Black and burst

A composite color video signal comprised of sync, color burst and black video.
1440px Black And Burst Zoomed In On A Waveform

Black and burst is an analog signal used in broadcasting. It consists of a video signal with a blacked-out picture. It is used to synchronize video signals together to put them on the same timing plane. It provides vertical timing that allows synchronous switching between two video signals.

Black and burst also locks the color phase between signals. The burst section of the waveform allows the phase relationship of the two signals to be timed together by sending pulses to the internal oscillators of the equipment.

Key Terms

analog signal
bi level sync
black burst
video signal
video signals


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Black and burst
Video sync
House sync
Bi-level sync
Black burst
Bi-level sync


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Sources & Credits

Last modified on August 25 2019
Content adapted from Wikipedia
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