Lexicon Lexicon Part #070-13234 Thx, To on for proper decoding of Surround EX soundtracks

AC-3 Effects and Parameters				Lexicon
	THX 5.1	This effect provides THX 5.1 Cinema enhancements for film soundtracks
		recorded in the Dolby Digital format. This processing compensates for the
		acoustical differences between large mixing theaters and the typically
		smaller home environment. In this effect the side and rear speakers are
		driven in parallel when you designate side speakers as STANDARD
		(LARGE or SMALL) in the Speaker Configuration menu.
		In software Version 4, when SIDE and REAR speakers are selected in the
		SPEAKER CONFIGURATION menu, SURROUND EX is automatically set
		to ON for proper decoding of SURROUND EX soundtracks.
		Parameter	Initial Value	Range
		AC-3 STATUS (display only — not user adjustable)
		SURROUND EX (V4 only)	ON	ON, OFF
		COMPRESSION	OFF	AUTO, ON, OFF
		RE-EQUALIZER	ON	ON, OFF
		LFE MIX LEVEL	+0.0dB	-10.0dB to 0.0dB
		SUBWOOFER LVL	+00dB	OFF, -30dB to +05dB
		CUSTOM

AC-3 Effect Parameters

AC-3 STATUS displays the current status of incoming AC-3 data. The displayed items are not user adjustable.

BASS ENHANCE derives stereo bass to provide low frequencies that are noticeably less localizable and more spacious in the playback room.

Note that results will vary depending on room acoustics and the low frequency capacity of the surround speakers. As side and/or rear speakers are used for bass enhancement, the effectiveness is improved with speakers capable of reproducing reproducing low frequencies (LARGE). Using speakers that are not capable of producing low frequencies (<80Hz) may cause damage to them.

CENTER DLY SAMPLES adjusts the time offset of the center channel. The appropriate value is +0 unless you know that the center channel is not properly timed, as well as the amount by which it is off.

CENTER MIX adjusts the level of the center channel applied to the two- channel downmix. The appropriate value for film is 16. The appropriate value for music is 11.

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