Lexicon MC-1 owner manual AC-3 Effects and Parameters Logic, Dolby Digital

MC-1 Digital Controller

AC-3 Effects and Parameters

5.1 Logic 7

5.1Logic 7 combines all the features of Dolby Digital AC-3 with enhancements by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology to enhance the steering between the side speakers and the rear speakers, so sounds intended to come from behind the listener actually do come from behind. This effect also includes the adaptive decorrelation and re-equalizer features of THX 5.1.

5.1Logic 7 provides the ultimate in film reproduction. It brings out all the increased excitement and spaciousness a 7 channel speaker system can produce.

Parameter	Initial Value	Range
AC-3 STATUS (display only — not user adjustable)
COMPRESSION	OFF	AUTO, ON, OFF
VOCAL ENHANCE	+0.0dB	+0.0dB, +3.0dB, +6.0dB
RE-EQUALIZER	ON	ON, OFF
BASS ENHANCE	OFF	ON, OFF
REAR DELAY OFFSET	5ms	0-20ms
SIDE LEVEL	+00dB	OFF, -30dB to +05dB
REAR LEVEL	+00dB	OFF, -30dB to +05dB
LFE MIX LEVEL	+0.0dB	-10.0dB to +0.0dB
SUBWOOFER LVL	+00dB	OFF, -30dB to +05dB
CUSTOM

Dolby Digital

The Dolby Digital effect decodes Dolby AC-3 encoded soundtracks. Unlike analog Dolby surround decoding, Dolby Digital uses five discrete full-range channels and a sixth dedicated, Low Frequency Effect (LFE) channel. In this effect, any rear speakers present are connected in parallel with the side speakers. This is the standard Dolby Digital decoder. It does not include the enhancements by Lexicon or Lucasfilm which are available with other AC-3 effects in the MC-1.

Parameter	Initial Value	Range
AC-3 STATUS (display only — not user adjustable)
COMPRESSION	OFF	AUTO, ON, OFF
VOCAL ENHANCE	+0.0dB	+0.0dB, +3.0dB, +6.0dB
BASS ENHANCE	OFF	ON, OFF
SIDE LEVEL	+00dB	OFF, -30dB to +05dB
REAR LEVEL	+00dB	OFF, -30dB to +05dB
LFE MIX LEVEL	+0.0dB	-10.0dB to +0.0dB
SUBWOOFER LVL	+00dB	OFF, -30dB to +05dB
CUSTOM

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