What is the difference between a Black Burst Restorer and a TBC?
When sync or color burst information gets lost or distorted, it must be recovered in order to maintain proper signal stability and true color. A Black Burst Restorer strips away all sync and color burst information (the “Black burst” signal) and replaces it with newly generated Black Burst from an internal genlocked generator. In many cases, this solves the instability and the color fidelity problems. In severe cases, when not only the sync and color burst information are effected, but the lengths of the video signal lines are also distorted (as in high generation video tape copies), a Time Base Corrector (TBC) is needed to restore the video signal. The TBC “re-stretches” the video lines to the proper length and restores the sync and color information.
