EP0252337A2 - Haut-parleur à pavillon à radiation omnidirectionnelle - Google Patents

Haut-parleur à pavillon à radiation omnidirectionnelle Download PDF

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Publication number
EP0252337A2
EP0252337A2 EP87108573A EP87108573A EP0252337A2 EP 0252337 A2 EP0252337 A2 EP 0252337A2 EP 87108573 A EP87108573 A EP 87108573A EP 87108573 A EP87108573 A EP 87108573A EP 0252337 A2 EP0252337 A2 EP 0252337A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
loudspeaker according
shells
sound
pressure chamber
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.)
Granted
Application number
EP87108573A
Other languages
German (de)
English (en)
Other versions
EP0252337A3 (en
EP0252337B1 (fr
Inventor
Pel Dipl.-Ing. Van Neerbos
Dieter Dipl.-Ing. Speck
Christian Dipl.-Ing. Oberschal
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.)
Wandel and Golterman GmbH and Co
Original Assignee
Wandel and Golterman GmbH and Co
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 Wandel and Golterman GmbH and Co filed Critical Wandel and Golterman GmbH and Co
Priority to AT87108573T priority Critical patent/ATE73597T1/de
Publication of EP0252337A2 publication Critical patent/EP0252337A2/fr
Publication of EP0252337A3 publication Critical patent/EP0252337A3/de
Application granted granted Critical
Publication of EP0252337B1 publication Critical patent/EP0252337B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • 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

Definitions

  • the invention relates to an omnidirectional horn loudspeaker according to the preamble of claim 1.
  • Such loudspeakers are used for the sound reinforcement of extensive areas from an elevated location with speech, music or signal tones, e.g. in sound transmission systems in stadiums or in disaster warning systems, and they mostly have sound funnels whose cross-sectional shape follows exponential or hyperbolic functions.
  • An axially radiating horn loudspeaker is also known, to the funnel neck of which two pressure chamber systems are connected with the interposition of a so-called Y-piece.
  • This known loudspeaker has a pronounced butt joint, which causes poor adaptation of the systems.
  • the invention has for its object to improve the adaptation between several pressure chamber systems and the funnel neck in an omnidirectional horn speaker of the type mentioned.
  • the invention solves this problem by the means characterized in claim 1.
  • a standpipe 1 On a standpipe 1, three lower shells 2, 3, 4 and, each below it, three upper shells 5, 6, 7 are arranged.
  • the outer shells 2 and 7 form an upper and a lower end of the overall arrangement consisting of three bell-shaped bodies.
  • the standpipe 1 is covered at the top with a cap 8.
  • the upper shells 5 and 6 and the lower shells 3 and 4 are convex with respect to one another and each form a rotationally symmetrical horn, the cross section of which widens in the radial direction up to a horn mouth indicated by a broken line 9 according to a hyperbolic function and opposes one another radiates down a horizontal plane 10 in the form of a blunt cone, which is generated by rotation of an imaginary center line 11 about a standpipe axis 12.
  • An outer edge region 13 of the lower shells 3 and 4 is frustoconical, which results in a deviation from the specific cross-sectional function.
  • Regions close to the axis of the lower shells 2, 3 and 4 are pulled upwards and form essentially cylindrical receptacles 14 for the standpipe 1 and at the same time parts of the inner boundaries 15 of the funnel neck 1 6 in the case of the funnel-forming shells 3 and 4.
  • Regions close to the axis of the upper shells 5, 6 and optionally 7 are also pulled upwards and likewise form essentially cylindrical receptacles 17 for the standpipe 1.
  • a summing piece which consists of six sound channels 19 there is arranged in a crown around the standpipe axis 12 and slightly inclined towards it are arranged so that an inlet opening of the adjoining funnel neck is formed by the jacket of a truncated cone.
  • Each sound channel 19 carries at its outer (upper) end of a pressure k ammer system 20, where it has a circular cross-section.
  • the lower ends of the six sound channels 19 of a summing piece each have an annular sector-shaped cross section lying between the inner boundary 15 and an outer boundary 18, and together they form an essentially circular opening in which they abut along radial edges 21.
  • the shape of the cross section of each sound channel 19 changes continuously from the circular shape at the upper end to the circular ring sector shape at the lower end.
  • the total cross-sectional area of all sound channels of a summing piece changes from the funnel neck backwards to the pressure chamber systems in such a way that the specific cross-sectional function of the outer sound funnel formed by the shells is continued.
  • the lower shell 4 of the lower horn 4, 6 does not contain any loudspeaker systems on the inside and, depending on its rigidity, it may require support on the standpipe 1.
  • a support body inserted into the lower shell 4 can be used with three ribs 22, which are firmly connected on the one hand to a sleeve 23 comprising the standpipe 1 and which, on the other hand, lie against the bell-shaped shell 4 with inclined, curved edges 24, as is the case with this is shown in a partial section at the bottom right in FIG.

