FR2673501A1 - Device for reducing the directional characteristics of loudspeakers of the same acoustic enclosure - Google Patents

Device for reducing the directional characteristics of loudspeakers of the same acoustic enclosure Download PDF

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Publication number
FR2673501A1
FR2673501A1 FR9102689A FR9102689A FR2673501A1 FR 2673501 A1 FR2673501 A1 FR 2673501A1 FR 9102689 A FR9102689 A FR 9102689A FR 9102689 A FR9102689 A FR 9102689A FR 2673501 A1 FR2673501 A1 FR 2673501A1
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FR
France
Prior art keywords
tube
loudspeakers
speakers
acoustic enclosure
reducing
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
FR9102689A
Other languages
French (fr)
Other versions
FR2673501B1 (en
Inventor
Piccaluga Pierre
Perrichon Claude-Annie
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
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Priority to FR9102689A priority Critical patent/FR2673501B1/en
Publication of FR2673501A1 publication Critical patent/FR2673501A1/en
Application granted granted Critical
Publication of FR2673501B1 publication Critical patent/FR2673501B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R1/20—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
    • H04R1/342—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 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
    • H04R1/02—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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band
    • 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

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  • 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)

Abstract

The invention relates to a device creating a pressure difference, which will balance out by creating a flux in which loudspeakers can be placed. The device consists of a tube (1) in which at least one loudspeaker (2) creates two separate areas A and B. During a musical signal, an underpressure C creates a flux D in which one or more loudspeakers will be arranged or held by an arched part (6), in an area defined at 1/2 the length of the tube, all round this tube, or positioned on the wall of this tube. The present invention makes it possible to enhance the musical quality of an acoustic enclosure in the field of audio and audiovisual.

Description

Dispositif pour diminuer les directivités des haut-parleurs d'une même enceinte acoustique.Device for reducing the directivity of the loudspeakers of the same acoustic enclosure.

La présente invention concerne une amélioration des écoutes musica -les avec des enceintes acoustiques.Nous utilisons un flux de dépression
d'air dans lequel sont insérés des haut-parleurs,afin d'harmoniser les
différentes sources sonores d'une enceinte.The present invention relates to an improvement in music listening with acoustic speakers. We use a vacuum flow
of air in which speakers are inserted, in order to harmonize the
different sound sources of a speaker.

I1 est habituellement admis que les haut-parleurs sont placés sur les
faces avant des enceintes,sur des plans parrallèles,plus ou moins avancés,
pour respecter les mises en phases acoustiques,indépendament des emplace
-ments.Il est généralement utilisé différents types de transducteurs
acoustiques (à membrane,à dme,au titane,à ruban...etc...)ayant chacun
leur propre directivité,dont on constate la désagréable agressivité.It is usually accepted that the loudspeakers are placed on the
front faces of the enclosures, on more or less advanced parallel planes,
to respect acoustic phasing, regardless of location
It is generally used different types of transducers
acoustic (membrane, dme, titanium, ribbon ... etc ...) each having
their own directivity, whose unpleasant aggressiveness can be seen.

Selon l'invention,le dispositif va permettre de façon harmonieuse,de
mélanger les molécules de 1 air emis par un haut-parleur,avec les molé
-cules de l'air emis par d'autres haut-parleurs.En effet,on crée un
différentiel de pression dont le flux dû à cette tension va faire l'ob-
-jet d'une zone favorable où lTon placera des haut-parleurs.According to the invention, the device will allow harmoniously, to
mix the molecules of 1 air emitted by a loudspeaker, with the molé
-cules of air emitted by other speakers.
pressure differential whose flux due to this voltage will make the
-jet of a favorable zone where lTon will place speakers.

Selon l'invention,nous prenons un tube de section et forme quelcon -que,dans lequel nous plaçons un haut-parleur,de façon étanche entre
sa partie avant et arriere,créant deux zones distinctes A et B,dans le
tube.According to the invention, we take a tube of any cross section and shape, in which we place a loudspeaker, sealingly between
its front and rear, creating two distinct zones A and B, in the
tube.

Pendant son signal musical,le haut-parleur créera une différence de
pression d'air,aux deux extrémités du tube.Cette différence de pression
d'air cherchera à s'éliminer,par un flux d'air extérieur au tube rejoi
-gnant les deux extrémités.Dans cette zone où l'air a des propriétés
instables,nous pourrons y installer des haut-parleurs libres,tels que
tweeter,médium,haut medium,directement sur le tube,ou dans un voisina
-ge n'excédant pas la distance : de la longueur du tube,en partant de
la paroi de ce tube.La fixation se fera par un bras solidaire de ce tube ou tout autre moyen à convenance respectant la position relative des haut-parleurs,dans cette zone de flux tout autour du tube.During its musical signal, the speaker will create a difference of
air pressure at both ends of the tube, this pressure difference
of air will seek to eliminate itself, by a flow of air outside the rejoined tube
- winning both ends. In this area where air has properties
unstable, we can install free speakers, such as
tweeter, medium, high medium, directly on the tube, or in a neighbor
-ge not exceeding the distance: the length of the tube, starting from
the wall of this tube. The fixing will be done by an arm integral with this tube or any other suitable means respecting the relative position of the speakers, in this flow zone all around the tube.

Selon une possibilité de l'invention,nous prenons un tube de section ronde (I),dans lequel deux haut-parleurs collés face à face (2)et(3) délimitent deux zones distinctes A et B de façon étanche.La différence de pression d'air acoustique C va créer un flux D ayant tendance à anu -lercette différence de pression.Le volume engendré autour du tube est au maximum: i de la longueur du tube,à partir de la paroi de ce tube(l).  According to one possibility of the invention, we take a round section tube (I), in which two loudspeakers glued face to face (2) and (3) delimit two distinct zones A and B in a sealed manner. acoustic air pressure C will create a flow D tending to anu -lercette pressure difference. The volume generated around the tube is at most: i of the length of the tube, from the wall of this tube (l).

