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Sound localization in web-based 3D environments.

Chinmay Rajguru1, Giada Brianza2, Gianluca Memoli2

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Summary
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Investigating sound localization in virtual reality (VR) through WebVR is crucial for immersive experiences. This study shows WebVR is a viable method for exploring how users perceive sound location in virtual environments.

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Area of Science:

  • Human-computer interaction
  • Virtual Reality (VR) and Augmented Reality (AR)
  • Auditory perception and spatial audio

Background:

  • Sound localization is vital for immersivity in VR/AR, with audio serving as the primary spatial cue in WebVR.
  • Existing sound localization studies lack applicability to WebVR design, necessitating research within these environments.
  • Understanding user sound localization is essential for designers to correctly position audio sources in WebVR.

Purpose of the Study:

  • To investigate sound localization directly within WebVR environments.
  • To provide insights for WebVR designers regarding audio spatial cues and user perception.
  • To explore the impact of different sound cues and virtual environments on sound localization.

Main Methods:

  • Designed a training environment (empty room) and a testing environment (city-like virtual world) within WebVR.
  • Conducted sound localization experiments using traditional pink noise and a novel sound cue.
  • Analyzed perception differences in vertical and horizontal directions, and the effect of training and environment changes.

Main Results:

  • Demonstrated the potential of using WebVR for sound localization research.
  • Identified key design parameters influencing sound localization in WebVR.
  • Evaluated the impact of different sound cues and virtual environments on localization accuracy.

Conclusions:

  • WebVR is a feasible platform for conducting sound localization research.
  • Findings offer practical guidance for designing more immersive audio experiences in WebVR.
  • This research supports the development of human-computer interaction applications accessible via web browsers.