MC-8 Mode Adjust
5-41
decoding is not engaged for all 5.1-channel Dolby Digital sources.
Available in THX ULTRA2, THX SurEX and THX modes.
When AUTO is selected, THX Surround EX decoding is engaged
when a flagged 5.1-channel Dolby Digital source with THX
Surround EX encoding is detected. THX Surround EX decoding is
not engaged when a non-flagged 5.1-channel Dolby Digital source
with or without THX Surround EX encoding is detected.
Note:
The MC-8 cannot automatically detect THX Surround EX encoding in non-
flagged 5.1-channel Dolby Digital sources. A non-flagged input source
does not include information in the input signal that identifies THX
Surround EX encoding.
THX Surround EX listening modes are available when Dolby Digital
Surround EX decoding is engaged. THX or THX ULTRA2 listening
modes are available when THX Surround EX decoding is not
engaged. Refer to the 5.1 THX ULTRA2, 5.1 THX SurEX and 5.1 THX
listening mode descriptions that begin on page 5-18, or the DTS
THX ULTRA2 and DTS-ES THX listening mode descriptions that
begin on page 5-27 for more information.
Note the following:
• Toggling the SURROUND EX parameter setting produces low
level clicks in the front speakers.
• THX Surround EX decoding cannot be engaged unless both
side and rear speakers are present.
• When the Shift command bank is activated, pressing the
remote control THX button while a 5.1-channel Dolby Digital
source is present activates the 5.1 THX ULTRA2, 5.1 THX SurEX
or 5.1 THX listening mode. Subsequent presses adjust the
SURROUND EX parameter, cycling through the AUTO, ON and
OFF settings.
• When the Shift command bank is activated, pressing the
remote control THX button while a 5.1-channel analog source
is present toggles the SURROUND EX parameter between the
ON and OFF settings.
SURROUND MIX -5 to +5dB
Controls the relative level of surround channel information sent to the
audio output connectors labeled Front L/R. It is recommended that
you set this parameter to +2dB or +3dB for all input sources. Available
in 5.1 2-CHANNEL and DTS (ES) 2-CHAN modes.
TREB CUT RT 500Hz to 20kHz
Sets the frequency above which high frequencies are rolled off in
the reverberated signal, causing reverberated signals to grow
progressively darker. This results in a more natural sound because it
simulates the effect of air absorption in a real hall. Setting this
parameter to a low frequency dampens the audio as it re-circulates,
and consequently can actually shorten the reverb time. Available in
all LIVE! modes.
VOCAL ENHANCE +6.0dB, +3.0dB, +0.0dB
Controls the level of dialog-boost in the audio output connector
labeled Center. Increase this setting to improve dialog intelligibility,
particularly at lower volume levels. Available in all LOGIC 7 modes.
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