Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent
1988-12-05
1991-01-01
Isen, Forester W.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
181194, 181195, G10K 1100
Patent
active
049824368
ABSTRACT:
A loudspeaker having two horns defining two soundpaths passing therethrough an input for connection to a driver and an output for broadcasting an acoustic signal is shown to include a central channel connected at one end to the input, the soundpaths being coincident therethrough and a first transition member which defines separate channels for the soundpaths. Such separate channels serving to change the direction of the soundpaths. There is also shown a pair of side channels, the cross-section of the output ends of the side channels are defined by first and second dimensions, wherein the first dimension is larger than the second dimension. A pair of second transition members serve to again change the direction of the soundpaths. Such transition members have an output end defined by first and second dimensions wherein the second dimension is larger than the first dimension. A pair of main channels and a pair of flared outer channels having walls which follow the arc of a circle of constant radius complete the soundpath. Each channel has a cross sectional area which increases outwardly along the soundpath so that at any point downstream from the central channel the cross-sectional area at that point is greater than any preceding cross-sectional area and less than any subsequent cross-sectional area. The increase in cross-sectional area is preferred to be linear.
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Product Literature for the ATLAS BIA-100 Bi-Axial Horn.
Product Literature for the University Sound Cobreflex IIB Folded Sectoral Horn.
Product Literature for the University Sound Cobreflex III Folded Sectoral Horn.
Gai-Tronics
Isen Forester W.
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