A number of methods have been proposed for the application of Wave Field Synthesis to the reproduction of sound fields generated by point sources that exhibit a directional radiation pattern. However, a straightforward implementation of these solutions involves a large number of real-time operations that may lead to very high computational load. This paper proposes a simplified method to synthesize virtual sources with axisymmetric radiation patterns using a planar loudspeaker array. The proposed simplification relies on the symmetry of the virtual source radiation pattern and on the far-field approximation, although a near-field formula is also derived. The mathematical derivation of the method is presented and numerical simulations validate the theoretical results.

Authors: Fazi, Filippo Maria; Olivieri, Ferdinando; Carpentier, Thibaut; Noisternig, Markus
Affiliations: University of Southampton, Southampton, Hampshire, UK; UMR STMS IRCAM-CNRS-UPMC, Paris, France(See document for exact affiliation information.)
AES Convention: 134 (May 2013) Paper Number: 8921
Publication Date: May 4, 2013 Import into BibTeX
Subject: Spatial Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=16821

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