Annoyance evaluation of floor impact sounds with temporal and spatial variation in VR environments

Abstract

Children running sound as floor impact noise was evaluated in virtual reality environments, and investigated the influence of the head mounted display (HMD) and spatial sound effect using head-related transfer function (HRTF). In order to reproduce a real moving sound source, a HRTF was applied to a single impact ball sound. The annoyance level and allowable endurance limit were evaluated by changing LA,Fmax and temporal decay rate (DR) in four environmental set-ups: non-effect, only HRTF, only HMD, and HRTF and HMD. As a results, the recognition of the impact sound in the VR environment, and the sound directivity information energy significantly contributes to the annoyance response.