User Manual

“DUGAN AUTOMIXER” screen Chapter 4. System screen
MTX-MRX Editor User Guide
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“DUGAN AUTOMIXER” screen
In a system used for unscripted speech, the automixer detects the mics that are in use and
automatically optimizes the gain distribution, maintaining a consistent system gain
between multiple mics without requiring an engineer to be constantly adjusting the faders.
The Dugan Automixer provided by the MTX automatically adjusts the automix gain of
input channels 1–4 on the MTX3 or input channels 1–8 on the MTX5-D.
In this explanation, we describe using the Dugan Automixer with three mics.
The Dugan Automixer differs from the functionality of a limiter or an auto level controller.
When multiple people are speaking, the engineer can use the faders to adjust individual
levels as usual. Even when nobody is speaking, the mic audio level is detected and the gain
is distributed automatically, so the faders can be left raised.
The automixing algorithm is only complete when all the channels in an automixing group
are summed.
Master field
1 [reset] button
Resets the various parameters to their default values.
When one person is speaking When two people are speaking
Mic input audio (dB)
Automix gain (dB)
Mic input audio (dB)
Automix gain (dB)
When one person speaks, the gain of that mic
instantly rises, and the gain of the other mics
decreases. The same thing happens when a
different person speaks.
When two people speak simultaneously, the
gain is automatically distributed between the
two mics so that the total gain remains constant,
and the gain of the remaining mic decreases.
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