Set the velocity range
By default, the velocity of a channel strip extends from 1 to 127. You can limit the velocity range so that the channel strip only responds when the notes you play on your controller fall between the Min and Max values.
Set the velocity range for a channel strip
In the Channel Strips area, select the channel strip.
In the Channel Strip Inspector, click the Layer Editor tab.
In the Layer Editor, set the minimum velocity that triggers the channel strip using the Velocity Min value slider. (Click the value and drag vertically to change the value, or double-click the value and enter a new value.)
Set the maximum velocity that triggers the channel strip using the Velocity Max value slider.