosure is for example symmetrical with respect to a median plane perpendicular to the first plane, the two inlet walls of the expansion guide of this enclosure being symmetrical to each other with respect to this median plane, and the two output walls of the same expansion guide being equally symmetrical to each other with respect to this median plane.
  • each flap forms a non-zero angle with the corresponding outlet wall and is movably mounted by translation parallel to the first plane, between a relatively low directivity position, in which this flap is relatively distant from the connection area of the corresponding outlet wall and in which the sound waves emerging from the expansion guide are guided by the wall of corresponding output, and a relatively high directivity position, in which this flap is relatively close to or in support of the zone of connection of the corresponding outlet wall, and in which the sound waves emerging from the expansion guide are guided by this component.
  • Each flap may in this case have, in the connection zone, a leading edge adopting substantially the same orientation as the inlet wall to which the corresponding outlet wall is connected and resting on this input wall in the relatively high directivity position of this flap.
  • the first angle is between 35 degrees and 55 degrees, preferably between 42 degrees and 48 degrees
  • the second angle is between 100 degrees and 140 degrees, preferably between 115 degrees and 125 degrees
  • each shutter forms with the median plane an angle of between 20 degrees and 40 degrees, preferably between 25 degrees and 35 degrees.
  • the values of the aforementioned angles can only be strictly measured in the case where the shutters and the walls are flat, and to the extent that the flaps and the walls can very well, locally or globally, not be planes, it is useful to specify here that the values of the aforementioned angles are given by taking into account the general direction that each wall and each shutter adopts, such as this wall and this shutter are seen at the scale of the length of wave corresponding to an average frequency, for example of the order of 1300 Hz.
  • each chamber comprises at least a first medium frequency sound reproducing section disposed against a first of the two input walls, to the outside of the solid emission angle and at least a first bass sound reproducing section disposed against a first of the two output walls, outside the solid emission angle.
  • the invention relates to a sound system constituted by one or more loudspeakers such as E1 to E7.
  • Figures 1 and 2 The most striking interest of the invention is illustrated in Figures 1 and 2 , on which the system of the invention is represented in the form of a one-dimensional network of sound sources (Line Source Array), such as LSAg or LSAd, used for the sound of a space appearing in vertical section on the figure 1 .
  • Line Source Array such as LSAg or LSAd
  • Each of the speakers E1 to E7 of each of the networks LSAg and LSAd emits a beam of sound waves, such as SE1g to SE7g for the network LSAg ( figure 1 ), or such as SE1d and SE4d for the respective speakers E1 and E4 of the LSAd network ( figure 2 ).
  • each network can, as shown in FIG. figure 1 , be constituted by a slightly curved column formed by stack of speakers E1 to E7, the different sound beams SE1g to SE7g having thus emitted selectively to the closest listeners for the speaker E1, and the farthest to the speaker E7 .
  • the solid emission angle of the different beams such as SE1 to SE7 has the same divergence angle for all the beams, this angle of divergence being for example defined as the angle of divergence.
  • the trace of each beam in the plane P substantially perpendicular to the stacking direction of the speakers E1 to E7.
  • the need to give the beam SE1g an angle of divergence sufficient to sound the better the nearest audition area of the LSAg network leads to giving for example the SE7g beam an oversized divergence angle, leading to the appearance multiple sound delays of this beam by reflection on the partitions of the auditory space.
  • the invention solves this problem by providing speakers with adjustable directivity.
  • each speaker such as E1 is equipped with a section 11 for reproducing acute sounds, that is to say sounds whose frequency is typically at least 1300 Hz.
  • This section 11 generally comprises a transducer 20, such as a compression chamber motor, a waveguide 21, and a wave expansion guide 3, the waveguide 21 being interposed between the transducer 20 and the expansion guide 3.
  • a transducer 20 such as a compression chamber motor
  • a waveguide 21 and a wave expansion guide 3, the waveguide 21 being interposed between the transducer 20 and the expansion guide 3.
  • This expansion guide 3 has an input 30 relatively close to the output 210 of the waveguide 21 and therefore of the transducer 20, and an output 31 relatively far from the output 210 of the waveguide 21 and thus of the transducer 20.
  • the expansion guide 3 receives at its input 30 the sound waves emanating from the transducer 20 and transmitted by the waveguide 21.
  • the guide 21 is for example made in accordance with the EP 0 331 566 or US 5,163,167 today universally known to those skilled in the art, and present, opposite the inlet 30 of the expansion guide 3, and as an outlet 210, a slot oriented in a direction substantially transverse to the plane P which is particularly constituted by the plan of Figures 3, 4A, 4B , and 7A to 7D .
  • the expansion guide 3 has meanwhile, in projection in the same plane P, a shape flaring from its inlet 30 to its outlet 31 to spread in a solid emission angle the sound waves emerging from this guide. expansion 3.
  • the expansion guide 3 of each enclosure such that E1 to E7 comprises at least one movable flap 32g and for example two movable flaps 32g and 32d.
  • Each movable flap such as 32g or 32d is displaceable by a movement carried out parallel to the plane P, so that the solid angle of emission of the acute and the medium frequency sound waves takes a value that can be adjusted by moving each flap 32g or 32d.
