Dan Dugan Sound Design D-3 - Manual (Page 27)

Dugan Model D-3 User Guide Operation
27
In addition to these main functions the D-3 provides the following useful amenities:
• Pressing the
manual
,
auto
, and
mute
buttons causes a smooth audio transition for
each channel between modes.
• The momentary master
override
button fades up the channels whose
override
func-
tion is active and fades down the other channels. The automatic mix resumes when
the button is released.
• The master
preset
button sets each channel to the mode indicated by its
preset
mode LED. Powering up the system also performs this function.
• The
last hold
function is only functional for the Music System. It can be used to
maintain constant ambience by keeping the last mic used at full gain until another
mic is used.
• The D-3 can be divided into three
groups
, each an independent automatic mixing
system.
3.3 Dugan Speech System
The Dugan Speech System distributes the gain of one open microphone over the entire
system, maintaining a natural one-mic ambience. It is essential to distinguish this behavior
from the annoying fluctuation of levels and uneven ambience in a conventional gating
system.
When one person speaks into the Dugan Speech System, it rapidly fades that mic’s gain
up and the others down. When the speaker pauses, all mics fade down so they sum to
equal one mic at full gain. The result sounds like handing one mic around among the
speakers. When several people talk at once, the gain is shared. This makes all mics sound
normal when used but prevents buildup of noise or feedback.