Lexicon DC-1 5.1 Logic 7 (Dolby Digital version)

Lexicon

DC-1 Effects

5.1 Logic 7

(Dolby Digital version) 5.1 Logic 7 combines all the features of Dolby Digital AC-3 with enhance-

ments 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-equalizaer

features of THX 5.1.

5.1 Logic 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 Off, On, AUTO

DIALOG ENHANCE +0.0dB +0.0dB, +3.0dB, +6.0dB

RE-EQUALIZER Off On, Off

REAR DELAY OFFSET 0ms 0-20ms

SURROUND LEVEL +3dB -5 to +5dB

LFE MIX LEVEL +0.0dB -10.0db to0.0dB

SUBWOOFER LVL +0dB -5 to +5dB

EFFECT LEVEL 0dB -30dB to +05dB

CUSTOM

5.1 Logic 7 Parameters

AC-3 STATUS displays the current status of incoming AC-3 data. The

displayed items are not user adjustable.

COMPRESSION enhances the intelligibility of Dolby Digital material at

low volume levels (-6dB or lower). When set to AUTO, this control auto-

matically limits peak signals and boosts low level signals. The amount of

compression increases proportionately as volume is decreased. This is quite

useful when listening to Dolby Digital soundtracks at low output levels.

When set to ON, full compression is applied, regardless of volume.

DIALOG ENHANCE boosts dialog in the center channel. By targeting

specific frequencies, it can boost only dialog, without raising the entire

center channel level (which would alter the output balance achieved during

calibration).

RE-EQUALIZER equalizes the left, center, and right channel outputs to

match the overall frequency balance of the original recording. Without this

re-equalization, many films and some television programs will sound too

bright.

REAR DELAY OFFSET is an additional delay added to the rear channels.

This delay increases the apparent size of the listening space by increasing

the rear delay time. Feel free to experiment to find the setting that works

best.