Dan Dugan Sound Design D-3 - Manual (Page 33)

Dugan Model D-3 User Guide Operation
33
Pre-listening to Muted Channels
If your board allows listening to a mic before the insert point, you can mute on the Dugan.
If signal through the Dugan is required to pre-listen to a mic, pull the fader down and
put the channel in
bypass
mode. When the person with that mic is about to speak, switch
the channel out of
bypass
and raise the fader.
NOTE: A known bug in the Model D-3 system is that a short interruption in power can
confuse the Processor and display an error message in the Processor window.
If this happens, turn the power switch off, mix manually for ten seconds, and
then turn it on again. Normal operation will resume.
3.4 Dugan Music System
The Dugan Music System is a soft-gating or ducking system with an automatic threshold
that follows the ambient noise level. Each channel has a 2:1 expansion ratio below the
floating threshold, which is controlled by line level audio signal sent to one of the
music
system threshold inputs
(
MT IN
). This signal is needed only for the Music System
because the Speech System has no threshold. This signal can be derived from a sensing
mic in the stage area.
Install the sensing mic as near the program mics as possible, but not close to a voice or
instrument. We recommend using the same type for the sensing mic as the program
mics. The goal is to represent the ambient sound detected by the mics on stage.
• Do not point the sensing mic at a pit orchestra, but rather in the same direction as
the stage mics.
• Do not put the sensing mic in the back of the house because of the time delay.
Patch the preamplified sensing mic to the
MT IN A
of the Processor. Typically, the direct
output of a console input strip is used, with the mix buses deselected. This input normally
should be set to 10–15 dB more gain than the program mic inputs.
Another use for the Music System is to duck an audience mix when the people on stage
talk. In this application, an aux send of the vocal mix is the threshold signal.