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)
  • Waveguide Aerials (AREA)
EP87108573A 1986-07-09 1987-06-13 Haut-parleur à pavillon à radiation omnidirectionnelle Expired - Lifetime EP0252337B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108573T ATE73597T1 (de) 1986-07-09 1987-06-13 Rundstrahlender hornlautsprecher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3623092A DE3623092C1 (de) 1986-07-09 1986-07-09 Rundstrahlender Hornlautsprecher
DE3623092 1986-07-09

Publications (3)

Publication Number Publication Date
EP0252337A2 true EP0252337A2 (fr) 1988-01-13
EP0252337A3 EP0252337A3 (en) 1989-06-14
EP0252337B1 EP0252337B1 (fr) 1992-03-11

Family

ID=6304755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108573A Expired - Lifetime EP0252337B1 (fr) 1986-07-09 1987-06-13 Haut-parleur à pavillon à radiation omnidirectionnelle

Country Status (3)

Country Link
EP (1) EP0252337B1 (fr)
AT (1) ATE73597T1 (fr)
DE (1) DE3623092C1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000799A1 (fr) * 1987-07-21 1989-01-26 Hughes Aircraft Company Systeme de haut-parleur a ecran de large diffusion
EP0494124A1 (fr) * 1991-01-04 1992-07-08 Majorcom Dispositif de sonorisation omnidirectionnelle
US5146508A (en) * 1990-09-07 1992-09-08 Federal Signal Corporation Omindirectional modular siren
US5784468A (en) * 1996-10-07 1998-07-21 Srs Labs, Inc. Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction
WO2013050797A3 (fr) * 2011-10-04 2013-06-06 Bay Zoltan Haut-parleur
WO2016054099A1 (fr) * 2014-09-30 2016-04-07 Nunntawi Dynamics Llc Pavillon acoustique à multiples moteurs pour une commande de faisceau horizontale
EP3416406A1 (fr) * 2014-09-30 2018-12-19 Apple Inc. Haut-parleur à coloration audio réduite causée par des réflexions à partir d'une surface
US10524044B2 (en) 2014-09-30 2019-12-31 Apple Inc. Airflow exit geometry
AU2018204493B2 (en) * 2014-09-30 2020-04-02 Apple Inc. Loudspeaker
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
US11256338B2 (en) 2014-09-30 2022-02-22 Apple Inc. Voice-controlled electronic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007019450A1 (de) 2007-04-10 2008-10-16 Michael Schwahn Omnidirektional abstrahlender und aufnehmender Schalltrichter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB408844A (en) * 1932-08-12 1934-04-19 Meaf Mach En Apparaten Fab Nv Improvements in and relating to acoustic signalling apparatus
US2550359A (en) * 1946-02-08 1951-04-24 Univ Loudspeakers Inc Loud-speaker mounting
US4310065A (en) * 1979-05-11 1982-01-12 Chromalloy Electronics Corporation Radial horn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813265C (de) * 1949-03-15 1951-09-10 Siemens & Halske A G Rundstrahlender Druckkammerlautsprecher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB408844A (en) * 1932-08-12 1934-04-19 Meaf Mach En Apparaten Fab Nv Improvements in and relating to acoustic signalling apparatus
US2550359A (en) * 1946-02-08 1951-04-24 Univ Loudspeakers Inc Loud-speaker mounting
US4310065A (en) * 1979-05-11 1982-01-12 Chromalloy Electronics Corporation Radial horn

