Mondo Knows Facts

Actors often re-record their lines after filming

Automated dialogue replacement fixes noise and rewrites in the edit Automated dialogue replacement, or ADR, has actors watch their performance on a loop in a studio and re-speak the lines in time with the picture. It is used when location sound is unusable, when a line is changed, or when a musical number needs a cleaner vocal. Roughly half the dialogue in a typical film may be replaced. It sits in Mondo's movies & tv collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Academy of Motion Picture Arts and Sciences

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Tags: sound, post-production, dialogue

Actors often re-record their lines after filming: the short answers

Where does this come from, and can I check it?
Automated dialogue replacement fixes noise and rewrites in the edit. The figure is taken from Academy of Motion Picture Arts and Sciences, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a movies & tv fact?
Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.