DE69913726D1 - SPEAKERS WITH PHASE-UNCORRELATED DIFFUSER SOUND SOURCE - Google Patents

SPEAKERS WITH PHASE-UNCORRELATED DIFFUSER SOUND SOURCE

Info

Publication number
DE69913726D1
DE69913726D1 DE69913726T DE69913726T DE69913726D1 DE 69913726 D1 DE69913726 D1 DE 69913726D1 DE 69913726 T DE69913726 T DE 69913726T DE 69913726 T DE69913726 T DE 69913726T DE 69913726 D1 DE69913726 D1 DE 69913726D1
Authority
DE
Germany
Prior art keywords
sound source
phase
uncorrelated
speakers
diffuser
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.)
Expired - Lifetime
Application number
DE69913726T
Other languages
German (de)
Inventor
Neil Harris
Graham Bank
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
New Transducers 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
Priority claimed from GBGB9824255.5A external-priority patent/GB9824255D0/en
Priority claimed from GBGB9914410.7A external-priority patent/GB9914410D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Application granted granted Critical
Publication of DE69913726D1 publication Critical patent/DE69913726D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)

Abstract

A loudspeaker comprising a phase uncorrelated diffuse sound source and a duct or wave guide coupled to the sound source to direct acoustic energy from the source, the duct or wave guide having a substantially parallel section extending from the vicinity of the sound source and a termination positioned remotely from the panel.
DE69913726T 1998-11-06 1999-11-04 SPEAKERS WITH PHASE-UNCORRELATED DIFFUSER SOUND SOURCE Expired - Lifetime DE69913726D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9824255.5A GB9824255D0 (en) 1998-11-06 1998-11-06 Loudspeakers
GBGB9914410.7A GB9914410D0 (en) 1999-06-22 1999-06-22 Reflector
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
DE69913726D1 true DE69913726D1 (en) 2004-01-29

Family

ID=26314618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69913726T Expired - Lifetime DE69913726D1 (en) 1998-11-06 1999-11-04 SPEAKERS WITH PHASE-UNCORRELATED DIFFUSER SOUND SOURCE

Country Status (15)

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

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
JP4351209B2 (en) * 2003-03-25 2009-10-28 ティーオーエー株式会社 Sonic guide structure for speaker system and horn speaker using the same as throat section
US7886869B2 (en) * 2007-09-27 2011-02-15 Kevin Bastyr Acoustic waveguide mode controlling
JP5188839B2 (en) * 2008-02-28 2013-04-24 株式会社ジャムコ Flat panel speaker
JP5276956B2 (en) * 2008-11-13 2013-08-28 浜名湖電装株式会社 Electric horn
EP2508008B1 (en) * 2009-12-02 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Flat loudspeaker
JP6044164B2 (en) * 2011-09-09 2016-12-14 ヤマハ株式会社 Sound equipment
CN108464012B (en) * 2016-01-14 2020-04-07 哈曼国际工业有限公司 Bidirectional loudspeaker with floating waveguide
JP7094687B2 (en) * 2017-10-31 2022-07-04 川崎車両株式会社 Railroad horn device
CN115022758A (en) 2019-09-20 2022-09-06 广州视源电子科技股份有限公司 Electronic device

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 (en) * 1988-07-28 1991-02-28 파브리-꽁띠 루까 Apparatus and method for reproducing high fidelity sound
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
GB9705981D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Personal computers

Also Published As

Publication number Publication date
KR20010083946A (en) 2001-09-03
NZ510972A (en) 2002-07-26
TW462203B (en) 2001-11-01
CN1140158C (en) 2004-02-25
CN1324556A (en) 2001-11-28
EP1125472A1 (en) 2001-08-22
WO2000028780A1 (en) 2000-05-18
RU2001115712A (en) 2003-06-10
HK1035987A1 (en) 2001-12-14
AU746872B2 (en) 2002-05-02
ATE256959T1 (en) 2004-01-15
IL142430A0 (en) 2002-03-10
JP2002530031A (en) 2002-09-10
CA2349856A1 (en) 2000-05-18
BR9915048A (en) 2001-08-07
EP1125472B1 (en) 2003-12-17
AU6480699A (en) 2000-05-29

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Legal Events

Date Code Title Description
8332 No legal effect for de