FR944843A - Application of the loudspeaker to aircraft for a wide distribution of sound towards the earth - Google Patents

Application of the loudspeaker to aircraft for a wide distribution of sound towards the earth

Info

Publication number
FR944843A
FR944843A FR944843DA FR944843A FR 944843 A FR944843 A FR 944843A FR 944843D A FR944843D A FR 944843DA FR 944843 A FR944843 A FR 944843A
Authority
FR
France
Prior art keywords
loudspeaker
aircraft
earth
application
wide distribution
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)
Inventor
Henri Buret De Sainte-Anne
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 FR944843A publication Critical patent/FR944843A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR944843D 1947-03-26 1947-03-26 Application of the loudspeaker to aircraft for a wide distribution of sound towards the earth Expired FR944843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944843T 1947-03-26

Publications (1)

Publication Number Publication Date
FR944843A true FR944843A (en) 1949-04-15

Family

ID=9471970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944843D Expired FR944843A (en) 1947-03-26 1947-03-26 Application of the loudspeaker to aircraft for a wide distribution of sound towards the earth

Country Status (1)

Country Link
FR (1) FR944843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529085A (en) * 1968-01-19 1970-09-15 Charles R Banks Pod audio system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529085A (en) * 1968-01-19 1970-09-15 Charles R Banks Pod audio system

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