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Convention Paper

Wave Field Synthesis of Virtual Sound Sources with Axisymmetric Radiation Pattern Using a Planar Loudspeaker Array

Authors: Fazi, Filippo Maria; Olivieri, Ferdinando; Carpentier, Thibaut; Noisternig, Markus

AES Convention 134 · Paper 8921 · May 2013

Abstract

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.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8921
Publication date
May 6, 2013
Session subject
Spatial Audio
Affiliation
University of Southampton, Southampton, Hampshire, UK; UMR STMS IRCAM-CNRS-UPMC, Paris, France (See document for exact affiliation information.)
Type
Convention Paper