10.6

Table Of Contents
93Logic Pro Effects
Logic Pro Multipressor frequency band controls
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.