Virtual reality systems with multimodal stimulation and up to six degrees-of-freedom movement pose novel challenges to audio quality evaluation. This paper adapts classic multiple stimulus test methodology to virtual reality and adds behavioral tracking functionality. The method is based on ranking by elimination while exploring an audiovisual virtual reality. The proposed evaluation method allows immersion in multimodal virtual scenes while enabling comparative evaluation of multiple binaural renderers. A pilot study is conducted to evaluate feasibility of the proposed method and to identify challenges in virtual reality audio quality evaluation. Finally, the results are compared to a non-immersive off-line evaluation method.

Authors: Rummukainen, Olli; Robotham, Thomas; Schlecht, Sebastian J.; Plinge, Axel; Herre, Jürgen; Habels, Emmanuël A. P.
Affiliation: International Audio Laboratories Erlangen, Erlangen, Germany
AES Conference: 2018 AES International Conference on Audio for Virtual and Augmented Reality (August 2018)
Paper Number: P2-4
Publication Date: August 11, 2018

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