The Sphere Spatializer integrates several MEMs sensor technologies, including 3-axis accelerometers, gyroscopes, and magnetometers with a Bluetooth CUI. This allows it to detect absolute orientation and use this information to move sounds in space through the array of loudspeakers in the Allosphere (currently 16, plans for hundreds are in progress for increased spatial resolution). The interface includes 12 push buttons equally spaced around the surface of the controller that allow the user to select a sound source closest to the spatial location, or quickly move a sound to a new position. The shape of the Spatializer is based on the hyperdodecahedron, a 4-dimensional geometrical polytope, and the final object represents its shadow projected into 3 dimensions. It was developed using procedural modeling techniques - the mathematical model was algorithmically sculpted to provide a more organic design and ergonomic feel while preserving the 600 internal vertices of the mathematical structure. It was constructed with a Z-Corp 3-D printer capable of building solid objects. Here are some views of the shape from various perspectives.

Below is a video of an initial test of the Sphere Spatializer in April 2006 (not yet in the Allosphere).
Click on the image below to see the video (12MB mpeg4), recent version of quicktime required.

There is more information about the demo in this PDF, a simulation of interactive
brain navigation using computational agents, MRI data and 3D (stereo) projectors.