The comparative evaluation of the quality of different Ambisonic decoding strategies presents a number of challenges, most notably the lack of a suitable reference signal other than the original, real-world audio scene. In this paper a new test methodology for the evaluation of Ambisonic decoders is presented, using a virtual loudspeaker, binaural rendering approach. A sample study using a MUSHRA test paradigm and three different types of Ambisonic decoders was conducted and the results analyzed using a variety of different statistical approaches. The results indicate significant differences between decoders for some attributes and virtual loudspeaker layouts.

Authors: Bates, Enda; David, William; Dempsey, Daniel
Affiliation: ADAPT Centre, School of Engineering, Trinity College Dublin, Ireland
AES Convention: 150 (May 2021) Paper Number: 10457
Publication Date: May 24, 2021 Import into BibTeX
Subject: Ambisonics
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=21050

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