  • the expansion guide 3 of each enclosure such that E1 to E7 is at least partially delimited by walls such as 33g, 33d, 34g, and 34d ( figure 3 in particular) which extend substantially transversely to the plane P.
  • These walls more precisely comprise two inlet walls, 33g and 33d, which extend from the inlet 30 of the expansion guide 3, and two outlet walls, 34g and 34d, which extend up to the outlet 31 of this expansion guide 3, the outlet walls 34g and 34d respectively connecting to the inlet walls 33g and 33d in respective connection areas 35g and 35d.
  • the inlet walls 33g and 33d form between them a relatively closed angle A1, for example between 35 degrees and 55 degrees, preferably between 42 degrees and 48 degrees, and which may be chosen to be equal to 45 degrees.
  • the outlet walls 34g and 34d form between them a relatively open angle A2, for example between 100 degrees and 140 degrees, preferably between 115 degrees and 125 degrees, and which can be chosen to be equal to 120 degrees.
  • each enclosure such that E1 to E7 may be symmetrical with respect to a median plane M perpendicular to the first plane P, of so that the two inlet walls 33g and 33d of the expansion guide 3 of this enclosure are symmetrical to each other with respect to this median plane M, and that the two outlet walls 34g and 34d of this same expansion guide 3 are also symmetrical to each other with respect to this median plane M.
  • Each movable flap such as 32g or 32d is disposed at least partially within the second angle A2, facing the left exit wall 34g for the left flap 32g, and facing the right exit wall 34d for the flap right 32d, each flap adopting at will a relatively close position or a position relatively remote from the corresponding outlet wall 34g or 34d.
  • each movable flap such as 32g or 32d permanently forms a non-zero angle with the corresponding outlet wall 34g or 34d and is movably mounted, by a translation parallel to the first plane P, between at least one relatively low directivity position. , in which this flap 32g or 32d is relatively remote from the connection zone 35g or 35d of the corresponding outlet wall 34g or 34d, and a relatively high directivity position, in which this flap 32g or 32d is relatively close to the zone connecting 35g or 35d of the corresponding outlet wall 34g or 34d, or even resting on this area.
  • Each flap such as 32g or 32d is for example substantially planar and forms with the median plane M an angle A3 of between 20 degrees and 40 degrees, preferably between 25 degrees and 35 degrees, and which can be chosen to be equal to 30 degrees.
  • each flap such as 32g or 32d, for example constituted by a polycarbonate plate, may have, in the corresponding connection zone 35g or 35d, a leading edge 320 ( figures 3 and 6 ) adopting substantially the same orientation as the inlet wall 33g or 33d located on the same side as this flap, and resting on this inlet wall 33g or 33d in the relatively high directivity position of this flap 32g or 32d ( Figure 4B ).
  • Each loudspeaker such as E1 to E7 preferably comprises two medium frequency sound reproducing sections 12 and two bass sound reproduction sections 13 disposed outside the solid angle of emission of the sound waves and symmetrically by ratio to the median plane M.
  • each medium-frequency sound reproducing section 12 consists essentially of a loudspeaker mounted on a wooden panel forming at least part of the input wall, such as 33g or 33d.
  • each section 13 of bass sound reproduction is for example essentially consisting of a loudspeaker mounted on a wooden panel forming at least a portion of the outlet wall, such as 34g or 34d.
  • each inlet wall 33g or 33d can be considered physically constituted both by the corresponding wood panel and by the membrane of the corresponding medium frequency loudspeaker, the direction of this input wall being assimilated to that of this wooden panel.
  • each outlet wall 34g or 34d may be considered physically constituted both by the corresponding wood panel and the corresponding bass sound speaker membrane, the direction of this output wall being comparable to that of this wooden panel.
  • the flaps 32g and 32d are movable independently of one another, they can not only adopt a symmetrical configuration of high directivity as shown by the Figures 4B , 5A and 7A and a symmetrical configuration of weak directivity as shown by Figures 3, 4A , 5B and 7B , but also a first asymmetrical configuration illustrated at Figures 5C and 7C and in which the flap 32d is in the low directivity position while the flap 32g is in the high directivity position, and a second asymmetrical configuration illustrated in FIGS. Figures 5D and 7D and in which the flap 32g is in the low directivity position while the flap 32d is in the high directivity position.
  • the figure 6 illustrates a mechanism usable, among many others, to maintain the flaps 32g and 32d and to allow movement between their low and high directivity positions.
  • Such a mechanism comprises for example two mutually parallel slides 4H and 4B, the slide 4H being fixed by its ends on the upper front edges 51H and 52H ( figure 5D ) of the shell or the frame 5 of the enclosure E1, and the slideway 4B being fixed by its ends on the lower front edges 51B and 52B ( figure 5D ) of that hull or chassis 5.
  • Each shutter such as 32g and 32d is furthermore equipped, on its upper and lower edges, with respective slides, such as 61H, 61B, 62H, 62B, rigidly fixed to this flap and holding it in an angular position determined with respect to the plane. going through the slides.
  • Each of the slides such as 61H, 61B, 62H, 62B, further comprises two pins such as 611H, 612H, 611B, 612B, 621H, 622H, 621B, and 622B, aligned along the length of the slides 4H and 4B.
  • lugs are engaged and made prisoners in respective slots, such as 41H, 41B, 42H, 42B, which are formed in the slides 4H and 4B, and wherein these lugs are slidably mounted between two extreme positions.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (9)

