FR856854A - Devices for sound translation - Google Patents

Devices for sound translation

Info

Publication number
FR856854A
FR856854A FR856854DA FR856854A FR 856854 A FR856854 A FR 856854A FR 856854D A FR856854D A FR 856854DA FR 856854 A FR856854 A FR 856854A
Authority
FR
France
Prior art keywords
devices
sound translation
translation
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
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR856854A publication Critical patent/FR856854A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/08—Microphones
    • 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR856854D 1938-06-30 1939-06-24 Devices for sound translation Expired FR856854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US216684A US2227580A (en) 1938-06-30 1938-06-30 Acoustic device

Publications (1)

Publication Number Publication Date
FR856854A true FR856854A (en) 1940-08-13

Family

ID=22808081

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856854D Expired FR856854A (en) 1938-06-30 1939-06-24 Devices for sound translation

Country Status (3)

Country Link
US (1) US2227580A (en)
FR (1) FR856854A (en)
GB (1) GB530483A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611209A (en) * 1944-08-29 1948-10-27 Standard Telephones Cables Ltd Improvements in or relating to microphones
US2535681A (en) * 1946-08-07 1950-12-26 Bell Telephone Labor Inc Electroacoustic system and means
US2566093A (en) * 1948-06-30 1951-08-28 Rca Corp Means for improving the sensitivity and the response characteristics of velocity microphones
US2699474A (en) * 1950-12-29 1955-01-11 Rca Corp Velocity microphone
US8003878B2 (en) * 2008-08-05 2011-08-23 Gaynier David A Electroacoustic transducer system
EP3879847A1 (en) * 2020-03-10 2021-09-15 Austrian Audio GmbH Microphone circuit for linearizing the proximity effect in a directional microphone

Also Published As

Publication number Publication date
US2227580A (en) 1941-01-07
GB530483A (en) 1940-12-12

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