nxPascal 3D sound test
This demo uses 5 floating sound sources. All settings for each sound are fully customizable. I also tried to demonstrate doppler effect with the fast object runby.
nxPascal is a open-source 3D-game engine that aims to cover all needs for game development.
http://code.google.com/p/nxpascal/
Sounds use BASS library http://www.un4seen.com/