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The Differential Pressure Synthesis Method for Efficient Acoustic Pressure Estimation

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A differential pressure synthesis (DPS) method is proposed which estimates the free-field acoustic pressure on the boundary of an object from its geometry by precalculating a database of pressure changes caused by introducing orthogonal shape deformations to a template shape. Pressures are synthesized using DPS for a two-dimensional shape and a three-dimensional KEMAR head model. The accuracy of pressure estimates compares favorably with the boundary-element method computation provided that shape deformations are moderate in relation to acoustic wavelength.

JAES Volume 51 Issue 7/8 pp. 647-656; July 2003
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AES - Audio Engineering Society