Dugan Models E-1 and E-1A User Guide
14
Operation
1.
Raise your console preamp gains until the Model E-1A’s green
level
LEDs stay illu-
minated when the room is quiet.
The
level
LED illuminates green when the input level is within the acceptable
range for automatic mixing and flashes red to indicate clipping. There should be
enough gain ahead of the Model E-1A to maintain the green LED at all times.
Figure 2-4
Setting console preamp gain
2.
If there is insufficient gain to keep the
level
LEDs lit green when no one is talking,
set the rear panel
LEVEL
switch to
-10
.
The
auto mix gain
meters show the channel gains resulting from the process.
They
are not level meters!
3.
Adjust your console’s preamp gains so all LED meters float at about the same gain
when no one is talking.
Each talker now has equal access to the system gain. Note that this is not the same
as adjusting for each talker’s level.
4.
Adjust the console faders to balance the talkers.
Don’t worry about the relative positions of the faders because the automixing al-
gorithm takes care of cueing the mics in and out.
5.
If your Model E-1A is inserted to the console post-fader, you are good to go.
6.
If the Model E-1A is inserted pre-fader, you must use the Model E-1A’s
mute
but-
tons to mute mics.
With pre-fader insert patching, pulling a fader down to mute a mic leaves that
mic’s signal in the automxing process. This can cause the room ambience in the
mix to fluctuate, or in the worst case, cut off a talker.
Summary of Contents for E-1
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