  1. Beschallungssystem, das wenigstens gebildet wird aus einem ersten Akustikraum (E1), der mit wenigstens einem Reproduktionsabschnitt (11) für hohe Töne, einem Reproduktionsabschnitt (12) für Töne mittlerer Frequenz und einem Leiter (3) für eine Wellenausbreitung ausgestattet ist, wobei der Leiter (3) einen Eingang (30) aufweist, an welchem dieser die durch einen Wandler (20) des Reproduktionsabschnitts (11) für hohe Töne erzeugten Schallwellen empfängt, und einen Ausgang (31), an welchem die den Leiter (3) verlassenden Schallwellen in einem räumlichen Emissionswinkel ausgebreitet werden, wobei dieser Leiter (3) ferner aufweist, sich quer zu einer Ebene (P) erstreckend, zwei Eingangswände (33g, 33d), die in Bezug zu einer Mittelebene (M), senkrecht zur ersten Ebene (P), symmetrisch sind, zwei Ausgangswände (34g, 34d), ebenfalls symmetrisch in Bezug zu der Mittelebene (M), und zwei bewegliche Flügel (32g, 32d), wobei die Eingangswände (33g, 33d) untereinander einen ersten Winkel (A1) bilden und die Ausgangswände (34g, 34d) jeweils mit den Eingangswänden (33g, 33d) in jeweiligen Verbindungszonen (35g, 35d) verbunden sind und untereinander einen zweiten Winkel (A2) bilden, offener als der erste Winkel (A1), und dem Leiter (3), wenigstens in Projektion in der ersten Ebene (P), eine Form geben, die sich von seinem Eingang (30) zu seinem Ausgang (31) hin erweitert, wobei die beweglichen Flügel (32g, 32d) durch eine parallel zu der ersten Ebene (P) bewirkte Bewegung verschiebbar sind, um einem räumlichen Emissionswinkel einen Wert zu verleihen, der durch Verschieben dieser Flügel (32g, 32d) eingestellt werden kann, dadurch gekennzeichnet, dass dieser erste Raum (E1) zwei Reproduktionsabschnitte (12) für Töne mittlerer Frequenz umfasst, die jeweils an den zwei Eingangswänden (33g, 33d) angeordnet sind, außerhalb des räumlichen Emissionswinkels, und dass jeder bewegliche Flügel (32g, 32d) wenigstens teilweise innerhalb des zweiten Winkels (A2) angeordnet ist, gegenüber einer korrespondierenden Außenwand (34g, 34d) und neben dem Eingang (30) des Leiters (3) durch eine in Bezug zu der korrespondierenden Verbindungszone (35g, 35d) bewegliche Anströmwand (320) begrenzt ist, wobei jeder Flügel somit selektiv, unabhängig von dem anderen Flügel, eine nahe Position oder eine entfernte Position zur korrespondierenden Ausgangswand (34g, 34d) annehmen kann.
  2. Beschallungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der erste Raum (E1) wenigstens einen Reproduktionsabschnitt (13) für tiefe Töne umfasst, die jeweils an den Ausgangswänden (34g, 34d), außerhalb des räumlichen Emissionswinkels, angeordnet sind.
  3. Beschallungssystem nach Anspruch 2, dadurch gekennzeichnet, dass der erste Raum (E1) zwei Reproduktionsabschnitte (13) für tiefe Töne umfasst, die jeweils an den Ausgangswänden (34g, 34d) außerhalb des räumlichen Emissionswinkels angeordnet sind.
