We present an interactive audio game designed around the auditory
perception of distance and the use of physics-based models
for simulations of the dynamics, the sound source, and the acoustical
environment. The game consists in throwing a virtual sounding
object inside a virtual open-ended tube which is inclined. The
task is to keep the object inside the tube, in other words the user
should adjust the initial velocity applied to the object such that the
latter does not fall out at the far end of the tube. The position of
the object inside the tube is provided by continuous audio feedback.
User performance is closely related to its ability to perceive
the dynamic distance of the object in the virtual tube. Therefore,
this game represents a potential tool for exploring the usability of
auditory distance information in interaction design.
