User Guide

Dugan Model M User Guide
46
Controlling Ambience
Unlike the Speech System, the Music System does not maintain constant ambience.
To smooth out the ambience, two methods can be used separately or together:
• The last hold function keeps the last mic on that stays above -3 dB gain for
0.5 seconds. When another mic passes the same criteria, it becomes the last
hold mic.
To activate the last hold function for a group, click that group’s last hold button.
• Raise the auto mix depth control until you do not hear an objectionable shift
in ambience. Just a few dB of attenuation may suffice to reduce bleed or
feedback.
Gain Limiting
Gain Limiting and the Music System
NOTE: See Chapter 2:Theory of the Speech and Music Systems.
The Dugan’s unique implementation lets you set the number of mics allowed at full
gain before gain limiting occurs. This can prevent feedback as the Music System turns
on more mics.
NOTE: Gain Limiting is the only automatic mixing function that can be active when the channel
is in man mode.
To activate Gain Limiting:
1. Activate the NOM buttons on each channel you wish to include.
2. Set the master NOM gain limit field in the range 1–10 (see page 27 to learn
how to set controls).
3. Toggle the meter title to NOM gain limiting to view the amount of gain re-
duction.