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Audio quality evaluation in virtual reality: Multiple stimulus ranking with behavior tracking

: Rummukainen, O.; Robotham, T.; Schlecht, S.J.; Plinge, A.; Herre, J.; Habets, E.A.P.

Audio Engineering Society -AES-:
AES International Conference on Audio for Virtual and Augmented Reality 2018 : Science, technology, design, and implementation : Redmond, Washington, USA, 20-22 August 2018
Red Hook, NY: Curran, 2018
ISBN: 978-1-5108-7039-0
International Conference on Audio for Virtual and Augmented Reality <2018, Redmond/Wash.>
Fraunhofer IIS ()

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.