Omnidirectional speaker system

Details Omnidirectional speaker system Omnidirectional speaker system

1994-04-25

1995-09-19

Dang, Khanh

Acoustics

Diaphragm and enclosure

Recessed

181151, 181153, 181155, H05K 500

Patent

active

054517265

ABSTRACT:
An omnidirectional speaker system includes woofer and tweeter speakers mounted in a concave, curved upper housing fabricated of a relatively hard shell exterior and a foam interior, preferably plastic. Beneath the upper housing is a base, including a generally conical phase compensation plug which disperses the sound waves equally in all directions through a circumferential aperture between the upper housing and base. In a preferred embodiment, the cross-sectional shape of the upper housing is parabolic and the cross-sectional shape of the phase compensation plug is hyperbolic. A foam ring is attached to the exterior surface of the upper housing to prevent the formation of a sonic "hot spot" which can lead to a high intensity sonic beam objectionable to listeners.

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