DE3204702A1 - Exponential horn for loudspeaker systems - Google Patents

Exponential horn for loudspeaker systems

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Publication number
DE3204702A1
DE3204702A1 DE19823204702 DE3204702A DE3204702A1 DE 3204702 A1 DE3204702 A1 DE 3204702A1 DE 19823204702 DE19823204702 DE 19823204702 DE 3204702 A DE3204702 A DE 3204702A DE 3204702 A1 DE3204702 A1 DE 3204702A1
Authority
DE
Germany
Prior art keywords
loudspeaker
horn
inner cone
loudspeaker systems
systems
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.)
Withdrawn
Application number
DE19823204702
Other languages
German (de)
Inventor
Herwig 4905 Spenge Rabeneck
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.)
Individual
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
Application filed by Individual filed Critical Individual
Priority to DE19823204702 priority Critical patent/DE3204702A1/en
Publication of DE3204702A1 publication Critical patent/DE3204702A1/en
Withdrawn legal-status Critical Current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

Abstract

To improve the omnidirectional characteristic of loudspeaker systems, an exponential horn with appropriate inner cone is mounted in front of these systems. The wave front excited by the loudspeaker is continuously converted from the vertical plane into the horizontal plane by the inner cone. It emerges from the circular gap of the horn aperture and describes a frequency-independent absolute omnidirectional radiation. Accurate maintenance of the spacing between the inner cone and the outer horn wall is achieved by at least three spacers.

Description

Beschreibung: Exponentialtrichter fiir Lautsprechersysteme.Description: Exponential funnel for loudspeaker systems.

Die Erfindung betrifft einen Fxponentialtrichter nach dem Oberberiff.The invention relates to an exponential funnel according to the Oberberiff.

Das Sprach- oder Muniksignal, welches von einem elektroakustischen Wandler abgestrahlt wird, soll über den gesamten Frequenzbereich ein kreisförmiges Richtdiagramm aufweisen.Ist dieses gewährleistet, so entsteht ein äußerst räumliches und naturgetreues Klangbild im Abhörraum.The voice or radio signal, which is generated by an electroacoustic Transducer is emitted, should be circular over the entire frequency range If this is guaranteed, the result is an extremely spatial one and lifelike sound in the listening room.

Es ist bekannt, daß zur räumlichen Schallabstrahlung Methoden angewendet werden wie die Benutzung von Kalottenlautsprechern oder das Prinzip des Walsh- Transmissionline- Lautsprechers ( U.S.-Patent 3,424,873 ).Weiterhin ist es möglich, eine Vertikalreihe einzelner gleicher Konuslautsprecher in einem bestimmten Winkel zueinander anzuordnen oder eine Akustiklinse vor einen Lautsprecher zu montieren, um eine diffuse Strahlung zu erreichen. (Klinger, Hans Herbert. Lautsprecher und Lautsprechergehause ftir MiFi - 9.;neu bearb. und erw. Aufl.It is known that methods are used for spatial sound radiation like the use of dome loudspeakers or the principle of the Walsh transmission line Loudspeaker (U.S. Patent 3,424,873). It is also possible to have a vertical row to arrange individual identical cone speakers at a certain angle to each other or to mount an acoustic lens in front of a loudspeaker to avoid diffuse radiation to reach. (Klinger, Hans Herbert. Loudspeaker and loudspeaker housing for MiFi - 9th; revised and exp. Ed.

München FRANZIS -Verlag 1978. RPB- electronic Taschenbücher; Nr. 105. ISBN 3-7723-1059-1 ; Seite 73 bis 75 ) Unter Ausnutzung des Beugungseffektes werden Konuslautsprecher vor eine Schallwand mit spaltförmiger Rffnung befestigt. Ist die abgestrahlte ''iellenlänge größer als die Spaltbreite, kommt es zu einer diffusen Strahlung.Munich FRANZIS publishing house 1978. RPB electronic paperbacks; No. 105. ISBN 3-7723-1059-1; Pages 73 to 75) Taking advantage of the diffraction effect Cone loudspeaker fastened in front of a baffle with a gap-shaped opening. Is the If the emitted wavelength is greater than the width of the slit, it becomes diffuse Radiation.

