Optimisation of the Localisation Performance of Irregular Ambisonic Decoders for Multiple Off-Centre Listeners

Moore, David J. and Wakefield, Jonathan P. (2010) Optimisation of the Localisation Performance of Irregular Ambisonic Decoders for Multiple Off-Centre Listeners. In: 128th Audio Engineering Society Convention, 22-25 May 2010, London, UK.

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Abstract

This paper presents a method for optimising the performance of irregular Ambisonic decoders for multiple offcentre 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.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > QA Mathematics > QA76 Computer software T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Schools:	School of Computing and Engineering > Music Technology and Production Research Group School of Computing and Engineering > Pedagogical Research Group
Related URLs:	Author
Depositing User:	Jonathan Wakefield
Date Deposited:	23 Nov 2010 16:01
Last Modified:	30 Mar 2018 12:46
URI:	http://eprints.hud.ac.uk/id/eprint/9096

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