Acoustics – Plural diaphragm sound sources
Patent
1984-05-03
1986-06-10
Fuller, Benjamin R.
Acoustics
Plural diaphragm sound sources
181146, 181147, 181155, H05K 500
Patent
active
045937842
ABSTRACT:
A loudspeaker enclosure is arranged to support an electromagnetic loudspeaker of the type having both front and back acoustic waves, with the front of the speaker registering with a front wave opening in the enclosure and the back of the speaker communicating through a transmission line cavity with a port the plane of which is disposed substantially normal to the plane of the front wave opening and which port is provided with a cross sectional area of about 0.5 to about 2.0 times the operative area of the driver cone of the loudspeaker, thereby giving a highly efficient means of sound propagation. The enclosure may also house high frequency "tweeter" speakers which provide only a front wave. Acoustic murals and other type reflectors and deflectors may be associated with one or more of the enclosures in an assembly within a room to give the illusion of sound emanating from many more sources than there are loudspeaker enclosures.
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Fuller Benjamin R.
Weston, Jr. C. Harold
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