FR971517A - Improvements to acoustic damping devices - Google Patents

Improvements to acoustic damping devices

Info

Publication number
FR971517A
FR971517A FR971517DA FR971517A FR 971517 A FR971517 A FR 971517A FR 971517D A FR971517D A FR 971517DA FR 971517 A FR971517 A FR 971517A
Authority
FR
France
Prior art keywords
damping devices
acoustic damping
acoustic
devices
damping
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.)
Expired
Application number
Other languages
French (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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR971517A publication Critical patent/FR971517A/en
Expired 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • 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
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements 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 
    • H04R1/28—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)
FR971517D 1940-09-05 1940-09-05 Improvements to acoustic damping devices Expired FR971517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971517T 1940-09-05

Publications (1)

Publication Number Publication Date
FR971517A true FR971517A (en) 1951-01-18

Family

ID=9514060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR971517D Expired FR971517A (en) 1940-09-05 1940-09-05 Improvements to acoustic damping devices

Country Status (1)

Country Link
FR (1) FR971517A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324966A (en) * 1966-10-12 1967-06-13 Stephen L Heidrich Electro-acoustic transducers
US3470976A (en) * 1967-12-11 1969-10-07 Procter Brevard High fidelity speaker
FR2507423A1 (en) * 1981-06-04 1982-12-10 Mulidine Sarl Acoustic enclosure for hi=fi loudspeaker - has three linked chambers ensuring resonant frequency is above normal operating range
FR2579852A1 (en) * 1985-03-28 1986-10-03 Jacquet Castellano Patrice High-efficiency acoustic enclosure
EP3169082A1 (en) * 2015-10-20 2017-05-17 Sonion Nederland B.V. Microphone assembly with suppressed frequency response

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324966A (en) * 1966-10-12 1967-06-13 Stephen L Heidrich Electro-acoustic transducers
US3470976A (en) * 1967-12-11 1969-10-07 Procter Brevard High fidelity speaker
FR2507423A1 (en) * 1981-06-04 1982-12-10 Mulidine Sarl Acoustic enclosure for hi=fi loudspeaker - has three linked chambers ensuring resonant frequency is above normal operating range
FR2579852A1 (en) * 1985-03-28 1986-10-03 Jacquet Castellano Patrice High-efficiency acoustic enclosure
EP3169082A1 (en) * 2015-10-20 2017-05-17 Sonion Nederland B.V. Microphone assembly with suppressed frequency response

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