Implementation of a general-purpose auralizer on a floating-point signal processor

The design and implementation of a real-time general-purpose auralization device is presented in this paper. The goal has been to make a stand-alone device that can also be controlled from a PC. Several auralization and spatialization methods are included, such as binaural headphone and loudspeaker auralization, and vector base amplitude panning for multi-channel loudspeaker sound reproduction. Combining these to a single device allows easy comparison and choosing the best method for any purpose. The different auralization principles and their implementations using the SHARC digital signal processor are described.