WO2010015976A3 - A loudspeaker arrangement with ported subchambers - Google Patents

A loudspeaker arrangement with ported subchambers Download PDF

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Publication number
WO2010015976A3
WO2010015976A3 PCT/IB2009/053337 IB2009053337W WO2010015976A3 WO 2010015976 A3 WO2010015976 A3 WO 2010015976A3 IB 2009053337 W IB2009053337 W IB 2009053337W WO 2010015976 A3 WO2010015976 A3 WO 2010015976A3
Authority
WO
WIPO (PCT)
Prior art keywords
subchamber
subchambers
loudspeaker arrangement
audio
radiator
Prior art date
Application number
PCT/IB2009/053337
Other languages
French (fr)
Other versions
WO2010015976A2 (en
Inventor
Okke Ouweltjes
Gerben Kooijman
Joris A. M. Nieuwendijk
Ronaldus M. Aarts
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2010015976A2 publication Critical patent/WO2010015976A2/en
Publication of WO2010015976A3 publication Critical patent/WO2010015976A3/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
    • H04R1/283—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
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements 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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex 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

A loudspeaker arrangement comprises an acoustic enclosure (101) which is divided into at least two subchambers (103, 105). An audio radiator (109) is mounted in a first subchamber (103) of the at least two subchambers (103, 105) such that it radiates outwardly of the acoustic enclosure (101). A port (107) is included for pneumatically connecting the first subchamber (103) and the second subchamber (105). The system is designed such that a Helmholtz frequency of the first subchamber (103) and the port (107) is at least five times higher than a resonance frequency of the audio radiator (109). The loudspeaker arrangement may provide an improved trade-off between sound pressure levels, audio quality and size and may in particular provide improved low frequency performance without introducing disadvantages typically associated with conventional ported speaker and passive radiator designs.
PCT/IB2009/053337 2008-08-06 2009-07-31 A loudspeaker arrangement WO2010015976A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08161882 2008-08-06
EP08161882.9 2008-08-06

Publications (2)

Publication Number Publication Date
WO2010015976A2 WO2010015976A2 (en) 2010-02-11
WO2010015976A3 true WO2010015976A3 (en) 2010-06-17

Family

ID=41664038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/053337 WO2010015976A2 (en) 2008-08-06 2009-07-31 A loudspeaker arrangement

Country Status (1)

Country Link
WO (1) WO2010015976A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2707905C2 (en) * 2018-04-02 2019-12-03 Игорь Анатольевич Савин Acoustic system with slotted adjustable helmholtz resonator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143894A (en) * 1979-04-24 1980-11-10 Matsushita Electric Ind Co Ltd Speaker unit
US4618025A (en) * 1980-09-15 1986-10-21 Sherman Dan R Acoustical ducting for speakers and enclosures
JPH02891A (en) * 1987-12-03 1990-01-05 General Electric Co (Ge) Flexible mutual connection circuit apparatus for matrix addressing type liquid crystal panel
JPH03120195A (en) * 1989-10-02 1991-05-22 Sumikin Butsuriyuu Kk Container carrier having picking function and picking device suspended by container carrier
EP1737266A1 (en) * 2004-04-13 2006-12-27 Matsushita Electric Industrial Co., Ltd. Speaker device
WO2007129774A2 (en) * 2006-05-09 2007-11-15 Atsushi Yamada Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143894A (en) * 1979-04-24 1980-11-10 Matsushita Electric Ind Co Ltd Speaker unit
US4618025A (en) * 1980-09-15 1986-10-21 Sherman Dan R Acoustical ducting for speakers and enclosures
JPH02891A (en) * 1987-12-03 1990-01-05 General Electric Co (Ge) Flexible mutual connection circuit apparatus for matrix addressing type liquid crystal panel
JPH03120195A (en) * 1989-10-02 1991-05-22 Sumikin Butsuriyuu Kk Container carrier having picking function and picking device suspended by container carrier
EP1737266A1 (en) * 2004-04-13 2006-12-27 Matsushita Electric Industrial Co., Ltd. Speaker device
WO2007129774A2 (en) * 2006-05-09 2007-11-15 Atsushi Yamada Acoustic transmission path, speaker system using the same and tube module for assembly kit of acoustic transmission path

Also Published As

Publication number Publication date
WO2010015976A2 (en) 2010-02-11

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