Most MIDI keyboards, virtual or real, have some way to tweak the velocity range or sensitivity of their keys, usually by specifying a base/minimum velocity value on setup configuration.
On the other hand, while in Qtractor's MIDI clip editor (aka piano-roll, aka matrix) the velocity value may be only set in the lower view pane, where you can change event bar heights, up or down. Have notice that the last changed velocity value gets remembered as default for the next note you enter in the upper view pane (the piano-roll pane).
So it all boils down to velocity sensitivity.
Most MIDI keyboards, virtual or real, have some way to tweak the velocity range or sensitivity of their keys, usually by specifying a base/minimum velocity value on setup configuration.
On the other hand, while in Qtractor's MIDI clip editor (aka piano-roll, aka matrix) the velocity value may be only set in the lower view pane, where you can change event bar heights, up or down. Have notice that the last changed velocity value gets remembered as default for the next note you enter in the upper view pane (the piano-roll pane).
Cheers