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JPS55143894A - Speaker unit - Google Patents

Speaker unit

Info

Publication number
JPS55143894A
JPS55143894A JP5116379A JP5116379A JPS55143894A JP S55143894 A JPS55143894 A JP S55143894A JP 5116379 A JP5116379 A JP 5116379A JP 5116379 A JP5116379 A JP 5116379A JP S55143894 A JPS55143894 A JP S55143894A
Authority
JP
Japan
Prior art keywords
mass
speaker
vibration system
compliance
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.)
Granted
Application number
JP5116379A
Other languages
Japanese (ja)
Other versions
JPS5919678B2 (en
Inventor
Hiroshi Yano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5116379A priority Critical patent/JPS5919678B2/en
Publication of JPS55143894A publication Critical patent/JPS55143894A/en
Publication of JPS5919678B2 publication Critical patent/JPS5919678B2/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
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm 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 raise the sound pressure level of the low sound band without lowering of the sound pressure of high and middle sound bands, by providing a partition plate in the box where a speaker is fitted and by incorporating a passive radiator into the partition plate. CONSTITUTION:In case that force F applied to speaker 9 is a low frequency, mass of the vibration system becomes mass obtained by adding mass m0 of the vibration system of speaker 9 and mass m of the vibration system of passive radiator 12 when compliance CA1 of the back volume of speaker 9 is small and can be ignored. In case that force F is a middle or high frequency, mass of the vibration system becomes only mass m0 of the vibration system of speaker 9 when compliance CA1 cannot be ignored. Consequently, the sound pressure in the low sound band can be raised by determining properly compliance CA1 and mass m of passive radiator 12.
JP5116379A 1979-04-24 1979-04-24 speaker device Expired JPS5919678B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5116379A JPS5919678B2 (en) 1979-04-24 1979-04-24 speaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5116379A JPS5919678B2 (en) 1979-04-24 1979-04-24 speaker device

Publications (2)

Publication Number Publication Date
JPS55143894A true JPS55143894A (en) 1980-11-10
JPS5919678B2 JPS5919678B2 (en) 1984-05-08

Family

ID=12879147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5116379A Expired JPS5919678B2 (en) 1979-04-24 1979-04-24 speaker device

Country Status (1)

Country Link
JP (1) JPS5919678B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005101896A1 (en) * 2004-04-13 2005-10-27 Matsushita Electric Industrial Co., Ltd. Speaker device
WO2010015976A3 (en) * 2008-08-06 2010-06-17 Koninklijke Philips Electronics N.V. A loudspeaker arrangement with ported subchambers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6171678U (en) * 1984-10-16 1986-05-15
JPH0297473U (en) * 1989-01-18 1990-08-02
JPH0627977U (en) * 1992-09-02 1994-04-15 株式会社イナックス Siphon zette type toilet bowl

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005101896A1 (en) * 2004-04-13 2005-10-27 Matsushita Electric Industrial Co., Ltd. Speaker device
US7477755B2 (en) 2004-04-13 2009-01-13 Panasonic Corporation Speaker system
WO2010015976A3 (en) * 2008-08-06 2010-06-17 Koninklijke Philips Electronics N.V. A loudspeaker arrangement with ported subchambers

Also Published As

Publication number Publication date
JPS5919678B2 (en) 1984-05-08

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