Room-scale virtual reality (VR) affordance in movement and interactivity causes new challenges creating acoustic environments for VR experiences. Such are typically constructed from interactive objects that accompanied by an Ambisonic bed off-screen (“invisible”) music soundtrack, with the bed, music, acoustics describing aural features of area. This methodology can become problematic room-scal...

The Virtual Reality Lab at the Naval Research Laboratory has created a real-time, situational awareness virtual environment for battlefield visualization, termed the Dragon System [1]. The system is implemented on a workbench [2] and a CAVE-like immersive room [3]. It utilizes a virtual laser pointer metaphor for navigating and interacting with the terrain and objects; we implemented this metap...

Three alternatives to the traditional head mounted Virtual Reality display are described. One configuration is the Virtual Holographic Workstation; an external stereo CRT viewed by a user wearing head tracking stereo shutter glasses. Another is a Computer Augmented Reality camcorder, where virtual objects are composited onto live video using six axis tracking information about the location of t...

We have set up a brain-computer interface (BCI) to be used as an input device to a highly immersive virtual reality CAVE-like system. We have carried out two navigation experiments: three subjects were required to rotate in a virtual bar room by imagining left or right hand movement, and to walk along a single axis in a virtual street by imagining foot or hand movement. In this paper we focus o...