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Dolby Digital EX

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Official Dolby Digital EX Logo

Image provided by Dolby Labs

Definition: Dolby Digital EX is based on the technology already developed for Dolby Digital 5.1. This process adds a third surround channel that is placed directly behind the listener.

In other words, the listener has both a front center channel and, with Dolby Digital EX, a rear center channel. If you are losing count, the channels are labeled: Left Front, Center, Right Front, Surround Left, Surround Right, Subwoofer, with a Surround Back Center (6.1) or Surround Back Left and Surround Back Right (which would actually be a single channel - in terms of Dolby Digital EX decoding). A home theater receiver with a Dolby Digital EX decoder is required.

Also Known As: Dolby Digital 6.1

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