JPS5256519A - Electroacoustic transducer - Google Patents

Electroacoustic transducer

Info

Publication number
JPS5256519A
JPS5256519A JP13195975A JP13195975A JPS5256519A JP S5256519 A JPS5256519 A JP S5256519A JP 13195975 A JP13195975 A JP 13195975A JP 13195975 A JP13195975 A JP 13195975A JP S5256519 A JPS5256519 A JP S5256519A
Authority
JP
Japan
Prior art keywords
electroacoustic transducer
phone
cavity
changed
volume
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.)
Pending
Application number
JP13195975A
Other languages
Japanese (ja)
Inventor
Kantaro Takada
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP13195975A priority Critical patent/JPS5256519A/en
Publication of JPS5256519A publication Critical patent/JPS5256519A/en
Pending 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Headphones And Earphones (AREA)

Abstract

PURPOSE:To provide an electroacoustic transducer such as a head-phone, in which the volume of a cavity is changed to make it possible to change the frequency characteristics.
JP13195975A 1975-11-01 1975-11-01 Electroacoustic transducer Pending JPS5256519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13195975A JPS5256519A (en) 1975-11-01 1975-11-01 Electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13195975A JPS5256519A (en) 1975-11-01 1975-11-01 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
JPS5256519A true JPS5256519A (en) 1977-05-10

Family

ID=15070206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13195975A Pending JPS5256519A (en) 1975-11-01 1975-11-01 Electroacoustic transducer

Country Status (1)

Country Link
JP (1) JPS5256519A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298515A (en) * 1976-02-16 1977-08-18 Victor Co Of Japan Ltd Headphone
US7684583B2 (en) 2006-06-29 2010-03-23 Cotron Corporation In-ear type and ear-plug type earphone with adjustable volume of front chamber between speaker and housing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298515A (en) * 1976-02-16 1977-08-18 Victor Co Of Japan Ltd Headphone
JPS5644631B2 (en) * 1976-02-16 1981-10-21
US7684583B2 (en) 2006-06-29 2010-03-23 Cotron Corporation In-ear type and ear-plug type earphone with adjustable volume of front chamber between speaker and housing

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