Effects of Plane Mapping on Sound Localization in a Virtual Auditory Environment
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Virtual auditory environments (VAEs) can be used to communicate spatial information, with sound sources representing the location of objects. A critical factor in this type of immersive system is the degree to which the participant can interact with the virtual environment. Our prior work has demonstrated that listeners can successfully locate virtual spatialized sounds, delivered over headphones, in a VAE using a mouse and screen to navigate the virtual world. The screen indicates the avatars position on the vertical plane. The present study seeks to determine the effects of plane mapping on listener performance. In the horizontal-plane interface, the listener used a WACOM tablet and pen to navigate the VAE on the horizontal plane. Results suggest that there is no significant performance difference when locating a single sound source. In the multi-source context, it was observed that the time taken to locate the first sound was significantly larger than the time taken to locate the remaining sounds.
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