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Convention Paper

Audio System Spatial Image Evaluation via Binaural Feature Classification

Authors: Kamaris, Gavriil; Karlos, Stamatis; Terpinas, Stergios; Koutsaidis, Dimitris; Mourjopoulos, John

AES Convention 142 · Paper 9761 · May 2017

Abstract

A method for evaluating different audio systems with respect to their spatial reproduction accuracy is described based on binaural auditory feature classification. The classifier is trained to act as expert listener judging system spatial quality and achieves high accuracy for a reference ideal system under anechoic conditions. The trained classifier is then employed to assess different suboptimal reproduction setups and listening conditions. The spatial accuracy was assessed with respect to this reference with respect to the panned image, image localization accuracy, and the sweet spot area spread. For 2 channel stereo reproduction, the study used loudspeakers of different directivity under anechoic or varying reverberant room conditions. The work also assesses the relative effects of upmixing stereo for 5 channel reproduction.

Details

Published in
AES Convention 142
AES Convention
142
Paper number
9761
Publication date
May 6, 2017
Session subject
Audio Analysis and Synthesis
Affiliation
University of Patras, Patras, Greece (See document for exact affiliation information.)
Type
Convention Paper