Just before a film, or interview or whatever starts, there is a little machine called a “clapperboard” where someone says “3…2…1… action” and slams down the top 1/4 of the thing to the rest of it. What is it used for? It also has numbers on it and I guess indicates timing. What is the point of it?
In: Technology
The clapper is used to synchronize the audio and the video in a movie. Editors can pinpoint the exact frame where the clapper snaps closed and match the audio to it.
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