  4. Beschallungssystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Abschnitt (11) für hohe Töne einen Wellenleiter (21) umfasst, der den Wandler (20) mit dem Eingang (30) des Ausbreitungsleiters (3) verbindet.
  5. Beschallungssystem nach Anspruch 4, dadurch gekennzeichnet, dass der Wellenleiter (21) gegenüber dem Eingang (30) des Ausbreitungsleiters (3) einen Ausgang (210) in Form eines Spalts aufweist, der in einer Richtung im Wesentlichen quer zur ersten Ebene (P) ausgerichtet ist.
  6. Beschallungssystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Flügel (32g, 32d) einen Winkel ungleich Null mit der korrespondierenden Ausgangswand (34g, 34d) bildet und durch eine parallele Translation zur ersten Ebene (P) beweglich angebracht ist zwischen einer Position relativ schwacher Richtwirkung, in welcher die Anströmwand (320) dieses Flügels (32g, 32d) relativ entfernt von der Verbindungszone (35g, 35d) der korrespondierenden Ausgangswand (34g, 34d) liegt und in welcher die aus dem Ausbreitungsleiter (3) austretenden Schallwellen durch die korrespondierende Ausgangswand (34g, 34d) geleitet werden, und einer Position relativ starker Richtwirkung, in welcher die Anströmwand (320) des Flügels (32g, 32d) relativ nahe der Verbindungszone (35g, 35d) der korrespondierenden Ausgangswand (34g, 34d) oder auf dieser Zone (35g, 35d) aufliegt, und in welcher die Schallwellen, die aus dem Ausbreitungsleiter (3) austreten, durch diesen Flügel (32g, 32d) geleitet werden.
  7. Beschallungssystem nach Anspruch 6, dadurch gekennzeichnet, dass der Angriffsrand (320) jedes Flügels (32g, 32d) im Wesentlichen die gleiche Ausrichtung annimmt, wie die Eingangswand (33g, 33d) mit welcher die korrespondierende Ausgangswand (34g, 34d) verbunden ist und an die Eingangswand (33g, 33d) in der Position starker relativer Richtwirkung des Flügels (32g, 32d) anstößt.
  8. Beschallungssystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der erste Winkel (A1) zwischen 35 Grad und 55 Grad, vorzugsweise zwischen 42 Grad und 48 Grad liegt, dass der zweite Winkel (A2) zwischen 100 Grad und 140 Grad, vorzugsweise zwischen 115 Grad und 125 Grad liegt, und dass jeder Flügel (32g, 32d) mit der Mittelebene (M) einen Winkel (A3) zwischen 20 Grad und 40 Grad, vorzugsweise zwischen 25 Grad und 35 Grad bildet.
  9. Beschallungssystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dieses ferner wenigstens einen zweiten Akustikraum (E7) umfasst, der ähnlich dem ersten (E1) ist und wenigstens mit dem ersten Raum (E1) ein eindimensionales Netz (LSA) von Schallquellen bildet, die sich in einer Richtung im Wesentlichen quer zur ersten Ebene (P) erstrecken, wobei der zweite Raum (E7) bewegliche Flügel (32g, 32d) umfasst, die unabhängig von den beweglichen Flügeln (32g, 32d) des ersten Raums (E1) verschiebbar sind.
EP05291876A 2004-09-13 2005-09-12 Beschallungsanlage mit einstellbarer Richtwirkung Not-in-force EP1635606B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0409688A FR2875367B1 (fr) 2004-09-13 2004-09-13 Systeme de sonorisation directivite reglable

