User Manual

2.35. Mixer: Dugan Automixer
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 on the DME7 can automatically adjust the automix gain for up to 64
mics used for speech.
In this explanation, we describe using the Dugan Automixer with three mics.
When one person is speaking When two people are speaking
Mic input audio (dB) Mic input audio (dB)
Automix gain (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.
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.
2. Audio Components
100 | ProVisionaire Design Component Guide