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Convention Paper

Optimization of the Localization Performance of Irregular Ambisonic Decoders for Multiple Off-Center Listeners

Authors: Moore, David; Wakefield, Jonathan

AES Convention 128 · Paper 8061 · May 2010

Abstract

This paper presents a method for optimising the performance of irregular Ambisonic decoders for multiple off-centre listeners. New off-centre evaluation criteria are added to a multi-objective fitness function, based on auditory localization theory, which guides a heuristic search algorithm to derive decoder parameter sets for the ITU 5-speaker layout. The new evaluation criteria are based upon Gerzon’s Metatheory of Auditory Localisation and have been modified to take into account off-centre listening positions. The derived decoders exhibit improved theoretical localisation performance for off-centre listeners. The theoretical results are supported by initial listening test results.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8061
Publication date
May 6, 2010
Session subject
Recording, Production, and Reproduction—Multichannel and Spatial Audio
Affiliation
Glasgow Caledonian University, Glasgow, UK; University of Huddersfield, Huddersfield, West Yorkshire, UK (See document for exact affiliation information.)
Type
Convention Paper