Acoustics – Sound-modifying means – Intensifying horn
Patent
1978-12-08
1980-02-12
Tomsky, Stephen J.
Acoustics
Sound-modifying means
Intensifying horn
181187, 181190, G10K 1100
Patent
active
041879260
ABSTRACT:
A loudspeaker horn has a throat section with a rectangular cross section to which the driver unit is coupled. The throat section has substantially parallel side walls joined together by diverging top and bottom walls. The horn has a rectangular mouth which is formed by a bell section which runs between the throat section and the mouth with an angular divergence corresponding to the desired horn dispersion pattern. If the mouth is made square, equal horizontal and vertical low frequency directivity roll off can be provided. On the other hand, with the speaker of the present invention, various relative horizontal and vertical directivity control can be obtained with different aspect ratios for the mouth. The walls of the bell section may be additionally flared outwardly at a portion thereof near the mouth to provide improved midrange directivity control. The use of planar sides between the throat section and the mouth also makes for an improved directivity pattern.
REFERENCES:
patent: 1365249 (1921-01-01), Koehler
patent: 1526819 (1925-02-01), Amoroso
patent: 2071153 (1937-02-01), Abrahams
patent: 2537141 (1951-01-01), Klipsch
patent: 2690231 (1954-09-01), Levy et al.
patent: 4071112 (1978-01-01), Keele, Jr.
Henricksen Clifford A.
Ureda Mark S.
Altec Corporation
Sokolski Edward A.
Tomsky Stephen J.
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