METHOD AND DEVICE FOR DEVELOPING A VIRTUAL SPEAKER DISTANT FROM THE SOUND SOURCE

摘要

A method for providing multiple speaker locations around a listener (53) in a room with a sound source at a single location. The method comprising the steps of a) generating primary audio output by emitting audio compression waves from audio speakers (20, 21, 22) at the sound source which are oriented along a primary audio path directly toward the listener; b) generating secondary audio output from at least one virtual speaker (24, 25, 26) remote from and electronically unconnected with the sound source by emitting ultrasonic sound from at least one parametric speaker (20, 21, 22) positioned at the sound source and oriented toward at least one reflective surface (12, 13, 14, 15) within the room which is remote from the sound source and not along the primary audio path, thereby indirectly generating omni-directional sound from the reflective surface which is perceived as originating at the virtual speaker; and c) synchronizing the primary audio output of the audio speakers with the secondary audio output from the at least one parametric speaker such that the listener hears a unified sound experience from multiple directions.