Dan Dugan Sound Design D-3 - Manual (Page 32)

Dugan Model D-3 User Guide Operation
32
3.3.4 Pre-fader Speech System Insert
The Speech System works best if patched post-fader. If this is not possible, this section
discusses some of the operational issues you will encounter. One must use different
techniques to accomplish some familiar tasks, such as muting channels and pre-listening
to muted channels.
Muting Channels
Mics must be muted by using the Dugan’s
mute
buttons. Pulling a fader down on the
console will not properly mute a channel. Although that mic is no longer audible in the
mix, it still contributes to the gain computations and causes ambient noise fluctuation.
In the worst case, this could cut off a speaker.
Figure 3-7
To properly mute a channel:
• Leave the console faders up, adjust levels while people are talking, and mute a mic
by pressing the Dugan’s mute mode button. Enable the mic when needed by putting
it back into auto mode.
Muting mics does not alter the overall ambient sound mix: the Speech System compen-
sates by slightly raising the ambient gains of the other mics to compensate for the
gain subtracted by muting a mic. Note that this behavior is during ambience without
input to any mic; while one or more mics receive speech input, the gain shifts to the
active mics.
OR
• Use the
bypass
switch with the console fader pulled down. This keeps the mic instant-
ly available on the fader but that channel is no longer in the control mix.
Be aware that
bypass
may generate a click if it interrupts room rumble, whereas the
mute
button does a quick-fade. The
mute
button can be used with the fader up;
by-
pass
is best used with the fader down.
Control
System
Controller
Console
Mix Bus
Insert
Point A
Insert
Point B
Fader
Microphone
Input EQ
Gain Control
Insert
Point C