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Quality Comparison of Dynamic Auditory Virtual Reality (VR) Simulation Approaches of Approaching Vehicles Regarding Perceptual Behavior and Psychoacoustic Values

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Submitted:

19 December 2024

Posted:

23 December 2024

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Abstract

Traffic safety experiments are often conducted in virtual environments in order to avoid dangerous situations and conduct them more cost-efficiently. This means that attention must be paid to the fidelity of the traffic scenario reproduction, because the pedestrians’ judgments have to be close to reality. To understand the behavior in prevailing audio rendering systems better, a listening test was conducted, which focused on perceptual differences between simulation and playback methods. Six vehicle driving-by-scenes were presented using two different simulation methods, three different playback methods, and in additional binaural recordings from the test track acquired during the recordings of the vehicle sound sources for the simulation. Each vehicle driving-by-scene was characterized by different vehicle types and different speeds. Participants rated six attributes of the perceptual dimensions “timbral balance”, “naturalness”, “room-related”, “source localization", “loudness” and “speed perception”. While the ratings showed a high degree of similarity of the ratings of the sound attributes in the different reproduction systems, there were minor differences in the speed and loudness estimations and the different brightness perceptions stood out. A comparison of the loudness ratings in the scenes featuring electric and combustion engine vehicles highlights the issue of reduced detection abilities with regard to the former.

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Subject: Engineering  -   Other
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
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