CA2349856A1 - Loudspeakers comprising a phase uncorrelated diffuse sound source - Google Patents

Loudspeakers comprising a phase uncorrelated diffuse sound source Download PDF

Info

Publication number
CA2349856A1
CA2349856A1 CA002349856A CA2349856A CA2349856A1 CA 2349856 A1 CA2349856 A1 CA 2349856A1 CA 002349856 A CA002349856 A CA 002349856A CA 2349856 A CA2349856 A CA 2349856A CA 2349856 A1 CA2349856 A1 CA 2349856A1
Authority
CA
Canada
Prior art keywords
duct
loudspeaker according
panel
sound source
loudspeaker
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.)
Abandoned
Application number
CA002349856A
Other languages
English (en)
French (fr)
Inventor
Graham Bank
Neil Harris
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.)
NVF Tech Ltd
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
Priority claimed from GBGB9824255.5A external-priority patent/GB9824255D0/en
Priority claimed from GBGB9914410.7A external-priority patent/GB9914410D0/en
Application filed by Individual filed Critical Individual
Publication of CA2349856A1 publication Critical patent/CA2349856A1/en
Abandoned 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • 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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Stereophonic System (AREA)
CA002349856A 1998-11-06 1999-11-04 Loudspeakers comprising a phase uncorrelated diffuse sound source Abandoned CA2349856A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9824255.5A GB9824255D0 (en) 1998-11-06 1998-11-06 Loudspeakers
GB9824255.5 1998-11-06
GBGB9914410.7A GB9914410D0 (en) 1999-06-22 1999-06-22 Reflector
GB9914410.7 1999-06-22
PCT/GB1999/003613 WO2000028780A1 (en) 1998-11-06 1999-11-04 Loudspeakers comprising a phase uncorrelated diffuse sound source

Publications (1)

Publication Number Publication Date
CA2349856A1 true CA2349856A1 (en) 2000-05-18

Family

ID=26314618

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002349856A Abandoned CA2349856A1 (en) 1998-11-06 1999-11-04 Loudspeakers comprising a phase uncorrelated diffuse sound source

Country Status (15)

Country Link
EP (1) EP1125472B1 (zh)
JP (1) JP2002530031A (zh)
KR (1) KR20010083946A (zh)
CN (1) CN1140158C (zh)
AT (1) ATE256959T1 (zh)
AU (1) AU746872B2 (zh)
BR (1) BR9915048A (zh)
CA (1) CA2349856A1 (zh)
DE (1) DE69913726D1 (zh)
HK (1) HK1035987A1 (zh)
IL (1) IL142430A0 (zh)
NZ (1) NZ510972A (zh)
RU (1) RU2001115712A (zh)
TW (1) TW462203B (zh)
WO (1) WO2000028780A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581719B2 (en) * 2000-08-02 2003-06-24 Alan Brock Adamson Wave shaping sound chamber
WO2004086812A1 (ja) * 2003-03-25 2004-10-07 Toa Corporation スピーカシステム用音波案内構造およびホーンスピーカ
US7886869B2 (en) 2007-09-27 2011-02-15 Kevin Bastyr Acoustic waveguide mode controlling
JP5188839B2 (ja) * 2008-02-28 2013-04-24 株式会社ジャムコ フラットパネルスピーカー
JP5276956B2 (ja) * 2008-11-13 2013-08-28 浜名湖電装株式会社 電気式ホーン
KR101479823B1 (ko) * 2009-12-02 2015-01-06 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 평면 확성기
JP6044164B2 (ja) * 2011-09-09 2016-12-14 ヤマハ株式会社 音響装置
CN108464012B (zh) 2016-01-14 2020-04-07 哈曼国际工业有限公司 具有浮动波导的双向扬声器
JP7094687B2 (ja) * 2017-10-31 2022-07-04 川崎車両株式会社 鉄道車両の警笛装置
CN115022758A (zh) * 2019-09-20 2022-09-06 广州视源电子科技股份有限公司 电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956636A (en) * 1956-06-11 1960-10-18 Sipko L Boersma Loudspeaker
KR910004063A (ko) * 1988-07-28 1991-02-28 파브리-꽁띠 루까 고충실도 음을 재생하는 장치 및 방법
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
GB9705981D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Personal computers

Also Published As

Publication number Publication date
ATE256959T1 (de) 2004-01-15
IL142430A0 (en) 2002-03-10
CN1324556A (zh) 2001-11-28
EP1125472B1 (en) 2003-12-17
CN1140158C (zh) 2004-02-25
WO2000028780A1 (en) 2000-05-18
AU746872B2 (en) 2002-05-02
BR9915048A (pt) 2001-08-07
EP1125472A1 (en) 2001-08-22
NZ510972A (en) 2002-07-26
AU6480699A (en) 2000-05-29
HK1035987A1 (en) 2001-12-14
JP2002530031A (ja) 2002-09-10
RU2001115712A (ru) 2003-06-10
TW462203B (en) 2001-11-01
DE69913726D1 (de) 2004-01-29
KR20010083946A (ko) 2001-09-03

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Legal Events

Date Code Title Description
FZDE Discontinued