10.6

220Logic Pro Effects
Logic Pro Velocity Processor MIDI plug-in Compress/Expand
In Compress/Expand mode, the Velocity Processor MIDI plug-in behaves like an
audio compressor.
Compress/Expand mode parameters
• Threshold knob: Set a velocity value. Incoming velocities above the threshold
are processed. MIDI notes with velocity values below the threshold pass
through unaffected.
• Ratio knob: Determine the slope of compression/expansion above the threshold.
Processing is done using a “soft knee” characteristic.
• Ratios smaller than 1 result in an expansion of incoming velocity values.
• Ratios greater than 1 result in compression of incoming velocity values.
• Make-up knob: Set a velocity offset to compensate for the higher or lower overall
velocity caused by compression/expansion. The velocity offset can be positive or
negative, either adding to or subtracting from incoming velocity values.
• Auto (Gain) button: Automatically apply a maximum velocity reference level, set with
the Make-up knob.
Note: When the Auto button is active, the Make-up knob changes function: instead
of setting the velocity offset value, it sets the maximum velocity reference level.