DE19849401A1 - Circularly radiating horn for loudspeaker system - Google Patents

Circularly radiating horn for loudspeaker system

Info

Publication number
DE19849401A1
DE19849401A1 DE1998149401 DE19849401A DE19849401A1 DE 19849401 A1 DE19849401 A1 DE 19849401A1 DE 1998149401 DE1998149401 DE 1998149401 DE 19849401 A DE19849401 A DE 19849401A DE 19849401 A1 DE19849401 A1 DE 19849401A1
Authority
DE
Germany
Prior art keywords
horn
sound
loudspeaker system
circularly
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Withdrawn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
DE1998149401
Other languages
German (de)
Inventor
Reinhard Anton Bergmann
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 DE1998149401 priority Critical patent/DE19849401A1/en
Publication of DE19849401A1 publication Critical patent/DE19849401A1/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34Arrangements 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
    • H04R1/345Arrangements 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

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  • 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)

Abstract

The horn deflects the sound path (1) of a loudspeaker system away from its original direction and guides it in a rotationally symmetrical body which provides the area increase for a desired mathematical function, such as an exponential function.

Description

Zirkular strahlende Lautsprechersysteme bieten den Vorteil, bei Stereowiedergabe, guter Hörbedingungen nahezu an jeder Stelle des beschallten Raumes. Eine zirkulare Schallabstrahlung wird erreicht durch das Bestrahlen von einem kegelförmigen Körper durch einen Lautsprecher. Der Schall wird an der Mantelfläche reflektiert und zirkular in den Raum abgestrahlt. Diese Form der Schallverteilung hat grundsätzlich den Nachteil von einem geringen Wirkungsgrad. Die vom Lautsprecher abgestrahlte Schallenergie wird vom Kegel teilweise absorbiert und die an dem Kegel vorbei gestrahlte Schallenergie wird nicht in die horizontale Richtung reflektiert. Auch können an den Kanten des Kegels aufgrund von Beugung Interferenzen entstehen, welche den Frequenzgang und somit das Klangbild negativ beeinflussen.Circularly radiating loudspeaker systems offer the advantage of a good stereo reproduction Listening conditions at almost every point in the sonicated room. A circular Sound radiation is achieved by irradiating a conical body a speaker. The sound is reflected on the outer surface and circularly into the room emitted. This form of sound distribution basically has the disadvantage of one low efficiency. The sound energy emitted by the loudspeaker is emitted by the cone partially absorbed and the sound energy radiated past the cone is not in the reflected horizontal direction. Also, due to the edges of the cone Diffraction interferences arise which negatively affect the frequency response and thus the sound image influence.

Hornlautsprecher erzielen einen hohen Wirkungsgrad, denn die durch die Membraneauslenkungen erzeugten Druckunterschiede werden durch das aufgesetzte Horn an die Umgebung optimal angepaßt. Der sehr hohe Wirkungsgrad hat den Nachteil einer stark gerichteten Schallabstrahlung, was den Einsatz dieses Lautsprechertypes in Stereowiedergabesystemen einschränkt (Klinger Lautsprecher und Lautsprechergehäuse für HiFi; Franzis' 19981; Seite 43. . .62/Zeitschrift Klang und Ton; 1/98 13. Jahrgang K10607F; Seite 6. . .11).Horn loudspeakers achieve a high degree of efficiency because the Differences in pressure generated by membrane deflections are caused by the horn the environment optimally adapted. The very high efficiency has the disadvantage of being strong directional sound radiation, which is the use of this type of speaker in Stereo playback systems (Klinger loudspeakers and loudspeaker housings for hi-fi; Franzis' 19981; page 43 ... 62 / magazine Sound and tone; 1/98 13th year K10607F; Page 6. . .11).

Der im Patentanspruch angegebenen Erfindung liegt das Problem zugrunde bei zirkularer Schallabstrahlung den Wirkungsgrad zu erhöhen und die Interferenzen zu minimieren.The invention specified in the claim is based on the problem of circular Sound radiation to increase efficiency and minimize interference.

Dieses Problem wird durch die im Patenanspruch aufgeführten Merkmale gelöst.This problem is solved by the features listed in the patent claim.

Die mit der Erfindung realisierten Vorteile bestehen darin, durch den hohen Wirkungsgrad mit geringerer Verstärkerleistung große Flächen akustisch versorgen zu können. Die minimierten, den Frequenzgang beeinflussenden, Interferenzen erzeugen für den Zuhörer einen klareren und dynamischeren Klangeindruck, was einen optimalen stereofonen Eindruck in weiten Bereichen des Raumes ermöglicht. Das zirkular strahlende Horn wird in Beschallungsanlagen und stereofonen Wiedergabesystemen sowohl im Heim- als auch im professionellen Bereich eingesetzt. The advantages realized with the invention consist in the high efficiency to be able to acoustically supply large areas with lower amplifier power. The minimized, Interferences influencing the frequency response produce a clearer for the listener and more dynamic sound impression, which is an optimal stereophonic impression in wide Allows areas of the room. The circularly radiating horn is used in public address systems and stereophonic playback systems in both the home and professional sectors used.  

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird, im folgenden, am Beispiel eines zirkular strahlenden Hochtonhorns mit Kalottenhochtöner näher beschrieben.An embodiment of the invention is shown in the drawing and is, in following, using the example of a circularly radiating tweeter with dome tweeters described.

Fig. 1 zeigt den Zusammenhang der Draufsicht und der Schnittzeichnung. Fig. 1 shows the relationship between the top view and the sectional drawing.

