When a high priority input gates on, all lower priority inputs are forced to gate off to their respective Low Set values. Each VCA is set independently. The SMX-6 mixer is equipped with both input compressor and an output compressor features. The input compressor differs from a conventional compressor due to its feed forward structure. This feed-forward technology virtually eliminates breathing and pumping.
Threshold is the sensed input level at each input above which the compressor begins to actuate.
Attack Time is a global setting for all VCAs and may be set to fast or slow depending on your preference. The auto level feature of this unit is designed to handle long term input level variations to maintain a consistent output level. This is basically done by selecting a desired average output level then setting up the other parameters to define the response. Desired Average Output Level is the target output level you set. Once the auto level function is working the VCA raises or lowers gain as necessary to achieve this targeted output level given the sensed input level.