Sämtliche oben genannten Verfahren sind nicht in der Lage, eine völlig kreisförmige Schallabstrahlung mit konstanter Lautstärke zu erzeugen. sinne Ausnahme ist der Walsh- Transmissionline- Lautsprecher s.o. ;jedoch ist der Wirkungsgrad funktionsbedingt sehr gering.Perforierte Platten sowie Akustiklinsen mindern den Wirkungsgrad und die Höchsttonwiedergabe der Lautsprecher.All of the above procedures are not capable of one completely generate circular sound radiation with constant volume. sense exception is the Walsh transmission line loudspeaker see above; however, the efficiency is Very little due to the function. Perforated plates and acoustic lenses reduce this Efficiency and the maximum sound reproduction of the loudspeakers.

Der Erfindung liegt die Aufgabe zugrunde, eine frequenzunabhängige 560 O Schallabstrahlung zu erzielen und gleichzeitig den Wirkungsgrad sowie das Fin- und Ausschwingverhalten des Lautsprechersystems zu verbessern.The invention is based on the object of a frequency-independent 560 O sound radiation and at the same time the efficiency and the To improve the fin and decay behavior of the loudspeaker system.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine in dem Trichter befindliche Form den Schall derart verteilt, daß eine diffuse Schallstrahlung entsteht d.h.This object is achieved in that one in the Funnel located shape distributes the sound in such a way that a diffuse sound radiation arises i.e.

ein kreisförmiges Pichtdiagramm über den gesamten Frequenzgang-beschreibt.describes a circular pitch diagram over the entire frequency response.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß konventionelle Lautsprecher (Konus-oder Druckkammerlautsprecher etc ) mit Hilfe des im Oberbegriff gekennzeichneten Horns in der Lage sind, eine absolut kreisförmige Strahlung zu realisieren und gleichzeitig den Wirkungsgrad des Systems (der Systeme) zu verbessern.The advantages achieved with the invention are in particular: that conventional loudspeakers (cone or pressure chamber loudspeakers etc) with the help of the horn identified in the preamble are able to have an absolutely circular shape Realize radiation and at the same time increase the efficiency of the system (s) to improve.

Es treten keinerleih Interferenzprobleme auf.There are no interference problems.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt (übersichtlichkeitshalber ohne Distanzstiicke).Sie zeigt den Schnitt durch das im Oberbegriff gekennzeichnete Norm. Die Grundfläche des Trichtern ist kreisrund. Abmessungen, Form des Umlenkteils owie die Trichtorkonstante sin je nach Frequenzeinsatzbereich infolge des zugrundeliegenden Fxnonentialgesetzes entsprechend ausgelegt.Die am Trichteranfang entstehende Wellenfront (oben) wird durch die im Horn befindliche Form stetig in die horizontale Ebene iiberführt, derart, daß es zu einer Schallstrahlung von 360 ° kommt.An exemplary embodiment is shown in the drawing (for the sake of clarity without spacers) It shows the section through what is identified in the preamble Standard. The base of the funnel is circular. Dimensions, shape of the deflection part o how the funnel constant sin depending on the frequency range as a result of the underlying The wave front arising at the beginning of the funnel is designed accordingly (above) is continuously transferred into the horizontal plane by the shape in the horn, in such a way that it comes to a sound radiation of 360 °.

