JPS5772495A - Small-sized speaker for sound synthesis - Google Patents

Small-sized speaker for sound synthesis

Info

Publication number
JPS5772495A
JPS5772495A JP55149601A JP14960180A JPS5772495A JP S5772495 A JPS5772495 A JP S5772495A JP 55149601 A JP55149601 A JP 55149601A JP 14960180 A JP14960180 A JP 14960180A JP S5772495 A JPS5772495 A JP S5772495A
Authority
JP
Japan
Prior art keywords
air chamber
diaphragm
releasing hole
acoustic
sound releasing
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
JP55149601A
Other languages
Japanese (ja)
Inventor
Hiroshi Nozaki
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP55149601A priority Critical patent/JPS5772495A/en
Publication of JPS5772495A publication Critical patent/JPS5772495A/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 

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)

Abstract

PURPOSE:To lower the high band limit frequency of a small-sized speaker, by providing an air chamber in front of a diaphragm by the diaphragm and a speaker frame and by utilizing an acoustic filter consisting of this air chamber plus a sound releasing hole formed in the frame. CONSTITUTION:A sound releasing hole 62 is provided in the side part of an air chamber 61 surrounded with a diaphragm 5 and a frame 7. An acoustic filter 6 is formed with the air chamber 61 and the sound releasing hole 62. The diaphragm 5 consists of materials of the synthetic resin having a high airtightness. This acoustic filter becomes a large load for the high band reproducing output by the resonance frequency of this filter determined by the acoustic capacity of the air chamber and the acoustic impedance of the sound releasing hole, and as the result, the high band limit frequency is lowered.
JP55149601A 1980-10-22 1980-10-22 Small-sized speaker for sound synthesis Pending JPS5772495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149601A JPS5772495A (en) 1980-10-22 1980-10-22 Small-sized speaker for sound synthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149601A JPS5772495A (en) 1980-10-22 1980-10-22 Small-sized speaker for sound synthesis

Publications (1)

Publication Number Publication Date
JPS5772495A true JPS5772495A (en) 1982-05-06

Family

ID=15478763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149601A Pending JPS5772495A (en) 1980-10-22 1980-10-22 Small-sized speaker for sound synthesis

Country Status (1)

Country Link
JP (1) JPS5772495A (en)

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