ADR definitions and the sources:
GOOGLE:
Automated dialogue replacement refers to the process of re-recording audio in a more controlled and quieter setting. Usually captured in a postproduction studio, ADR is a way to improve audio quality or reflect changes in dialogue and performance.
FilmSound.org
ADR stand for “Automated” or “Automatic” Dialog Replacement.
Dialog that cannot be salvaged from production tracks must be
re-recorded in a process called looping or ADR.
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AI:
ADR stands for “Automatic Dialogue Replacement” or “Additional Dialogue Recording.” It is a post-production process in filmmaking and audio production where actors re-record dialogue that was either poorly recorded during the original filming or needs to be replaced for various reasons, such as improving audio quality, correcting mistakes, or adding new lines. ADR ensures that the dialogue in the final product is clear, consistent, and synchronized with the on-screen action.
THE ART
ADR definitions vary. It really depends on who you ask. But regardless, the art of recording and mixing ADR is so delicate that if done right, no one at home would know that two parts of the same sentence were recorded weeks apart at two different locations! ADR definitions
One way to appreciate the ART, is to watch any 70’s tv series like Columbo and pay attention to discrepancy in vocal ambience that sometimes shows up.
