Native Instruments MASCHINE MK3 Groove Production Studio (Black) - Manual (Page 473)

Element Description
SCALE Section
Velocity Adjusts the velocity response of the drum. Available values range
from -100.0% to 100.0% (default value). At zero (mid course), the
drum is played at full velocity, no matter how hard you hit the keys
(or pads). From that mid position, by turning the knob to the right
you increase the positive velocity response and make the drum more
sensitive to the velocity at which you hit the keys/pads. From the
mid position, turning the knob to the left as the inverse effect: the
harder you hit the key/pad, the softer the resulting drum sound will
be.
Using the Drumsynths
The Cymbals
MASCHINE - Manual - 473