JPS5769993A - Speaker device - Google Patents

Speaker device

Info

Publication number
JPS5769993A
JPS5769993A JP14659280A JP14659280A JPS5769993A JP S5769993 A JPS5769993 A JP S5769993A JP 14659280 A JP14659280 A JP 14659280A JP 14659280 A JP14659280 A JP 14659280A JP S5769993 A JPS5769993 A JP S5769993A
Authority
JP
Japan
Prior art keywords
constitution
atmosphere
thin film
resonance frequency
absorbing material
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
JP14659280A
Other languages
Japanese (ja)
Inventor
Takemasa Horiguchi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP14659280A priority Critical patent/JPS5769993A/en
Publication of JPS5769993A publication Critical patent/JPS5769993A/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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To lower the minimum resonance frequency, by sectioning a totally enclosed type or other type of cabinet into a plurality of closed spaces through thin film, and sealing one or a plurality of substances in which the vapor pressure is at one atmosphere or less at normal temperature to a part or all the enclosed spaces together with sound absorbing material. CONSTITUTION:A totally enclosed type cabinet 1 is sectioned into two closed space with a thin film 3 which can almost be neglected acoustically and no gaseous molecular is permitted entering. In the closed space where no speaker unit 2 is fitted, a sound absorbing material 4 immersed with a substance the vapor pressure of which is at one atmosphere or less at room temperature is sealed. With this constitution, the speaker device can decrease the minimum resonance frequency in comparison with a conventional speaker with the same size.
JP14659280A 1980-10-20 1980-10-20 Speaker device Pending JPS5769993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14659280A JPS5769993A (en) 1980-10-20 1980-10-20 Speaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14659280A JPS5769993A (en) 1980-10-20 1980-10-20 Speaker device

Publications (1)

Publication Number Publication Date
JPS5769993A true JPS5769993A (en) 1982-04-30

Family

ID=15411196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14659280A Pending JPS5769993A (en) 1980-10-20 1980-10-20 Speaker device

Country Status (1)

Country Link
JP (1) JPS5769993A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912686A (en) * 1982-07-13 1984-01-23 Matsushita Electric Ind Co Ltd Speaker system
EP1786235A1 (en) * 2004-08-23 2007-05-16 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
EP1868410A1 (en) * 2005-03-28 2007-12-19 Matsushita Electric Industrial Co., Ltd. Loudspeaker device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912686A (en) * 1982-07-13 1984-01-23 Matsushita Electric Ind Co Ltd Speaker system
JPH0570993B2 (en) * 1982-07-13 1993-10-06 Matsushita Electric Ind Co Ltd
EP1786235A1 (en) * 2004-08-23 2007-05-16 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
JPWO2006022199A1 (en) * 2004-08-23 2008-05-08 松下電器産業株式会社 Speaker device
EP1786235A4 (en) * 2004-08-23 2011-03-09 Panasonic Corp Loudspeaker system
US7974423B2 (en) 2004-08-23 2011-07-05 Panasonic Corporation Loudspeaker system
EP1868410A1 (en) * 2005-03-28 2007-12-19 Matsushita Electric Industrial Co., Ltd. Loudspeaker device
EP1868410A4 (en) * 2005-03-28 2011-04-06 Panasonic Corp Loudspeaker device

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