The simulation performed is using the source image model. Wall reflections are computed up to the fifth order, and an attenuation by a factor of two is assumed at each wall bounce. Performs a N by N mixing using filters measured off a real room. Their use is internal, you do not need to run them. There are two data directories, room and hrtf containing the room and head impulse responses respectively.
All files are raw data.
Here's a sample session, making various mixtures of two sounds.