FR594208A - Perfectionnements dans les reproducteurs électromagnétiques du son - Google Patents

Perfectionnements dans les reproducteurs électromagnétiques du son

Info

Publication number
FR594208A
FR594208A FR594208DA FR594208A FR 594208 A FR594208 A FR 594208A FR 594208D A FR594208D A FR 594208DA FR 594208 A FR594208 A FR 594208A
Authority
FR
France
Prior art keywords
electromagnetic sound
sound reproducers
reproducers
electromagnetic
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)
French (fr)
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.)
BRANDES Ltd
Original Assignee
BRANDES Ltd
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 BRANDES Ltd filed Critical BRANDES Ltd
Application granted granted Critical
Publication of FR594208A publication Critical patent/FR594208A/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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
FR594208D 1925-02-27 1925-02-27 Perfectionnements dans les reproducteurs électromagnétiques du son Expired FR594208A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR594208T 1925-02-27

Publications (1)

Publication Number Publication Date
FR594208A true FR594208A (fr) 1925-09-08

Family

ID=8965997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR594208D Expired FR594208A (fr) 1925-02-27 1925-02-27 Perfectionnements dans les reproducteurs électromagnétiques du son

Country Status (2)

Country Link
FR (1) FR594208A (cs)
NL (1) NL16724C (cs)

Also Published As

Publication number Publication date
NL16724C (cs)

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