所以小葉,直接講結論,有沒也有用,好不好? Finally found official documentation describing room perfect and time alignment. Also according to the documentation, Room Perfect uses a three-dimionsional measuring techniques that measures up to 2 million reflections! Time Alignment Regarding the listening position, it is essential that all direct sound arrives simultaneously. A huge explosion can sound weak, if the speakers are not time-aligned correctly. The problem is compounded when setting up a home theater system, with multiple speakers and subwoofers reflecting randomly in the room. Different distances to the loudspeakers undermine the integration of all the speakers into a unified sound image, i.e. the ability to “track” a sound as it moves through the room in one or more dimensions. During RoomPerfectTM measurement, all delay settings are calibrated and adjusted according to the physical speaker placement and the acoustical center for the boundary subwoofers. All speakers are individually measured and aligned to one common standard, ensuring that all speakers come together in one sound image.