Sound Menu Operation
Dolby Virtual 
A Virtual Dolby Surround System attempts to create the same surround effect produced by a
The general conceptual model of a Virtual Dolby Surround System divides the centre signal equally between the left and right speakers to achieve a Phantom Centre Image. It also processes the Virtual surround signal before sending it to the left and right speakers, creating a virtual image around the listener.
The virtual effect is stronger with Dolby Surround encoded movies.
Phantom Centre Speaker
Left Front
Speaker
Right Front Speaker
Virtual Surround
Switching the Dolby virtual to OFF gives you normal television sound.
Dolby, and the 
symbol are trademarks of Dolby Laboratories.
