(1) A time-difference correction made between two or more devices to achieve proper synchronization. For example, if a VCR and multitrack are 1.5 seconds out of sync, instructing the synchronizer to calculate an offset for that amount could resync the sound and picture.
(2) Also a correction that affects the onset of an event. For example, a velocity curve offset defines a threshold below which no velocity data is sent. When the velocity value exceeds the threshold, velocity response follows the selected curve.