EP1728409B1 - Mit einer geometrischen und elektronischen schallabstrahlsteuerung ausgestattete schalleinrichtung - Google Patents

Mit einer geometrischen und elektronischen schallabstrahlsteuerung ausgestattete schalleinrichtung Download PDF

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Publication number
EP1728409B1
EP1728409B1 EP05736560A EP05736560A EP1728409B1 EP 1728409 B1 EP1728409 B1 EP 1728409B1 EP 05736560 A EP05736560 A EP 05736560A EP 05736560 A EP05736560 A EP 05736560A EP 1728409 B1 EP1728409 B1 EP 1728409B1
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Prior art keywords
electroacoustic
loudspeakers
sources
sound
electroacoustic sources
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EP05736560A
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English (en)
French (fr)
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EP1728409A1 (de
Inventor
Xavier Meynial
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Active Audio
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Active Audio
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    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Claims (11)

  1. Schallvorrichtung, die eine einheitliche Schallabdeckung in einem zu beschallenden Bereich erlaubt, die ein Netz elektroakustischer Quellen (1) umfasst, wobei jede elektroakustische Quelle (1) eine durch eine Verzögerung (3) verzögerte, durch einen Filter (4) gefilterte und durch einen Verstärker (5) verstärkte Version des Eingangssignals der Vorrichtung verbreitet,
    dadurch gekennzeichnet, dass das Netz elektroakustischer Quellen (1) im Wesentlichen geradlinig und vertikal ist, dass die elektroakustischen Quellen (1) entweder an ein und derselben Box (2) oder an Boxen befestigt sind, die mechanisch miteinander verbunden sind, dass die Winkel θ, die von den Sendeachsen der elektroakustische Quellen (1) und der Normalen im Netz gebildet werden, derart sind, dass θn>θn-1 ist, wobei n die Kennziffer der elektroakustischen Quellen (1) ist, die in aufsteigender Reihenfolge von oben nach unten der Vorrichtung nummeriert sind, und dass die Verzögerungen (3) mit den Winkeln θ derart zusammenarbeiten, dass die Vorrichtung eine Wellenfront (6) der Form erzeugt, die der gewollten Schallabdeckung des zu beschallenden Bereichs entspricht.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die Neigungswinkel θ der elektroakustischen Quellen (1) derart ausgewählt sind, dass für jede der elektroakustischen Quellen (1) der Abstand d, der die Mitte der elektroakustischen Quelle von Schnittpunkt zwischen der Sendeachse der elektroakustischen Quelle und der gewollten Wellenfront trennt, minimal ist.
  3. Vorrichtung nach mindestens einem der Ansprüche 1 und 2,
    dadurch gekennzeichnet, dass die Verzögerungen (3) im Wesentlichen
    Rn=Rn-1 +(dn-1-dn)/c n> sind, wobei Rn die Verzögerung (in Sekunden) ist, der n-ten elektroakustischen Quelle zugeordnet, wobei R1 beliebig ist, wobei c die Geschwindigkeit des Tons in m/s ist, wobei die Abstände d in Meter ausgedrückt sind.
  4. Vorrichtung nach mindestens einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass die elektroakustischen Quellen (1) Lautsprecher mit direkter Abstrahlung sind.
  5. Vorrichtung nach Anspruch 4,
    dadurch gekennzeichnet, dass die Lautsprecher mit im Wesentlichen rechteckigen Membranen ausgestattet sind.
  6. Vorrichtung nach mindestens einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass die elektroakustischen Quellen (1) Lautsprecher sind, die anhand von Wellenleitern abstrahlen.
  7. Vorrichtung nach Anspruch 6,
    dadurch gekennzeichnet, dass jeder Wellenleiter durch eine im Wesentlichen rechteckige Öffnung strahlt und derart, dass die spezielle akustische Geschwindigkeit an jedem Punkt der Abstrahlungsöffnung in jedem Augenblick im Wesentlichen dieselbe ist.
  8. Vorrichtung nach mindestens einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass die elektroakustischen Quellen (1) Lautsprechergruppen sind.
  9. Vorrichtung nach Anspruch 8,
    dadurch gekennzeichnet, dass die Lautsprecher einer selben Gruppe benachbart sind, sich in derselben Ebene befinden und vom selben elektrischen Signal erregt werden.
  10. Vorrichtung nach Anspruch 9,
    dadurch gekennzeichnet, dass die Lautsprecher einer selben Gruppe derart verbunden sind, dass die Gruppe im Wesentlichen so strahlt, wie es ein rechtwinkliger Kolben in dem betreffenden Frequenzband tun würde.
  11. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die elektroakustischen Quellen (1) unterschiedliche Höhen haben.
EP05736560A 2004-03-25 2005-03-11 Mit einer geometrischen und elektronischen schallabstrahlsteuerung ausgestattete schalleinrichtung Active EP1728409B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0403052A FR2868237B1 (fr) 2004-03-25 2004-03-25 Dispositif de sonorisation a controle de rayonnement geometrique et electronique
PCT/FR2005/000597 WO2005104609A1 (fr) 2004-03-25 2005-03-11 Dispositif de sonorisation a controle de rayonnement geometrique et electronique

