FR2417909A1 - Regulateur de pression (ou charge) acoustique - Google Patents

Regulateur de pression (ou charge) acoustique

Info

Publication number
FR2417909A1
FR2417909A1 FR7804505A FR7804505A FR2417909A1 FR 2417909 A1 FR2417909 A1 FR 2417909A1 FR 7804505 A FR7804505 A FR 7804505A FR 7804505 A FR7804505 A FR 7804505A FR 2417909 A1 FR2417909 A1 FR 2417909A1
Authority
FR
France
Prior art keywords
charge
sound
filter
acoustic pressure
pressure
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
FR7804505A
Other languages
English (en)
Other versions
FR2417909B1 (fr
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.)
THAILLE JEAN LOUIS
Original Assignee
THAILLE JEAN LOUIS
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 THAILLE JEAN LOUIS filed Critical THAILLE JEAN LOUIS
Priority to FR7804505A priority Critical patent/FR2417909A1/fr
Priority to JP50036879A priority patent/JPS55500096A/ja
Priority to PCT/FR1979/000012 priority patent/WO1979000636A1/fr
Publication of FR2417909A1 publication Critical patent/FR2417909A1/fr
Application granted granted Critical
Publication of FR2417909B1 publication Critical patent/FR2417909B1/fr
Granted legal-status Critical Current

Links

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
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means 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
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Dispositif permettant d'améliorer les performances techniques fondamentales des émetteurs de son, notamment la linéarité de la courbe de réponse amplitude-fréquence et l'étendue de la bande passante, par autorégulation de leur pression interne (ou charge acoustique), cela sur toutes les gammes de fréquences reproduites et à n'importe quelle puissance sonore. Il comprend un filtre 1 en matériau poreux et élastique monté sur l'ouverture 2, de forme et de dimensions appropriées, percée dans la cloison 3 du compartiment 4 qui est directement mis en pression par la membrane 5 du haut-parleur. Ce filtre est muni d'un système 6 qui permet de régler sa densité et, ainsi de maintenir la pression (ou charge) 7 constante à une valeur déterminée en ne laissant s'échapper que le surplus. L'invention peut être utilisée pour la fabrication des émetteurs de son perfectionnés, tels que les enceintes acoustiques de haute qualité, ou les haut-parleurs de hautes performances spécialisés dans le médium et l'aigu (tweeter).
FR7804505A 1978-02-17 1978-02-17 Regulateur de pression (ou charge) acoustique Granted FR2417909A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7804505A FR2417909A1 (fr) 1978-02-17 1978-02-17 Regulateur de pression (ou charge) acoustique
JP50036879A JPS55500096A (fr) 1978-02-17 1979-02-13
PCT/FR1979/000012 WO1979000636A1 (fr) 1978-02-17 1979-02-13 Regulateur de pression (ou charge) acoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7804505A FR2417909A1 (fr) 1978-02-17 1978-02-17 Regulateur de pression (ou charge) acoustique

Publications (2)

Publication Number Publication Date
FR2417909A1 true FR2417909A1 (fr) 1979-09-14
FR2417909B1 FR2417909B1 (fr) 1983-11-18

Family

ID=9204710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804505A Granted FR2417909A1 (fr) 1978-02-17 1978-02-17 Regulateur de pression (ou charge) acoustique

Country Status (3)

Country Link
JP (1) JPS55500096A (fr)
FR (1) FR2417909A1 (fr)
WO (1) WO1979000636A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9317345D0 (en) * 1993-08-20 1993-10-06 Centralforce Ltd Loudspeaker
TW200829053A (en) * 2006-12-21 2008-07-01 Global Target Entpr Inc Thin-film type sound source output apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1533829A (fr) * 1966-08-08 1968-07-19 Enceinte pour haut-parleur
DE1437376A1 (de) * 1963-10-04 1968-10-24 Akg Akustische Kino Geraete Reibungswiderstand fuer Mikrophone mit veraenderbarer Richtcharakteristik und/oder veraenderbarem Frequenzgang
BE851924A (fr) * 1976-09-27 1977-08-29 Marantz Co Systeme haut-parleur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138781A (fr) * 1954-09-03 1957-06-19 Goodmans Ind Ltd Coffret de haut-parleur
US4060427A (en) * 1976-04-05 1977-11-29 Ibm Corporation Method of forming an integrated circuit region through the combination of ion implantation and diffusion steps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1437376A1 (de) * 1963-10-04 1968-10-24 Akg Akustische Kino Geraete Reibungswiderstand fuer Mikrophone mit veraenderbarer Richtcharakteristik und/oder veraenderbarem Frequenzgang
FR1533829A (fr) * 1966-08-08 1968-07-19 Enceinte pour haut-parleur
BE851924A (fr) * 1976-09-27 1977-08-29 Marantz Co Systeme haut-parleur

Also Published As

Publication number Publication date
JPS55500096A (fr) 1980-02-21
WO1979000636A1 (fr) 1979-09-06
FR2417909B1 (fr) 1983-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse