A Cubical Approach To The Ray-tracing Algorithm
Author(s)
Soren Krarup Olesen
Abstract
A cubical approach to the ray-tracing algorithm of room simulation will be presented. The
algorithm has been optimised to meet the strict demand for real-time processing with aspect to
virtual reality audio.
The basic idea is to improve calculation speed at the expense of accuracy. Assuming that
the auditory system is only vaguely affected by the arrival time of a certain wall reflection the
entire model can be discretised into a finite number of cubes, that is, describing the sound
source, sound receiver and every point and material in the room as a cube with certain
characteristics.
Currently the algorithm is implemented on a PC, however, it is expected to be finally
implemented on a fixed point digital signal processor. The PC program shows a speed
improvement of at least twenty times compared to the ca
Keywords
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