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Characterization of the Acoustical Directivity of a Speaker on a Sound Bar Enclosure: A Comparison between Measurements, Boundary Element Method, and a Spheroidal Analytical Model

The directivity of a sound bar of slender shape is analyzed. Measurements are compared to the results of a boundary element method. A good agreement is obtained in the low-mid frequency range. In order to reduce the computing time, a geometrical approximation based on a spheroidal analytical model is also considered. This approximation holds up to a certain frequency. The spheroid shape produces a more regular sound field pattern.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=18274

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