People were asked to sit in rows in the middle of the room as if in bus seating. The audio track played over the 8 channel system so as to mimic movement around listeners fixed in the room. This was a pretty literal interpretation of the bus, but I was drawn to all of the bizarre sounds buses make: squealing, popping, hissing, beeping, etc. rather than just driving sounds.
I do wish it had been longer; this was mostly an experiment with editing files in audacity which I utilized in my final project.
site sound tracks 1-4.wav