FR993444A - Collecteur-filtre pour la reproduction et la retransmission sonores - Google Patents

Collecteur-filtre pour la reproduction et la retransmission sonores

Info

Publication number
FR993444A
FR993444A FR993444DA FR993444A FR 993444 A FR993444 A FR 993444A FR 993444D A FR993444D A FR 993444DA FR 993444 A FR993444 A FR 993444A
Authority
FR
France
Prior art keywords
retransmission
collector
filter
sound reproduction
reproduction
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
English (en)
Inventor
Francois Macey
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 filed Critical
Application granted granted Critical
Publication of FR993444A publication Critical patent/FR993444A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/345—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 loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR993444D 1949-06-27 1949-06-27 Collecteur-filtre pour la reproduction et la retransmission sonores Expired FR993444A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR993444T 1949-06-27

Publications (1)

Publication Number Publication Date
FR993444A true FR993444A (fr) 1951-10-31

Family

ID=9555661

Family Applications (1)

Application Number Title Priority Date Filing Date
FR993444D Expired FR993444A (fr) 1949-06-27 1949-06-27 Collecteur-filtre pour la reproduction et la retransmission sonores

Country Status (1)

Country Link
FR (1) FR993444A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179203A (en) * 1963-11-29 1965-04-20 Edgar S Transue Speaker re-vibration system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179203A (en) * 1963-11-29 1965-04-20 Edgar S Transue Speaker re-vibration system

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