FR615408A - Perfectionnement aux pavillons amplificateurs de sons - Google Patents

Perfectionnement aux pavillons amplificateurs de sons

Info

Publication number
FR615408A
FR615408A FR615408DA FR615408A FR 615408 A FR615408 A FR 615408A FR 615408D A FR615408D A FR 615408DA FR 615408 A FR615408 A FR 615408A
Authority
FR
France
Prior art keywords
pavilions
improvement
sound amplifier
amplifier
sound
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)
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.)
BELCE RADIO ELECTR SOC
Original Assignee
BELCE RADIO ELECTR SOC
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 BELCE RADIO ELECTR SOC filed Critical BELCE RADIO ELECTR SOC
Application granted granted Critical
Publication of FR615408A publication Critical patent/FR615408A/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; 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR615408D 1925-05-11 1926-04-29 Perfectionnement aux pavillons amplificateurs de sons Expired FR615408A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE615408X 1925-05-11

Publications (1)

Publication Number Publication Date
FR615408A true FR615408A (fr) 1927-01-07

Family

ID=3875461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR615408D Expired FR615408A (fr) 1925-05-11 1926-04-29 Perfectionnement aux pavillons amplificateurs de sons

Country Status (1)

Country Link
FR (1) FR615408A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969766C (de) * 1952-04-09 1958-07-17 Telefonbau & Normalzeit Gmbh Schallrundstrahler
US6078676A (en) * 1998-02-13 2000-06-20 Takenaka; Masaaki Speaker system with a three-dimensional spiral sound passage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969766C (de) * 1952-04-09 1958-07-17 Telefonbau & Normalzeit Gmbh Schallrundstrahler
US6078676A (en) * 1998-02-13 2000-06-20 Takenaka; Masaaki Speaker system with a three-dimensional spiral sound passage

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