Publications (2)

Publication Number Publication Date
EP1635606A1 EP1635606A1 (de) 2006-03-15
EP1635606B1 true EP1635606B1 (de) 2010-03-31

Family

ID=34951673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291876A Not-in-force EP1635606B1 (de) 2004-09-13 2005-09-12 Beschallungsanlage mit einstellbarer Richtwirkung

Country Status (8)

Country Link
US (1) US7751581B2 (de)
EP (1) EP1635606B1 (de)
AT (1) ATE463133T1 (de)
DE (1) DE602005020225D1 (de)
DK (1) DK1635606T3 (de)
ES (1) ES2345259T3 (de)
FR (1) FR2875367B1 (de)
PT (1) PT1635606E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021104822A1 (de) 2021-03-01 2022-09-01 Rüdiger Lanz Schallwellenleitsystem (Wave guide) zur Schallwiedergabe bei Lautsprechern

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2425436B (en) * 2005-04-21 2007-06-06 Martin Audio Ltd Acoustic loading device for loudspeakers
US7607512B2 (en) * 2005-08-23 2009-10-27 Ronald Paul Harwood Speaker assembly for a structural pole and a method for mounting same
ES2315086B1 (es) * 2006-03-28 2010-01-08 Triple Onda, S.A. Caja acustica del tipo line-array, en especial para la sonorizacion de espacios de gran magnitud.
DE202007015371U1 (de) 2007-11-03 2009-03-19 Schwarzmüller, Heinz Lautsprecher
DE102008010524B4 (de) 2008-02-22 2016-01-28 D & B Audiotechnik Gmbh Lautsprecherbox mit variabler Abstrahlcharakteristik
JP2014519293A (ja) * 2011-06-09 2014-08-07 コーニンクレッカ フィリップス エヌ ヴェ オーディオスピーカ装置
CN103428603B (zh) * 2012-05-16 2016-04-27 顾康 一种可调角度的高频声波导向槽
CN103578461B (zh) * 2012-07-31 2016-04-06 顾康 一种可调角度非对称高频声波控制器
WO2015063377A1 (fr) * 2013-10-30 2015-05-07 L Acoustics Systeme de sonorisation a directivite reglable ameliore
EP3284268B1 (de) * 2015-04-14 2021-11-10 Meyer Sound Laboratories, Incorporated Anordnungsfähiger lautsprecher mit konstanter strahlbreite
KR102359269B1 (ko) * 2015-08-18 2022-02-07 삼성전자주식회사 스피커 장치
US9716942B2 (en) * 2015-12-22 2017-07-25 Bose Corporation Mitigating effects of cavity resonance in speakers
US9712911B2 (en) * 2015-12-22 2017-07-18 Bose Corporation Conformable adaptors for diffraction slots in speakers
CN108464010B (zh) * 2016-01-14 2020-04-14 哈曼国际工业有限公司 表面安装式扬声器的多路径声壁耦合
DE102016014391A1 (de) 2016-12-02 2018-06-07 Harmonic Design Audiotechnik Gmbh Lautsprecherbox mit mehreren Schallquellen
US11044551B2 (en) 2016-12-30 2021-06-22 Harman International Industries, Incorporated Acoustic horn for an acoustic assembly
FR3062233B1 (fr) * 2017-01-24 2020-03-20 L-Acoustics Systeme de diffusion sonore
US10870985B2 (en) 2017-05-03 2020-12-22 Illinois Tool Works Inc. Concrete slab load transfer and connection apparatus and method of employing same
FR3072840B1 (fr) 2017-10-23 2021-06-04 L Acoustics Arrangement spatial de dispositifs de diffusion sonore
CN109511049A (zh) * 2018-12-11 2019-03-22 珠海惠威科技有限公司 一种声场辐射可调的音箱
