Patent ID: 8837743

Claim:
A surround sound system comprising: a circuit for receiving a multi-channel spatial signal comprising at least one surround channel; a directional ultrasound transducer for emitting ultrasound towards a surface to reach a listening position via a first longer path, including a reflection from the surface; a first drive circuit for generating a first drive signal for the directional ultrasound transducer from a surround signal of the surround channel; an audio range loudspeaker for emitting sound to reach the listening position via a second shorter path; a second drive circuit for generating a second drive signal for the audio range loudspeaker from the surround signal; and a delay circuit for introducing a delay of a second signal component of the second drive signal originating from the surround signal relative to a first signal component of the first drive signal originating from the surround signal, said delay having a value that effects arrival at the listening position of surround sound from the first signal component before arrival of correlating surround sound from the second signal component and establishes a perceived direction of said arriving sounds as being from a position where the surround sound from the first signal component was reflected toward the listening position.