Horn loadspeaker

Details Horn loadspeaker Horn loadspeaker

1992-07-28

1993-08-03

Gellner, Michael L.

Acoustics

Diaphragm and enclosure

With horn

181182, 181184, 181192, H05K 500

Patent

active

052331369

ABSTRACT:
A horn loudspeaker has an opening formed in a wall of a horn, and a tubular duct is provided along the horn and communicated with the opening. The length L of the duct is expressed as, L.perspectiveto.c/4fr-0.4d where c is a velocity of sound, fr is a frequency a sound pressure of which is to be reduced, and d is an inner diameter of the duct.

REFERENCES:
patent: 4893695 (1990-01-01), Tamura et al.
patent: 5115883 (1992-05-01), Morikawa et al.

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