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
Subject:
Ambisonics
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