FR690965A - Loud speaker - Google Patents

Loud speaker

Info

Publication number
FR690965A
FR690965A FR690965DA FR690965A FR 690965 A FR690965 A FR 690965A FR 690965D A FR690965D A FR 690965DA FR 690965 A FR690965 A FR 690965A
Authority
FR
France
Prior art keywords
loud speaker
loud
speaker
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
Victor-Charles-Mauri Audigier
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 FR690965A publication Critical patent/FR690965A/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
    • H04R1/32—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)
FR690965D 1930-03-01 1930-03-01 Loud speaker Expired FR690965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR690965T 1930-03-01

Publications (1)

Publication Number Publication Date
FR690965A true FR690965A (en) 1930-09-29

Family

ID=9031622

Family Applications (1)

Application Number Title Priority Date Filing Date
FR690965D Expired FR690965A (en) 1930-03-01 1930-03-01 Loud speaker

Country Status (1)

Country Link
FR (1) FR690965A (en)

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