User guide

Dugan-MY16 User Guide
10
When one person talks at a time:
•The system rapidly fades that mic’s gain up and the others down.
•When the speaker pauses, that mic fades down and the others up, so all mics sum
to equal one mic at full gain.
•When the next person talks, the system fades that mic’s gain up and the others
down.
The result sounds like handing one mic around among the speakers.
When several people talk at once, the gain is shared among active mics. All mics
sound normal when used but there is no noise buildup or feedback.
It is important to note that the Dugan Speech System does not perform limiting or
automatic level control. While people are talking, mix the individual mic levels on
the Yamaha mixer’s faders in the normal way. You can leave the faders up when peo-
ple are not talking because the Dugan takes care of cueing the mics.
Figure 1-1 shows four snapshots of the Speech System in action with three mics. The
first frame shows no one speaking; the sound levels at all mics are low. The system
fades all channels to a medium gain that sums to the equivalent of one mic at full
gain.
Figure 1-1 Dugan Speech System
The second frame shows one person speaking. The system automatically fades this
gain to full, while the other two inputs are turned down.
The third frame shows a different person speaking. The system automatically fades
this gain to full, while the other two inputs are turned down.
The fourth frame shows two people speaking simultaneously. The system automati-
cally shares the gain between them, while the other input is turned down.
Sound
No one speaking Mic 2 speaking Mic 3 speaking Mics 2 and 3 speaking
at mics (dB)
40
50
60
70
Resulting
automix
gains (dB)
-30
-20
-10
0