Publications (2)

Publication Number Publication Date
EP1728409A1 EP1728409A1 (de) 2006-12-06
EP1728409B1 true EP1728409B1 (de) 2012-09-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05736560A Active EP1728409B1 (de) 2004-03-25 2005-03-11 Mit einer geometrischen und elektronischen schallabstrahlsteuerung ausgestattete schalleinrichtung

Country Status (5)

Country Link
US (1) US7426278B2 (de)
EP (1) EP1728409B1 (de)
CN (1) CN1965608B (de)
FR (1) FR2868237B1 (de)
WO (1) WO2005104609A1 (de)

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KR101297300B1 (ko) * 2007-01-31 2013-08-16 삼성전자주식회사 스피커 어레이를 이용한 프론트 서라운드 재생 시스템 및그 신호 재생 방법
TWI369142B (en) * 2008-01-22 2012-07-21 Asustek Comp Inc Audio system and a method for detecting and adjusting a sound field thereof
US8848951B2 (en) * 2008-03-13 2014-09-30 Koninklijke Philips N.V. Speaker array and driver arrangement therefor
ITMC20100095A1 (it) 2010-09-17 2012-03-18 F B T Elettronica Spa Array di altoparlanti.
EP2630640A4 (de) * 2010-10-21 2018-04-11 Acoustic 3d Holdings Limited Akustik-diffusor
EP3755003A1 (de) * 2014-09-30 2020-12-23 Apple Inc. Akustische hupe mit mehreren treibern zur horizontalen strahlsteuerung
GB2532794A (en) * 2014-11-28 2016-06-01 Digital Audio S A Versatile electroacoustic diffuser-absorber
WO2017123906A1 (en) 2016-01-14 2017-07-20 Harman International Industries, Inc. Acoustic radiation pattern control
CN109626500A (zh) * 2018-12-20 2019-04-16 余姚市荣大塑业有限公司 一种饮用水杀菌装置和杀菌监管系统

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JP2569872B2 (ja) * 1990-03-02 1997-01-08 ヤマハ株式会社 音場制御装置
JPH07143588A (ja) * 1993-11-12 1995-06-02 Hisaji Nakamura 垂直アレイ型スピーカ装置
NL9401860A (nl) * 1994-11-08 1996-06-03 Duran Bv Luidsprekersysteem met bestuurde richtinggevoeligheid.
GB9506263D0 (en) * 1995-03-28 1995-05-17 Sse Hire Limited Loudspeaker system
US6343133B1 (en) * 1999-07-22 2002-01-29 Alan Brock Adamson Axially propagating mid and high frequency loudspeaker systems
US7027605B2 (en) * 1999-10-20 2006-04-11 Harman International Industries, Incorporated Mid-range loudspeaker
FR2813986B1 (fr) 2000-09-08 2002-11-29 Eric Vincenot Dispositif de sonorisation a guide d'onde acoustique
US7826622B2 (en) * 2003-05-27 2010-11-02 Harman International Industries, Incorporated Constant-beamwidth loudspeaker array

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Title
DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; November 1997 (1997-11-01), SMITH D L: "Discrete-element line arrays-their modeling and optimization", Database accession no. 5812736 *
JOURNAL OF THE AUDIO ENGINEERING SOCIETY AUDIO ENG. SOC. USA, vol. 45, no. 11, pages 949 - 964, ISSN: 0004-7554 *
UREDA ET AL: "Analysis of Loudspeaker Line Arrays", JAES, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, vol. 52, no. 5, 1 May 2004 (2004-05-01), pages 467 - 495, XP040507095 *
WAL VAN DER M ET AL: "DESIGN OF LOGARITHMICALLY SPACED CONSTANT-DIRECTIVITY TRANSDUCER ARRAYS", JOURNAL OF THE AUDIO ENGINEERING SOCIETY, AUDIO ENGINEERING SOCIETY, NEW YORK, NY, US, vol. 44, no. 6, 1 June 1996 (1996-06-01), pages 497 - 507, XP000721403, ISSN: 1549-4950 *

Also Published As

Publication number Publication date
EP1728409A1 (de) 2006-12-06
FR2868237A1 (fr) 2005-09-30
US7426278B2 (en) 2008-09-16
CN1965608A (zh) 2007-05-16
US20070165876A1 (en) 2007-07-19
FR2868237B1 (fr) 2006-05-19
WO2005104609A1 (fr) 2005-11-03
CN1965608B (zh) 2011-08-17

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