About Automixer

Automixer detects effective audio from multiple microphones and automatically optimizes the gain distribution for multiple live microphones in unscripted speech situations. In this way, the sound engineer can maintain consistent system gain over multiple microphones without having to focus on the operation of multiple faders.

Principles of Automixer operation

Automixer employs the Speech System, which automatically adjusts the automix gain of up to 8 live speech microphones.

For one person speaking with multiple microphones

For two people speaking with multiple microphones

If one person speaks, that microphone’s gain level will fade up instantly, while the gain for the other microphone will be reduced. If a different person speaks, the same behavior occurs.

If two people speak, the gain of two microphones will be automatically distributed so that the total gain will stay constant. The gain of the third microphone will be reduced.

The behavior of the Speech System is different than that of a limiter or auto-level controller function.

This system allows an engineer to adjust the level balance as usual, even for multiple speakers. Also, while no one is speaking, the system detects the microphone input levels and automatically distributes the gain. This means that the faders can be left in a raised position.

Automixer distributes automix gain more preferentially to channels with higher input levels. Automixer provides the following benefits:

  • It prevents unnecessary fluctuations of levels and uneven ambient noise that is input from microphones on the channels set to Channel Off or with a lowered fader setting
  • It adjusts the gain and fader settings according to the speaker’s voice level on each microphone, and inputs even signal levels, resulting in more accurate automix gain distribution.
  • It achieves preferential distribution of automix gain for the speaker you want to emphasize by raising the fader for that speaker or lowering others.