EarGames games make broad use of "3D Sound" where appropriate, using a technology known as HRTF or Head Related Transfer Function.
HRTF works by applying sophisticated digital signal processing to a sound and then delivering that sound over headphones. The sound then has the apparent effect of coming from somewhere in 3D space around the listener, well outside the head of the listener.
The particular implementation of HRTF used by EarGames comes from QSound Labs, creators of Virtual Haircut, the most widely viewed 3D sound on the internet.
Stay tuned for more about 3D sound and 3D hearing as we approach launch of our first game, EarMonsters for iPhone, iPad and iPod Touch.