EP3840401B1 (de) * 2019-12-16 2023-08-09 Bose Corporation Anpassungsfähige wellenleiter
USD944771S1 (en) * 2020-04-02 2022-03-01 L-Acoustics Loudspeaker
USD944770S1 (en) * 2020-04-02 2022-03-01 L-Acoustics Loudspeaker
BE1028524B1 (nl) * 2020-07-31 2022-02-28 Aed Distrib Nv Lijnbronluidsprekerinrichting
DE102021203632A1 (de) * 2021-04-13 2022-10-13 Kaetel Systems Gmbh Lautsprecher, Signalprozessor, Verfahren zum Herstellen des Lautsprechers oder Verfahren zum Betreiben des Signalprozessors unter Verwendung einer Dual-Mode-Signalerzeugung mit zwei Schallerzeugern
WO2022236240A2 (en) * 2021-05-05 2022-11-10 Sonos, Inc. Waveguides for side-firing audio transducers
WO2023286026A1 (ru) * 2021-07-16 2023-01-19 БОГУСЛАВСКИЙ, Евгений Громкоговоритель

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020071580A1 (en) * 2000-07-31 2002-06-13 Mark Engebretson Line array speakers rigging system
EP1333698A2 (de) * 2002-01-31 2003-08-06 Martin Audio Limited Richtlautsprecher
WO2004006621A1 (en) * 2002-07-09 2004-01-15 Outline Di Noselli G. & C. S.N.C. Single and multiple reflection wave guide

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB404937A (en) * 1932-07-14 1934-01-15 William Robertson Millar Improvements in sound-modifying devices for loud speakers or the like
FR2627886B1 (fr) 1988-02-29 1994-05-13 Heil Christian Guide d'onde sonore cylindrique
US5020630A (en) * 1989-12-08 1991-06-04 Electro-Voice, Inc. Loudspeaker and horn therefor
JPH07143588A (ja) * 1993-11-12 1995-06-02 Hisaji Nakamura 垂直アレイ型スピーカ装置
US6394223B1 (en) * 1999-03-12 2002-05-28 Clair Brothers Audio Enterprises, Inc. Loudspeaker with differential energy distribution in vertical and horizontal planes
US20020106097A1 (en) * 1999-04-28 2002-08-08 Sound Physics Labs, Inc. Sound reproduction employing unity summation aperture loudspeakers
US6343133B1 (en) * 1999-07-22 2002-01-29 Alan Brock Adamson Axially propagating mid and high frequency loudspeaker systems
US7324654B2 (en) * 2000-07-31 2008-01-29 Harman International Industries, Inc. Arbitrary coverage angle sound integrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020071580A1 (en) * 2000-07-31 2002-06-13 Mark Engebretson Line array speakers rigging system
EP1333698A2 (de) * 2002-01-31 2003-08-06 Martin Audio Limited Richtlautsprecher
WO2004006621A1 (en) * 2002-07-09 2004-01-15 Outline Di Noselli G. & C. S.N.C. Single and multiple reflection wave guide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021104822A1 (de) 2021-03-01 2022-09-01 Rüdiger Lanz Schallwellenleitsystem (Wave guide) zur Schallwiedergabe bei Lautsprechern
WO2022184209A1 (de) 2021-03-01 2022-09-09 Lanz Ruediger Schallwellenleitsystem (wave guide) zur schallwiedergabe bei lautsprechern
DE102021104822B4 (de) 2021-03-01 2023-07-06 Rüdiger Lanz Schallwellenleitsystem (Wave guide) zur Schallwiedergabe bei Lautsprechern

Also Published As

Publication number Publication date
DE602005020225D1 (de) 2010-05-12
ES2345259T3 (es) 2010-09-20
EP1635606A1 (de) 2006-03-15
FR2875367A1 (fr) 2006-03-17
US7751581B2 (en) 2010-07-06
ATE463133T1 (de) 2010-04-15
FR2875367B1 (fr) 2006-12-15
US20060062402A1 (en) 2006-03-23
DK1635606T3 (da) 2010-07-19
PT1635606E (pt) 2010-06-22

Similar Documents

Publication Publication Date Title
EP1635606B1 (de) Beschallungsanlage mit einstellbarer Richtwirkung
FR2679095A1 (fr) Systeme de haut-parleurs avec traitement d'onde acoustique reproduite.
EP0248172B1 (de) Stereophonischer Lautsprecher
FR2553249A1 (fr) Pavillon de haut-parleur couvrant une zone delimitee
EP0008274A1 (de) Unidirektionales akustisches Gehäuse
EP1728409B1 (de) Mit einer geometrischen und elektronischen schallabstrahlsteuerung ausgestattete schalleinrichtung
FR3085247A1 (fr) Dispositif de sonorisation d'un ecran video par reflexion
EP1187094B1 (de) Beschallungsvorrichtung mit einem akustischen Wellenleiter
WO1992007448A1 (fr) Procede pour ameliorer la qualite de la restitution d'une ambiance sonore, et appareil de mise en ×uvre comportant au moins un haut-parleur emettant dans trois directions
CA2928995C (fr) Systeme de sonorisation a directivite reglable amelioree
US20050084126A1 (en) Speaker housing without insulation capable of increasing sound output
EP3469812B1 (de) Elektrodynamischer breitbandwandler für audiokopfhörer und entsprechender audiokopfhörer
FR2955731A1 (fr) Enceinte acoustique comprenant au moins une membrane d'attenuation acoustique
FR2623337A1 (de)
WO2012069708A1 (fr) Enceinte electro-acoustique haute fidelite et procede de fabrication
FR2953635A1 (fr) Dispositif d'absorption acoustique
FR3087987A1 (fr) Dispositif de stereophonie elargie pour enceintes acoustiques monobloc amplifiees
EP4082222A1 (de) Gehäuse zur schalldämpfung durch nachhall
FR2663181A1 (fr) Procede de reproduction de sons et enceinte en vue de sa mise en óoeuvre en vue de couvrir une large bande passante et d'avoir un faible taux de distorsion.
FR2889021A1 (fr) Enceinte acoustique a haut rendement
JP2007049364A (ja) 音響再生装置
EP2164278A2 (de) Monoblock-HiFi-Einheit einer Stereo-Lautsprecherbox
FR2826827A1 (fr) Systeme acoustique hybride
EP1355291A1 (de) Doppeltes Modul mit einem Rohrblatt, insbesondere für ein akkordeonähnliches Instrument
WO2023198967A1 (fr) Grille de haut-parleur avec fonction de directivite sonore

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20060713

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070705

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602005020225

Country of ref document: DE

Date of ref document: 20100512

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20100615

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2345259

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100731

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20110104

BERE Be: lapsed

Owner name: L'ACOUSTICS

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100912

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100331

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20200819

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200929

Year of fee payment: 16

Ref country code: DE

Payment date: 20200924

Year of fee payment: 16

Ref country code: PT

Payment date: 20200910

Year of fee payment: 16

Ref country code: FR

Payment date: 20200928

Year of fee payment: 16

Ref country code: DK

Payment date: 20200922

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20200923

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20200930

Year of fee payment: 16

Ref country code: ES

Payment date: 20201016

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005020225

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20210930

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20211001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210913

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210912

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210930

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20221028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210912

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210913

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230320