In the summer of 2008, we developed a prototype of a multi-player mobile audio game, called SoundPark. The objective of the game was to collect audio clips that were physically scattered throught the real world, and deposit them in a staging area for playback. Central to the design are the themes of highly coupled interaction and communication between players with different roles and an engaging blend of interaction with both the physical and virtual worlds. To this end, numerous technologies including locative sensing, miniature computing, and portable displays had to be integrated with a game middleware and audio scene rendering engine.

I’ve written a much more detailed description on audioscape.org if you are interested, but here is a little documentation video that we put together to illustrate the concepts: