WO2007129774A3 - Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path - Google Patents

Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path Download PDF

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Publication number
WO2007129774A3
WO2007129774A3 PCT/JP2007/059822 JP2007059822W WO2007129774A3 WO 2007129774 A3 WO2007129774 A3 WO 2007129774A3 JP 2007059822 W JP2007059822 W JP 2007059822W WO 2007129774 A3 WO2007129774 A3 WO 2007129774A3
Authority
WO
WIPO (PCT)
Prior art keywords
transmission path
acoustic transmission
speaker system
same
acoustic
Prior art date
Application number
PCT/JP2007/059822
Other languages
French (fr)
Other versions
WO2007129774A2 (en
Inventor
Atsushi Yamada
Original Assignee
Atsushi Yamada
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
Priority claimed from JP2006130871A external-priority patent/JP4847786B2/en
Application filed by Atsushi Yamada filed Critical Atsushi Yamada
Publication of WO2007129774A2 publication Critical patent/WO2007129774A2/en
Publication of WO2007129774A3 publication Critical patent/WO2007129774A3/en

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
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • 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
    • 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
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers

Abstract

Provided is a speaker system having the acoustic transmission path 10 and the driver unit 20 to be connected thereto. The acoustic transmission path 10 has the tube part 1, and an acoustic vibration part alternately arranged with the mass element 3, and the elastic elements 4, in the axis direction of the tube part 1, at the inside of the tube part 1; and the arrangement periodicity of the mass elements and elastic elements makes, propagation velocity of acoustic vibration propagating in said acoustic vibration part at the inside of the tube part 1, set to be less than 1/3 of sound velocity in atmosphere, in a frequency range of from 20 Hz to 200 Hz.
PCT/JP2007/059822 2006-05-09 2007-05-08 Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path WO2007129774A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-130871 2006-05-09
JP2006130871A JP4847786B2 (en) 2005-05-09 2006-05-09 Speaker system

Publications (2)

Publication Number Publication Date
WO2007129774A2 WO2007129774A2 (en) 2007-11-15
WO2007129774A3 true WO2007129774A3 (en) 2008-01-10

Family

ID=38582030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/059822 WO2007129774A2 (en) 2006-05-09 2007-05-08 Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path

Country Status (1)

Country Link
WO (1) WO2007129774A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010015976A2 (en) * 2008-08-06 2010-02-11 Koninklijke Philips Electronics N.V. A loudspeaker arrangement
JP5866751B2 (en) * 2009-11-30 2016-02-17 ヤマハ株式会社 Acoustic resonator and acoustic chamber
CN102843624B (en) * 2012-07-05 2016-08-24 李世煌 Loudspeaker box structure with loading hole
GB2516469A (en) * 2013-07-23 2015-01-28 Richard Warrington George Loudspeaker improvements
CN113906766A (en) * 2019-04-23 2022-01-07 普罗之声有限责任公司 Loudspeaker system, method and apparatus for absorbing loudspeaker acoustic resonances

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126397A (en) * 1980-03-10 1981-10-03 Matsushita Electric Ind Co Ltd Speaker system
CH681843A5 (en) * 1991-01-07 1993-05-28 Maximilian Hobelsberger Bass response improving device for closed housing loudspeaker
US5621804A (en) * 1993-12-28 1997-04-15 Mitsubishi Denki Kabushiki Kaisha Composite loudspeaker apparatus and driving method thereof
US6186269B1 (en) * 1998-12-11 2001-02-13 Edward Vollmer Mini surround sound loudspeaker
US20020154788A1 (en) * 2001-04-19 2002-10-24 Jen-Hui Tsai Speaker system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126397A (en) * 1980-03-10 1981-10-03 Matsushita Electric Ind Co Ltd Speaker system
CH681843A5 (en) * 1991-01-07 1993-05-28 Maximilian Hobelsberger Bass response improving device for closed housing loudspeaker
US5621804A (en) * 1993-12-28 1997-04-15 Mitsubishi Denki Kabushiki Kaisha Composite loudspeaker apparatus and driving method thereof
US6186269B1 (en) * 1998-12-11 2001-02-13 Edward Vollmer Mini surround sound loudspeaker
US20020154788A1 (en) * 2001-04-19 2002-10-24 Jen-Hui Tsai Speaker system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GEDDES E R: "THE ACOUSTIC LEVER LOUDSPEAKER ENCLOSURE", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, AUDIO ENGINEERING SOCIETY, NEW YORK, NY, US, vol. 47, no. 1/2, January 1999 (1999-01-01), pages 3 - 13, XP000823369, ISSN: 1549-4950 *

Also Published As

Publication number Publication date
WO2007129774A2 (en) 2007-11-15

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