A nominal video signal level is usually 1 volt for Composite video, 0.7 Volts for component or RGB video or 0.3 Volts for the chrominance subsection, at which level a fully saturated picture is transmitted to the acceptor. However, for cases where the video signal is attenuated, a low-noise, high-gain analog amplifier is built into quality video processing equipment. This amplifier provides video gain control whereby the video signal can be boosted or reduced. Dark pictures resulting from low level lighting are easily adjusted. An additional benefit of good video gain equipment is the ability to fade out pictures, for editing purposes.
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