Multipressor frequency band controls in MainStage
Multipressor parameters are grouped into three main areas: the graphic display in the upper section, the set of controls for each frequency band in the lower section, and the output parameters on the right.
Frequency band parameters
Compression Threshold fields: Set the compression threshold for the selected band. Setting the parameter to 0 dB results in no compression of the band. This parameter can also be set with the upper arrow to the left of each level meter.
Compression Ratio fields: Set the compression ratio for the selected band. Setting the parameter to 1:1 results in no compression of the band.
Expansion Threshold fields: Set the expansion threshold for the selected band. Setting the parameter to its minimum value (−60 dB) means that only signals that fall below this level are expanded. This parameter can also be set with the lower arrow to the left of each level meter.
Expansion Ratio fields: Set the expansion ratio for the selected band.
Expansion Reduction fields: Set the amount of downward expansion for the selected band.
Peak/RMS fields: Set a smaller value for shorter peak detection, or a larger value for RMS detection, in milliseconds.
Attack fields: Set the time before compression starts for the selected band, after the signal exceeds the threshold.
Release fields: Set the time before compression stops on the selected band, after the signal falls below the threshold.
Band on/off buttons: Turn each band on or off. When enabled, the button is highlighted, and the corresponding band appears in the graphic display area above.
Bypass buttons: Bypass the selected frequency band.
Solo buttons: Turn on to hear compression on only the selected frequency band.
Level meters: The bar on the left shows the input level, and the bar on the right shows the output level.