Patent ID: 7298853

Claim:
A method for generating at least one remote virtual speaker location in connection with at least a partial reflective environment and in combination with an audio speaker for creating a plurality of sound effects including a virtual sound source from the reflective environment which is perceived by a listener as an original sound source, said method comprising the steps of: a) generating a primary, direct audio output by emitting audio compression waves from audio speakers, thereby providing direct audio output to a listener; b) generating secondary, indirect audio output from at least one virtual speaker remote from the audio speakers by emitting ultrasonic sound from at least one parametric speaker associated with the audio speakers and oriented toward at least one reflective environment which is remote from the audio speakers, thereby indirectly generating generally omni-directional sound from the reflective environment which is perceived as a virtual speaker; c) synchronizing the primary audio output of the audio speakers with the secondary audio output from the at least one virtual speaker such that the listener hears a plurality of sound effects from multiple directions; d) providing reinforced propagated sound from a virtual speaker at a separate location from a sound source which originates the propagated sound; e) emitting parametric ultrasonic output including modulated ultrasonic and audio frequencies from a parametric emitter along a primary direction of propagation; f) orienting the primary direction of propagation toward a reflective environment having surface properties which enable substantial reflection of the ultrasonic output along a secondary direction comprising an indirect path to the listener; and g) providing reinforced propagation of audio sound from the reflective environment comprising (i) a reflected audio component and (ii) a reflected ultrasonic component including the parametric ultrasonic output which decouples along the secondary direction within air to reinforce the reflected audio component, thereby developing a virtual speaker along the secondary direction with respect to the listener.