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IRE TRANSACTIONS ON AUDIO, November-Dezember 1956, Seiten 146-156, New York, US; D.W. MARTIN et al.: "An experimental 9000-Watt airborne sound system" *
JOURNAL OF THE AUDIO ENGINEERING SOCIETY, Band 26, Nr. 11, November 1978, Seiten 843-849, New York, US; J.K. HILLIARD: "A study of theatre loud speakers and the resultant development of the shearer two-way horn system" *

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000799A1 (fr) * 1987-07-21 1989-01-26 Hughes Aircraft Company Systeme de haut-parleur a ecran de large diffusion
US4836329A (en) * 1987-07-21 1989-06-06 Hughes Aircraft Company Loudspeaker system with wide dispersion baffle
US5146508A (en) * 1990-09-07 1992-09-08 Federal Signal Corporation Omindirectional modular siren
EP0494124A1 (fr) * 1991-01-04 1992-07-08 Majorcom Dispositif de sonorisation omnidirectionnelle
FR2671445A1 (fr) * 1991-01-04 1992-07-10 Majorcom Dispositif de sonorisation omnidirectionnelle.
US5784468A (en) * 1996-10-07 1998-07-21 Srs Labs, Inc. Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction
WO2013050797A3 (fr) * 2011-10-04 2013-06-06 Bay Zoltan Haut-parleur
US9088849B2 (en) 2011-10-04 2015-07-21 Zoltan Bay Loudspeaker
US10609473B2 (en) 2014-09-30 2020-03-31 Apple Inc. Audio driver and power supply unit architecture
EP3202159B1 (fr) * 2014-09-30 2020-08-05 Apple Inc. Haut-parleur avec réduction de la coloration audio causée par des réflexions à partir d'une surface
US10334355B2 (en) 2014-09-30 2019-06-25 Apple Inc. Multi-driver acoustic horn for horizontal beam control
US10524044B2 (en) 2014-09-30 2019-12-31 Apple Inc. Airflow exit geometry
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
AU2018204493B2 (en) * 2014-09-30 2020-04-02 Apple Inc. Loudspeaker
WO2016054099A1 (fr) * 2014-09-30 2016-04-07 Nunntawi Dynamics Llc Pavillon acoustique à multiples moteurs pour une commande de faisceau horizontale
US10652650B2 (en) 2014-09-30 2020-05-12 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
CN111479205A (zh) * 2014-09-30 2020-07-31 苹果公司 用于水平波束控制的多驱动器声号筒
EP3416406A1 (fr) * 2014-09-30 2018-12-19 Apple Inc. Haut-parleur à coloration audio réduite causée par des réflexions à partir d'une surface
EP3416405B1 (fr) * 2014-09-30 2024-06-12 Apple Inc. Haut-parleur
US20240048895A1 (en) * 2014-09-30 2024-02-08 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
EP3755003A1 (fr) * 2014-09-30 2020-12-23 Apple Inc. Pavillon acoustique multiconducteur pour la commande de faisceau horizontale
US11818535B2 (en) 2014-09-30 2023-11-14 Apple, Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
CN111479205B (zh) * 2014-09-30 2022-02-18 苹果公司 用于水平波束控制的多驱动器声号筒
US11256338B2 (en) 2014-09-30 2022-02-22 Apple Inc. Voice-controlled electronic device
US11290805B2 (en) 2014-09-30 2022-03-29 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
US11693488B2 (en) 2016-09-23 2023-07-04 Apple Inc. Voice-controlled electronic device
US11693487B2 (en) 2016-09-23 2023-07-04 Apple Inc. Voice-controlled electronic device
US10911863B2 (en) 2016-09-23 2021-02-02 Apple Inc. Illuminated user interface architecture
US10834497B2 (en) 2016-09-23 2020-11-10 Apple Inc. User interface cooling using audio component
US10771890B2 (en) 2016-09-23 2020-09-08 Apple Inc. Annular support structure

Also Published As

Publication number Publication date
ATE73597T1 (de) 1992-03-15
DE3623092C1 (de) 1988-02-04
EP0252337A3 (en) 1989-06-14
EP0252337B1 (fr) 1992-03-11

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