THX Roomcaster has the ability to time the delivery of audio to any speaker to provide accurate synchronization among the speakers, all the while maintaining lip-sync with the video in the system. Most other wireless audio-video systems have serious “lip-sync” issues, because the audio signal reaches the speakers after the action is displayed on the screen. To prevent this problem, THX Roomcaster uses time-management techniques that factor in a human’s tolerance for up to 20ms of latency between video and audio before lip-sync discrepancies become noticeable. THX Roomcaster has the ability to time the delivery of audio to any speaker to provide accurate synchronization among the speakers, all the while maintaining lip-sync with the video in the system. The result: surround sound that matches the action on the screen.