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Summary: A MODAL APPROACH TO SOUNDFIELD REPRODUCTION IN REVERBERANT ROOMS
Terence Betlehem and Thushara D. Abhayapala
National ICT Australia
Research School of Information Sciences and Engineering
The Australian National University
ACT 0200, Australia
Email: [Terence.Betlehem, Thushara.Abhayapala]@anu.edu.au
ABSTRACT
In this paper, we present a novel method of soundfield repro-
duction (SFR) for reverberant acoustic environments. Using
an efficient parametrization of the acoustic transfer function
(ATF) over a region of space, we devise a method for ac-
curate SFR over the whole of the reproduction region. This
method is based on a practical method of determining the
ATF between each loudspeaker and the reproduction region.
1. INTRODUCTION
A problem relevant to emerging surround sound technology
is the reproduction of a soundfield. Using a set of loud-
speakers, it is possible for listeners to fully experience what
it is like to be in the original sound environment. SFR has
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