Nous plaçons dans cette zone un tweeter (4) et un haut-parleur à dôme (5),sur une anse (6) du tube,servant de support. G. i
Le dispositif,selon l'invention,supprime en grande partie,les directi -vités des haut-parleurs et harmonise les émissions sonores de différen- -tes sources de haut-parleurs,apportant ainsi un confort dans le domaine deffil1audio et de l'audiovisuel. We place in this area a tweeter (4) and a dome speaker (5), on a handle (6) of the tube, serving as support. G. i
The device according to the invention largely eliminates the direction of the loudspeakers and harmonizes the sound emissions from different sources of loudspeakers, thus providing comfort in the field of audio and audiovisual .

Claims (5)

REVENDICATIONS I) Dispositif pour harmoniser les différentes sources sonores détermi -nées par différents haut-parleurs (2)(3)(4)(5) d'une enceinte acousti -que,caractérisé en ce qu'un tube (1) comporte un ou plusieurs haut -parleurs(2)(3),qui lorsqu"ils retransmettent un signal musical créeront une différence de pression C aux extrémités du tube.Un flux D en résultera dans lequel sera inséré un ou plusieurs haut-parleurs libres(4)(5) fixés sur une anse (6) solidaire de ce tube (i). Fig. i  I) Device for harmonizing the different sound sources determined by different speakers (2) (3) (4) (5) of an acoustic enclosure, characterized in that a tube (1) comprises one or several speakers (2) (3), which when they retransmit a musical signal will create a pressure difference C at the ends of the tube. A flow D will result in which will be inserted one or more free speakers (4) ( 5) fixed on a handle (6) integral with this tube (i). 2) Dispositif selon la revendication 1) caractérisé en ce que un ou plusieurs haut-parleurs créent un différentiel de pression C,pouvant s'équilibrer à flair libre en dehors du tube. 2) Device according to claim 1) characterized in that one or more speakers create a pressure differential C, which can balance with free flair outside the tube. 3) Dispositif selon la revendication 1) caractérisé en ce que le tube peut avoir une section de forme intérieure différente de l'extérieur et non constante. 3) Device according to claim 1) characterized in that the tube may have a section of internal shape different from the outside and not constant. 4) Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la anse portant les haut-parleurs,puisse porter les haut-parleurs dans le volume limité distant au maximum de :8 de la longueur du tube à partir de la paroi de ce tube et tout autour de ce tube. 4) Device according to any one of the preceding claims, characterized in that the handle carrying the loudspeakers, can carry the loudspeakers in the limited volume distant at most: 8 of the length of the tube from the wall of this tube and all around this tube. 5) Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il n'y a pas de limitations de nombre et de type de haut-parleurs dans la zone prévue à cet effet.  5) Device according to any one of the preceding claims, characterized in that there are no limitations on the number and type of speakers in the area provided for this purpose.
FR9102689A 1991-03-01 1991-03-01 DEVICE FOR DECREASING THE DIRECTIVITIES OF THE SPEAKERS OF THE SAME SOUND ENCLOSURE. Expired - Fee Related FR2673501B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9102689A FR2673501B1 (en) 1991-03-01 1991-03-01 DEVICE FOR DECREASING THE DIRECTIVITIES OF THE SPEAKERS OF THE SAME SOUND ENCLOSURE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102689A FR2673501B1 (en) 1991-03-01 1991-03-01 DEVICE FOR DECREASING THE DIRECTIVITIES OF THE SPEAKERS OF THE SAME SOUND ENCLOSURE.

Publications (2)

Publication Number Publication Date
FR2673501A1 true FR2673501A1 (en) 1992-09-04
FR2673501B1 FR2673501B1 (en) 1993-06-18

Family

ID=9410408

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9102689A Expired - Fee Related FR2673501B1 (en) 1991-03-01 1991-03-01 DEVICE FOR DECREASING THE DIRECTIVITIES OF THE SPEAKERS OF THE SAME SOUND ENCLOSURE.

Country Status (1)

Country Link
FR (1) FR2673501B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8700599U1 (en) * 1987-01-14 1987-02-26 E. Schollmayer Gmbh, 6200 Wiesbaden, De
US4756382A (en) * 1987-03-02 1988-07-12 Hudson Iii Joseph L Loudspeaker having enhanced response at bass frequencies
FR2625844A1 (en) * 1988-01-13 1989-07-13 Audio Design "Push-pull" loudspeaker acoustic system for chambers
FR2627341A1 (en) * 1988-02-12 1989-08-18 Giusto Marc Bass loudspeaker enclosure using opposed vertical deposition - has units mounted in top and bottom of cabinet and directing sound via floor and ceiling to reach listener's ears in phase

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8700599U1 (en) * 1987-01-14 1987-02-26 E. Schollmayer Gmbh, 6200 Wiesbaden, De
US4756382A (en) * 1987-03-02 1988-07-12 Hudson Iii Joseph L Loudspeaker having enhanced response at bass frequencies
FR2625844A1 (en) * 1988-01-13 1989-07-13 Audio Design "Push-pull" loudspeaker acoustic system for chambers
FR2627341A1 (en) * 1988-02-12 1989-08-18 Giusto Marc Bass loudspeaker enclosure using opposed vertical deposition - has units mounted in top and bottom of cabinet and directing sound via floor and ceiling to reach listener's ears in phase

Also Published As

Publication number Publication date
FR2673501B1 (en) 1993-06-18

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