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Convention Paper

Binaural Ambisonic Decoding with Enhanced Lateral Localization

Authors: Collins, Tim

AES Convention 134 · Paper 8878 · May 2013

Abstract

When rendering an ambisonic recording, a uniform speaker array is often preferred with the number of speakers chosen to suit the ambisonic order. Using this arrangement, localization in the lateral regions can be poor but can be improved by increasing the number of speakers. However, in practice this can lead to undesirable spectral impairment. In this paper a time-domain analysis of the ambisonic decoding problem is presented that highlights how a non-uniform speaker distribution can be used to improve localization without incurring perceptual spectral impairment. This is especially relevant to binaural decoders, where the locations of the virtual speakers are fixed with respect to the head, meaning that the interaction between speakers can be reliably predicted.

Details

Published in
AES Convention 134
AES Convention
134
Paper number
8878
Publication date
May 6, 2013
Session subject
Spatial Audio
Affiliation
University of Birmingham, Birmingham, UK (See document for exact affiliation information.)
Type
Convention Paper