🚀 go-pugleaf

In article <1171@osiris.UUCP> phil@osiris.UUCP (Philip Kos) writes:
>Question for all you serious broadcast people out there: I imagine the
>original chroma key hardware was analog.  Is it still done that way, or is
>it done digitally now?  Seems to me that with these new-fangled digital
>video controllers stuff like this would be getting much simpler, if not
>cheaper...
>
Typically, the computer is phase locked to the incoming video signal.
The actual switching is done with analogue hardware. This avoids ever
having to digitize the incoming video signal ( an expensive proposition
).

I've heard of full digital units which do digitize the incoming video.
These often give you other bells and whistles like freeze frame, color
and contrast corrections ( under software control ), and frame
grabbing. They are more expensive then your run of the mill genlock.

Hedley