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.

Authors: Tao, Yufei; Tew, Anthony I.; Porter, Stuart J.
Affiliation: Department of Electronics, University of York, UK
JAES Volume 51 Issue 7/8 pp. 647-656; July 2003
Publication Date: July 15, 2003

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