FR2358800A1 - Dispositif de prise de son - Google Patents

Dispositif de prise de son

Info

Publication number
FR2358800A1
FR2358800A1 FR7622308A FR7622308A FR2358800A1 FR 2358800 A1 FR2358800 A1 FR 2358800A1 FR 7622308 A FR7622308 A FR 7622308A FR 7622308 A FR7622308 A FR 7622308A FR 2358800 A1 FR2358800 A1 FR 2358800A1
Authority
FR
France
Prior art keywords
plaster
focal point
sound pick
glass block
omnidirectional microphone
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
FR7622308A
Other languages
English (en)
Other versions
FR2358800B1 (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.)
PONTET ROBERT
Original Assignee
PONTET ROBERT
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 PONTET ROBERT filed Critical PONTET ROBERT
Priority to FR7622308A priority Critical patent/FR2358800A1/fr
Publication of FR2358800A1 publication Critical patent/FR2358800A1/fr
Application granted granted Critical
Publication of FR2358800B1 publication Critical patent/FR2358800B1/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
    • H04R1/32—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

Abstract

Le dispositif de prise de son comporte un microphone et a pour but d'éviter l'effet Larsen. Le microphone est placé au foyer d'un paraboloïde et dirigé vers le sommet de celui-ci, lequel réfléchit les sons émis dans un certain angle solide vers son sommet Le microphone est omnidirectionnel. Le paraboloïde peut être formé à partir d'un bloc de plâtre ou de fibres de verre. Le dispositif de prise de son est particulièrement utile dans des systèmes d'audioconférences.
FR7622308A 1976-07-16 1976-07-16 Dispositif de prise de son Granted FR2358800A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7622308A FR2358800A1 (fr) 1976-07-16 1976-07-16 Dispositif de prise de son

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7622308A FR2358800A1 (fr) 1976-07-16 1976-07-16 Dispositif de prise de son

Publications (2)

Publication Number Publication Date
FR2358800A1 true FR2358800A1 (fr) 1978-02-10
FR2358800B1 FR2358800B1 (fr) 1981-09-25

Family

ID=9175982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622308A Granted FR2358800A1 (fr) 1976-07-16 1976-07-16 Dispositif de prise de son

Country Status (1)

Country Link
FR (1) FR2358800A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406239A1 (de) * 1983-02-23 1984-08-23 Compagnie Industrielle des Télécommunications CIT-ALCATEL S.A., Paris Telekonferenztisch
FR2670351A1 (fr) * 1990-12-05 1992-06-12 France Etat Appareil de prise et de restitution du son.
FR2702918A1 (fr) * 1993-03-19 1994-09-23 Prescom Sarl Appareil de prise et de restitution de son, et son application à l'audio-conférence.
US7840013B2 (en) 2003-07-01 2010-11-23 Mitel Networks Corporation Microphone array with physical beamforming using omnidirectional microphones

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3406239A1 (de) * 1983-02-23 1984-08-23 Compagnie Industrielle des Télécommunications CIT-ALCATEL S.A., Paris Telekonferenztisch
FR2541550A1 (fr) * 1983-02-23 1984-08-24 Cit Alcatel Table de teleconference
FR2670351A1 (fr) * 1990-12-05 1992-06-12 France Etat Appareil de prise et de restitution du son.
WO1992010917A1 (fr) * 1990-12-05 1992-06-25 Prescom Dispositif acoustique
FR2702918A1 (fr) * 1993-03-19 1994-09-23 Prescom Sarl Appareil de prise et de restitution de son, et son application à l'audio-conférence.
WO1994022277A1 (fr) * 1993-03-19 1994-09-29 Prescom Appareil de prise et de restitution de son, et son application a l'audio-conference
US7840013B2 (en) 2003-07-01 2010-11-23 Mitel Networks Corporation Microphone array with physical beamforming using omnidirectional microphones

Also Published As

Publication number Publication date
FR2358800B1 (fr) 1981-09-25

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Legal Events

Date Code Title Description
ST Notification of lapse