The present invention discloses a system and method for rendering an audio signal over a wireless communication device where the video signal associated with the audio signal is being output to one or more displays in an audio-video system. The main body of the ring, outward of the inner circular edge, is transversely arced along the full annular length thereof, providing a convex upper surface and a concave lower surface with the lower surface forming a continuous recess about the body. Content is delivered over a packet-switching network according to a peer to peer file distribution protocol and is stored in a storage area of the subscriber set-top box, such that each subscriber set-top box is configured to transmit and receive content to and from the main content source and other set-top boxes connected to the network. In cases where the number of possible models is prohibitively high, the process begins by constructing and solving more general models and then constructs and solves those more detailed models that are similar to those general models that achieved the highest ordering.