EP0505344A1 - Dispositif de reproduction du son sans distorsion mecanique intermodulaire - Google Patents

Dispositif de reproduction du son sans distorsion mecanique intermodulaire Download PDF

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Publication number
EP0505344A1
EP0505344A1 EP92870046A EP92870046A EP0505344A1 EP 0505344 A1 EP0505344 A1 EP 0505344A1 EP 92870046 A EP92870046 A EP 92870046A EP 92870046 A EP92870046 A EP 92870046A EP 0505344 A1 EP0505344 A1 EP 0505344A1
Authority
EP
European Patent Office
Prior art keywords
mechanical
sound reproduction
distorsion
intermodulation
reproduction device
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
EP92870046A
Other languages
German (de)
English (en)
Other versions
EP0505344B1 (fr
Inventor
Ivan Schellekens
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0505344A1 publication Critical patent/EP0505344A1/fr
Application granted granted Critical
Publication of EP0505344B1 publication Critical patent/EP0505344B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2892—Mountings or supports for transducers
    • H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
    • 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

Definitions

  • the invention in question relates to the reproduction of sound without mechanical intermodular distortion due to the mechanical coupling of the different chassis of the loudspeakers by means of a single acoustic enclosure with several loudspeakers.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

Cette invention concerne la reproduction du son sans distorsion mécanique intermodulaire par le découplage mécanique d'au moins deux haut-parleurs dont un ou plusieurs sont alourdis par une masse et sont découplés au moyen d'éléments de suspension, ceci dans une seule enceinte et essentiellement comme décrit et montré dans le dessin en annexe. <IMAGE>

Description

  • L'invention en question concerne la reproduction du son sans distorsion mécanique intermodulaire due au couplage mécanique des différents châssis des haut-parleurs au moyen d'une seule enceinte acoustique avec plusieurs haut-parleurs.
  • On sait que lors de la reproduction du son une influence gênante naît du fait que les haut-parleurs de haute fréquence covibrent avec les haut-parleurs de basse fréquence; ceci donne lieu à une distorsion intermodulaire (I.M.D.). Les hautes fréquences sont modulées sur les basses.
  • Le demandeur a découvert que, par le découplage mécanique des haut-parleurs de haute fréquence vis-à-vis des haut-parleurs de basse fréquence, la modulation mécanique diminue, avec comme résultat une reproduction plus naturelle. Ce découplage mécanique entre les différentes masses se fait par des éléments de suspension.
  • A titre informatif et sans aucune restriction, il est décrit ci-après un exemple réalisé d'après l'invention avec référence au dessin en annexe.
    L'exemple réalisé selon la page 3 se présente comme suit: Dans une même enceinte (5) plusieurs haut-parleurs sont montés, ils sont découplés mécaniquement les uns des autres par des masses (2) et (3) suspendus avec des caoutcoucs (4) dans des tuyaux (6) et (7). Le haut-parleur (1) et la masse (2) forment une seule entité mécanique.
    Grâce à la mise en place et au serrage du boulon de fixation (8), le système est protégé lors du transport. Le boulon de fixation (8) presse la masse (2) contre la masse (3) et la masse (3) contre l'arrière-côté de l'enceinte.
    • CONCLUSIONS.
  • Il est clair que l'invention en question peut être réalisée sous de nombreuses formes sans pour celà sortir du cadre de la revendication suivante.

Claims (1)

  1. Un système pour le découplage mécanique total d'au moins 2 haut-parleurs, dont un ou plusieurs sont alourdis d'une masse et sont découplés par moyen d'éléments de suspension; ceci dans une seule enceinte acoustique et essentiellement selon la description antérieure et représenté par la figure en annexe.
EP19920870046 1991-03-19 1992-03-18 Dispositif de reproduction du son sans distorsion mecanique intermodulaire Expired - Lifetime EP0505344B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100253 1991-03-19
BE9100253A BE1004807A3 (nl) 1991-03-19 1991-03-19 Het weergeven van geluid zonder mechanische intermodulatievervorming.

Publications (2)

Publication Number Publication Date
EP0505344A1 true EP0505344A1 (fr) 1992-09-23
EP0505344B1 EP0505344B1 (fr) 1996-06-05

Family

ID=3885394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920870046 Expired - Lifetime EP0505344B1 (fr) 1991-03-19 1992-03-18 Dispositif de reproduction du son sans distorsion mecanique intermodulaire

Country Status (3)

Country Link
EP (1) EP0505344B1 (fr)
BE (1) BE1004807A3 (fr)
DE (1) DE69211196T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917396A2 (fr) * 1997-11-12 1999-05-19 Genelec OY Méthode et dispositif pour atténuer la résonance mécanique dans un haut-parleur

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001827A (en) * 1977-07-25 1979-02-07 Sony Corp Dynamic loudspeakers
EP0111408A1 (fr) * 1982-12-02 1984-06-20 Celestion International Limited Enceintes de haut-parleur
FR2548854A1 (fr) * 1983-07-07 1985-01-11 Przykorski Karol Enceinte acoustique
EP0158978A2 (fr) * 1984-04-17 1985-10-23 Jürgen Dipl.-Ing. Quaas Montage de transducteurs dans un baffle, en particulier pour haut-parleurs, de préférence pour enceintes acoustiques
DE8528241U1 (de) * 1985-07-11 1986-01-02 Egger, Fredy, Speicher Lautsprechersystem
FR2625639A1 (fr) * 1987-12-30 1989-07-07 Kobus Stanislas Dispositif de fixation pour haut-parleur electrodynamique
US4924964A (en) * 1989-07-24 1990-05-15 Olsen Michael P Loudspeaker enclosure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001827A (en) * 1977-07-25 1979-02-07 Sony Corp Dynamic loudspeakers
EP0111408A1 (fr) * 1982-12-02 1984-06-20 Celestion International Limited Enceintes de haut-parleur
FR2548854A1 (fr) * 1983-07-07 1985-01-11 Przykorski Karol Enceinte acoustique
EP0158978A2 (fr) * 1984-04-17 1985-10-23 Jürgen Dipl.-Ing. Quaas Montage de transducteurs dans un baffle, en particulier pour haut-parleurs, de préférence pour enceintes acoustiques
DE8528241U1 (de) * 1985-07-11 1986-01-02 Egger, Fredy, Speicher Lautsprechersystem
FR2625639A1 (fr) * 1987-12-30 1989-07-07 Kobus Stanislas Dispositif de fixation pour haut-parleur electrodynamique
US4924964A (en) * 1989-07-24 1990-05-15 Olsen Michael P Loudspeaker enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917396A2 (fr) * 1997-11-12 1999-05-19 Genelec OY Méthode et dispositif pour atténuer la résonance mécanique dans un haut-parleur
EP0917396A3 (fr) * 1997-11-12 2004-12-01 Genelec OY Méthode et dispositif pour atténuer la résonance mécanique dans un haut-parleur

Also Published As

Publication number Publication date
BE1004807A3 (nl) 1993-02-02
DE69211196T2 (de) 1997-04-24
EP0505344B1 (fr) 1996-06-05
DE69211196D1 (de) 1996-07-11

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