A low-cost end-fire acoustic radiator has been developed which consists of an array of hotels drilled in a pipe to which is attached a horn compression driver. A mathematical model allows the size, spacing, and number of hotels to be optimized. Prototype pipes were constructed and tested in an anechoic cchamber, and the results show satisfactory agreement between theoretical and measured results.

Authors: Holland, Keith R.; Fahy, Frank J.
Affiliation: Institute of Sound and Vibration Research, University of Southampton, Southampton, UK
JAES Volume 39 Issue 7/8 pp. 540-550; July 1991
Publication Date: July 1, 1991

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