DE19849401A1 - Circularly radiating horn for loudspeaker system - Google Patents
Circularly radiating horn for loudspeaker systemInfo
- 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- Withdrawn
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
- 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
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)
Abstract
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)
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)
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 |
WO2011147902A1 (en) | 2010-05-28 | 2011-12-01 | 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 |
-
1998
- 1998-10-27 DE DE1998149401 patent/DE19849401A1/en not_active Withdrawn
Cited By (7)
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 |
WO2011147902A1 (en) | 2010-05-28 | 2011-12-01 | Frank Held | Loudspeaker apparatus with circumferential, funnel-like sound outlet opening |
DE102010021879A1 (en) | 2010-05-28 | 2011-12-01 | Frank Held | Loudspeaker device with circumferential, funnel-shaped 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 |