Music Logic And Music Surround (Thx) - Lexicon DC-1 - REV 1 Owner's Manual

DC-1 Digital Controller
If there is a strong monaural speaking voice present at the same time, this
component of the input to the Cathedral effect is reduced while the stereo
component is increased.
If the input signal is pure monaural speech the input is almost entirely
attenuated. SPEECH DETECT is a real benefit to some popular music
(where spoken voice, such as rap, occurs along with the music), stereo
television and early stereo movies. Any stereo material which was not
carefully mixed for surround is a good candidate for playing through the
Cathedral effect with Speech Detect on.
CENTER LEVEL adjusts the output level from the center speaker.
SUB BASS BOOST boosts or cuts the subwoofer output level. Although the
normal subwoofer level is set during the calibration procedure, with some
recordings it may be desirable to increase or decrease this deep bass level.
EFFECT LEVEL adjusts the loudness of the side and rear speakers. When
there are no side speakers, it adjusts the amount of ambient signal mixed
into the main loudspeakers.
Music Logic and Music Surround are surround effects developed specifi-
cally for music listening. They make full use of additional loudspeakers
placed at the center, sides and rear of the room. Music Logic provides a
slight degree of steering for the front channels whereas Music Surround
(available in the THX version of the DC-1) passes unprocessed left and right
information directly to the front left and right speakers.
Parameter
CENTER LEVEL
FRONT STEERING
SIDE LEVEL
SIDE ROLLOFF
REAR ROLLOFF
SUB BASS BOOST
EFFECT LEVEL
CUSTOM
Parameter
CENTER LEVEL
SIDE LEVEL
SIDE ROLLOFF
REAR ROLLOFF
SUB BASS BOOST
EFFECT LEVEL
CUSTOM
Initial Value
13
1/4 1/4, 1/2, Full, Off
+3dB
9.7kHz 453Hz20.0kHz
6.9kHz 453Hz20.0kHz
+0dB
+00dB
Initial Value
15
+0dB
8.2kHz 453Hz20.0kHz
6.9kHz 453Hz20.0kHz
+0dB
+00dB
Range
0-30
-5 to +5dB
-5 to +5dB
-30 to +05dB
Range
0-30
-5 to +5dB
-5 to +5dB
-30 to +05dB
DC-1Effects
Music Logic and
Music Surround (THX)
Music Logic Parameters
Music Surround Parameters
39