FR647803A - Loudspeaker without horn - Google Patents

Loudspeaker without horn

Info

Publication number
FR647803A
FR647803A FR647803DA FR647803A FR 647803 A FR647803 A FR 647803A FR 647803D A FR647803D A FR 647803DA FR 647803 A FR647803 A FR 647803A
Authority
FR
France
Prior art keywords
horn
loudspeaker
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
Margarete Schramm
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 FR647803A publication Critical patent/FR647803A/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
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR647803D 1927-11-03 1927-11-03 Loudspeaker without horn Expired FR647803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR647803T 1927-11-03

Publications (1)

Publication Number Publication Date
FR647803A true FR647803A (en) 1928-12-01

Family

ID=9002298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR647803D Expired FR647803A (en) 1927-11-03 1927-11-03 Loudspeaker without horn

Country Status (1)

Country Link
FR (1) FR647803A (en)

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