LeerseiteBlank page

Claims (1)

Patentansprüche: Exponentialtrichter für Lautsprechersysteme insbesondere für den Einsatz in der HiFi - Technik; dadurch -gekennzeichflet,daß eine in dem Trichter befindliche Form den Schall derart verteilt,daß eine diffuse Schallstrahlung entsteht.Claims: Exponential funnel for loudspeaker systems in particular for use in hi-fi technology; -gekennzeichflet that one in the Funnel located shape distributes the sound in such a way that a diffuse sound radiation arises. (Kreisförmiges Richtdiagramm über den gesamten Frequenzgang.)(Circular directional diagram over the entire frequency response.)
DE19823204702 1982-02-11 1982-02-11 Exponential horn for loudspeaker systems Withdrawn DE3204702A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823204702 DE3204702A1 (en) 1982-02-11 1982-02-11 Exponential horn for loudspeaker systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823204702 DE3204702A1 (en) 1982-02-11 1982-02-11 Exponential horn for loudspeaker systems

Publications (1)

Publication Number Publication Date
DE3204702A1 true DE3204702A1 (en) 1983-08-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823204702 Withdrawn DE3204702A1 (en) 1982-02-11 1982-02-11 Exponential horn for loudspeaker systems

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DE (1) DE3204702A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339837A1 (en) * 1983-11-01 1985-06-13 Stefan 1000 Berlin Hagel Acoustic horn
DE4108409A1 (en) * 1990-12-19 1991-08-22 Helmut Pluemacher Acoustic coupler for loudspeaker - uses ring shaped horn structure formed from two circular shells standing back to back
EP0847223A1 (en) * 1996-12-05 1998-06-10 Adolf Weigl Conical attachment for a loudspeaker and a loudspeaker arrangment comprising such an attachment
DE102007019450A1 (en) * 2007-04-10 2008-10-16 Michael Schwahn Omnidirectional radiating and receiving horn has two volume bodies mounted one above other at distance from each other, where lower volume body has tubular horn neck

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248061A (en) * 1924-11-25 1926-02-25 Edward Alfred Graham Improvements in or relating to loud speaking telephonic receivers
US1943499A (en) * 1928-04-06 1934-01-16 Rca Corp Sound amplifier
GB439009A (en) * 1934-03-09 1935-11-27 Telefunken Gmbh Improvements in or relating to public address systems
DE1086750B (en) * 1957-11-12 1960-08-11 Ludwig Schindler Dipl Ing Loudspeaker arrangement with delayed radiation of the indirect sound
US3424873A (en) * 1964-07-15 1969-01-28 Lincoln Walsh Coherent-sound loudspeaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248061A (en) * 1924-11-25 1926-02-25 Edward Alfred Graham Improvements in or relating to loud speaking telephonic receivers
US1943499A (en) * 1928-04-06 1934-01-16 Rca Corp Sound amplifier
GB439009A (en) * 1934-03-09 1935-11-27 Telefunken Gmbh Improvements in or relating to public address systems
DE1086750B (en) * 1957-11-12 1960-08-11 Ludwig Schindler Dipl Ing Loudspeaker arrangement with delayed radiation of the indirect sound
US3424873A (en) * 1964-07-15 1969-01-28 Lincoln Walsh Coherent-sound loudspeaker

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
H.H. Klinger, Lautsprecher und Laut- sprechergehäuse für HiFi, 9.Aufl., Franzis-Verlag München 1978 *
Radio Electronics, April 1957, S.32-34 *
RPB-electronic-Taschenbücher Nr.105, ISBN 3-7723-1059-1, S.73-75 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339837A1 (en) * 1983-11-01 1985-06-13 Stefan 1000 Berlin Hagel Acoustic horn
DE4108409A1 (en) * 1990-12-19 1991-08-22 Helmut Pluemacher Acoustic coupler for loudspeaker - uses ring shaped horn structure formed from two circular shells standing back to back
EP0847223A1 (en) * 1996-12-05 1998-06-10 Adolf Weigl Conical attachment for a loudspeaker and a loudspeaker arrangment comprising such an attachment
DE19650522A1 (en) * 1996-12-05 1998-06-18 Lion S Motor Sport Trading Com Cone-shaped speaker attachment
DE19650522C2 (en) * 1996-12-05 1998-10-22 Lion S Motor Sport Trading Com Cone-shaped speaker attachment
DE102007019450A1 (en) * 2007-04-10 2008-10-16 Michael Schwahn Omnidirectional radiating and receiving horn has two volume bodies mounted one above other at distance from each other, where lower volume body has tubular horn neck

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