Abstract: An interactive vehicle simulation system having a virtual reality engine that generates a virtual operating environment that includes a user operated vehicle having a plurality of wheel types, a vehicle position, vehicle orientation, vehicle velocity and vehicle acceleration.

Abstract: An interactive vehicle simulation system having a virtual reality engine that generates a virtual operating environment that includes a user operated vehicle having a plurality of wheel types, a vehicle position, vehicle orientation, vehicle velocity and vehicle acceleration.

Abstract: A portable multi-functional audio sound system has an enclosure and control panel with an optional display on a front portion of the enclosure. The control panel provides for selection among menu options which are presented on the display. An audio input is coupled for receiving a live audio signal. An electronic circuit receives user commands from the control panel and displays configuration information on the display. The electronic circuit has an amplifier for amplifying the live audio signal, and a synthesizer for generating programmable audio signal in response to a MIDI data stream. The MIDI data stream is routed to the digital signal processor or to the synthesizer. A digital signal processor controls the menu options on the display. A speaker is mounted within the enclosure and coupled for receiving a combined signal of the live audio signal and the programmable audio signal.