Fig. 2 zeigt den Schnitt für die nachfolgende Erläuterung. Fig. 2 shows the section for the following explanation.

Das dem Lautsprecher aufgesetzte Horn erweitert sich mit der gewählten mathematischen Funktion, im Beispiel nach einer expotential Funktion. Der Schallweg (1) wird aus der ursprünglichen Richtung rotationssymmetrisch zur Seite geführt. Der gewählte Flächenzuwachs wird, über die Mantelfläche im Schallkanal, beibehalten. Die einzuhaltende Mantelfläche ist immer im rechten Winkel (3) zum vorgegebenen Schallweg.The horn attached to the loudspeaker expands with the selected mathematical function, in the example after an expotential function. The sound path ( 1 ) is guided to the side in a rotationally symmetrical manner from the original direction. The selected increase in area is maintained via the outer surface in the sound channel. The surface area to be observed is always at right angles ( 3 ) to the specified sound path.

So beginnt die Fläche mit 490 mm2 (2), was dem Membrandurchmesser von 25 mm des Kalottenhochtöners entspricht. Dem Schallweg folgend ist nach 10 mm (3) die benötigte Fläche bereits 761 mm2. Der Flächenzuwachs folgt dem Schallweg und gibt so der oberen (5) und unteren (6) Schallführung die Form. Die abschließende Mantelfläche (4) entspricht der für die untere Grenzfrequenz (ca. 1,2 kHz) ermittelten Mundfläche von 6539 mm2. Für andere Frequenzen und Lautsprechertypen ergeben sich folglich andere Abmessungen.So the area starts with 490 mm 2 ( 2 ), which corresponds to the diaphragm diameter of 25 mm of the dome tweeter. Following the sound path, the required area is already 761 mm 2 after 10 mm ( 3 ). The increase in area follows the sound path and thus gives shape to the upper ( 5 ) and lower ( 6 ) sound routing. The final lateral surface ( 4 ) corresponds to the mouth surface of 6539 mm 2 determined for the lower limit frequency (approx.1.2 kHz). For other frequencies and types of speakers, there are therefore different dimensions.

Aus Übersichtsgründen wurde auf eine Darstellung der Abstandsstücke zwischen unterer und oberer Schallführung verzichtet.For reasons of clarity, a representation of the spacers between the lower and top sound guide omitted.

Das verwendete Material ist unkritisch. Für die getesteten Modelle wurde Multiplexsperrholz entsprechender Dicke verwendet aus welchem die Form gedrechselt wurde. Andere Verfahren der Herstellung sind denkbar.The material used is not critical. Multiplex plywood was used for the models tested appropriate thickness used from which the shape was turned. Other procedures the production are conceivable.

Claims (1)

Zirkular strahlendes Horn für Lautsprechersysteme, eingesetzt in Beschallungsanlagen und stereofonen Wiedergabesystemen sowohl im Heim- als auch im professionellen Bereich, dadurch gekennzeichnet, daß das zirkularstrahlende Horn den Schallweg beliebiger Lautsprechersysteme aus der ursprünglichen Richtung ablenkt und in einem rotationssymmetrischen Körper, welcher den Flächenzuwachs für die gewünschte mathematische Funktion gewährleistet, geführt wird und auch die weiteren Hornparameter abbildet.Circularly radiating horn for loudspeaker systems, used in public address systems and stereophonic playback systems both in the home and in the professional sector, characterized in that the circularly radiating horn deflects the sound path of any loudspeaker systems from the original direction and in a rotationally symmetrical body, which increases the surface area for the desired mathematical function is guaranteed, performed and also maps the other horn parameters.
DE1998149401 1998-10-27 1998-10-27 Circularly radiating horn for loudspeaker system Withdrawn DE19849401A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998149401 DE19849401A1 (en) 1998-10-27 1998-10-27 Circularly radiating horn for loudspeaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998149401 DE19849401A1 (en) 1998-10-27 1998-10-27 Circularly radiating horn for loudspeaker system

Publications (1)

Publication Number Publication Date
DE19849401A1 true DE19849401A1 (en) 1999-05-20

Family

ID=7885736

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998149401 Withdrawn DE19849401A1 (en) 1998-10-27 1998-10-27 Circularly radiating horn for loudspeaker system

Country Status (1)

Country Link
DE (1) DE19849401A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102010021879A1 (en) 2010-05-28 2011-12-01 Frank Held Loudspeaker device with circumferential, funnel-shaped sound outlet opening
DE102021104822A1 (en) 2021-03-01 2022-09-01 Rüdiger Lanz Sound wave guide system (wave guide) for sound reproduction in loudspeakers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102010021879A1 (en) 2010-05-28 2011-12-01 Frank Held Loudspeaker device with circumferential, funnel-shaped sound outlet opening
WO2011147902A1 (en) 2010-05-28 2011-12-01 Frank Held Loudspeaker apparatus with circumferential, funnel-like sound outlet opening
US8824718B2 (en) 2010-05-28 2014-09-02 Frank Held Loudspeaker apparatus with circumferential, funnel-like sound outlet opening
DE102021104822A1 (en) 2021-03-01 2022-09-01 Rüdiger Lanz Sound wave guide system (wave guide) for sound reproduction in loudspeakers
WO2022184209A1 (en) 2021-03-01 2022-09-09 Lanz Ruediger Sound wave guide system for sound reproduction in speakers
DE102021104822B4 (en) 2021-03-01 2023-07-06 Rüdiger Lanz Sound wave guide system (wave guide) for sound reproduction in loudspeakers

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee