An analog approach to surround sound in which third and sometimes fourth channels of sound are folded into the two front stereo channels and later partially decoded in a reverse operation. Examples are SQ, QS, and Dolby Surround. Only a small portion of the original additional-channel information can be recovered, as opposed to Dolby Digital and DTS, where each of the six discrete channels can be totally recovered without mixing with the others.
Sweetwater Sound Inc.
5501 U.S. Hwy 30 W
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