A term describing instability on the time axis. In video, jitter appears as image vibration and breakdown. Special, mainly digital equipment, is used to correct jitter (see TBC). Jitter is far more important for digital video signals – SDI signals for example. Digital clock jitter that accumulates along a video transmission line can create an abrupt signal loss (Cliff Effect) and special electronic circuitry is needed to restore stability (see Reclocking).
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