Scaling Velocities Many times existing note velocities already have the relationship between them that you want, but are either too soft or too loud overall. In these instances, use the Scale By option. For example, to make velocities 20% louder: 1 Select the range of MIDI notes to be edited. 2 Choose Event > Event Operations > Change Velocity. 3 Select the Scale By option with the percentage value set to 120. 4 Click Apply.