automatic dialogue replacement

Automatic Dialogue Replacement (ADR), also known as dubbing or looping, is a post-production process in filmmaking where new dialogue or sounds are added to a film's existing soundtrack. This is often done to correct issues from original recording, such as unclear dialogue due to background noise or microphone placement. ADR allows filmmakers to achieve high-quality dialogue regardless of on-set conditions. It is also used to translate foreign-language films, though subtitles are sometimes preferred for maintaining artistic quality. In some countries, dubbing is extensively used, making it less expensive than synchronized filming.12