http://en.wikipedia.org/wiki/Holophonics
http://lfll.blog73.fc2.com/blog-entry-140.html
http://sound.media.mit.edu/resources/KEMAR/README
http://games.cs.uni-magdeburg.de/audio/3d_sound.htm
http://www.memorize-being.net/releases/oal11spec-ja/spec-4.html
http://connect.creativelabs.com/openal/Downloads/Forms/AllItems.aspx