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Multi-Channel Music & Cinema Systems
Theory and Design
5.1 Logic 7 and DTS Logic 7 effects combine the re-equalization, subwoofer
crossover, and adaptive de-correlation enhancements of 5.1 THX with
Lexicon’s Logic 7 matrix technology. 5.1 Logic 7 and DTS Logic 7 differen-
tiate between the side and rear speakers with a combination of delay and
directional steering. For soundtracks with music or effects such as wind
noise or applause, this creates a more spacious and enveloping soundfield
and has a large effective listening area. For sound effects that pan to the side
and rear of the listener, the result moves more convincingly through the
sides and into the rear speakers. These seven channel effects produce the
most exciting, and at the same time the most natural reproduction of 5.1
channel encoded material.
The 5.1 Two Channel and DTS Two Channel programs provide a means for
mixing the 5.1 channels of a discrete digital soundtrack into two stereo
channels while preserving all the original directional effects when the mix
is decoded through Logic 7 or TV Matrix. These effects include a parameter
for surround level, for adjusting the level of surround information folded
into the two channel mix. There is also a parameter for reducing the level of
the LFE channel.
Lexicon 5.1 Enhancements
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