While 3D TVs were everywhere at the Consumer Electronics Show, the audio software company DTS was demonstrating 3D audio. Its product, called Neo:X, adds the dimension of height to movie sound and further expands the depth and width of the sound compared to typical surround sound systems. Now when a plane flies overhead in a movie, for instance, you won’t just hear it go from back to front, the sound will also seem to climb upward as the plane ascends.
As impressive as it is, there a cost involved. To get the full effect, you can’t use your old 5.1 speaker system, or even your 7.1 speaker system. You will need an 11.1 system, which means 11 (11!) speakers and a subwoofer. Plus, you’ll need a piece of audio gear, like a receiver or processor, to make the effect work. The speakers are arrayed with five in front — three at ear level or lower, and two at ceiling level — two slightly to the side of the front speakers, far left and far right and two behind the listener. The ceiling mounted speakers are crucial to the height effect.
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