Patent ID: 8243970

Claim:
A method of generating virtual reality audio for a participant of a virtual reality simulation, the method comprising: computing an independent audio profile representing participant-independent propagation of sound from a virtual source to each of one or more virtual objects in the virtual reality simulation; determining a location and an orientation of a head of the participant, comprising: receiving a CDMA signal transmitted from each of three antennas disposed on a headset worn by the participant, wherein each transmitted signal is assigned a different CDMA code, measuring a code delay and an RF phase based on the received signals, and determining the location and orientation of the head based on the measured code delay and RF phase; computing a dependent audio profile representing participant-dependent propagation of the sound from the one or more virtual objects to the head of the participant based on the determined location and orientation of the head; combining said dependent audio profile with said independent audio profile to determine a total audio profile for said virtual source; and filtering said virtual source based on said total audio profile to generate said virtual reality audio associated with said virtual source at the head of the participant.