In addition to the dynamics processing, a separate limiter is available for all sources.

Limiter Parameters

The following parameters are available for the limiter:

  • Threshold - threshold in dBr, range is dependent on RSL.
  • Release - release time from 10ms to 5000ms.


The dynamics elements of Power Core use relative decibels, or dBr, as opposed to dBFS. So when you are using the dynamics elements (compressor, expander, gate, limiter, de-esser), the threshold values for those elements are in dBr, not dBFS. What this means in practice is explained in more detail later. For now, it is useful to know that the threshold range will vary depending on the Relative System Level (RSL) defined in the ON-AIR Designer. 

Operation

To access the parameters, press an Access key (on the fader strip) followed by Limiter (on the Central Function Keys and/or GUI).

Then adjust the parameters from either the surface or GUI.

On the surface...

There is one page of parameters.

  • Enable the Limiter soft key to turn on the processing.
  • Turn the rotary controls to adjust the behavior.

On the GUI...

All of the parameters are shown on a single page, and there is a visualization that shows the overall response (input versus output level).

The visualization includes a white ball that represents the output level of the limiter. This changes dynamically as the signal level varies. The ball can be extremely helpful when adjusting parameters, as you can see which part of the curve is active as the signal level changes.

'Source Parameter' dialog box (Limiter)

  • Enable the Limiter button to turn on the processing.
  • The limiter curve provides an easy way to check if the processing is turned on or off:
    • Curve (filled) = Limiter on.
    • Curve (not filled) = Limiter off.
  • Touch and drag and parameter values to adjust the behavior.
  • The meters show the levels at the input and output of the limiter section.