Envelope is a project that I've been developing over the course of the semester that makes use of a virtual world to engage the user in sound creation. While facing a frontal projection, the user stands on a skateboard, navigating through a virtual landscape of sound by their leaning left and right. Upon collision with a sound node, a layer of sound is collected, producing in effect a unique composition. The aim is to allow access to the art of sound composition in a fun and different way.