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Plane Wave Decomposition of Volume Element Mesh Data Simulations

Sound field simulations at low frequencies usually employ finite element or other mesh based methods. For auralization, output data from these methods need to be converted to a format compatible with auralization methods such as Wave Field Synthesis (WFS), Higher Order Ambisonics (HOA) or binaural reproduction. A method is proposed for converting the mesh data to plane wave components using a circular array of virtual sources centered around the listening position. The method is based on solving sets of linear propagation equations in the frequency domain. Results are presented for two-dimensional examples and numerical issues are discussed.

Authors: Stofringsdal, Bard; Svensson, Peter
Affiliation: Acoustics Group, Department of Electronics and Telecommunications, Norwegian University of Science and Technology, Trondheim, Norway
AES Convention:116 (May 2004) Paper Number:6066 Import into BibTeX
Session Subject:Spatial Perception; Processing and Analysis and Synthesis of Sound

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