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 PDFInfo
- 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
Links
- 230000005540 biological transmission Effects 0.000 title abstract 4
- 230000001902 propagating effect Effects 0.000 abstract 1
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
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
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006130871A JP4847786B2 (en) | 2005-05-09 | 2006-05-09 | Speaker system |
JP2006-130871 | 2006-05-09 |
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)
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 |
WO2020219441A1 (en) * | 2019-04-23 | 2020-10-29 | Polk Audio Llc | Loudspeaker system, method and apparatus for absorbing loudspeaker acoustic resonances |
Citations (5)
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 |
-
2007
- 2007-05-08 WO PCT/JP2007/059822 patent/WO2007129774A2/en active Application Filing
Patent Citations (5)
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)
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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