What is the term for the process of recording replacement dialogue or voiceovers?

• A. Foley
• B. MOS
• C. ADR
• D. Dubbing

Answer: (C)

ADR, or Automated Dialogue Replacement, is the post-production process of re-recording dialogue to replace or add lines in a scene. Actors go into a studio and re-record their lines while watching the filmed moment, aiming to match timing and lip movements so the new dialogue blends seamlessly with the performance. This is used to fix on-set audio problems, improve clarity, or revise performances after filming. Foley, by contrast, is about creating and recording separate sound effects like footsteps or door creaks, not dialogue. MOS means no sound was recorded on set at all, not a replacement process. Dubbing often refers to translating dialogue into another language or replacing the entire dialogue track with a dubbed version, which is broader than the specific post-production replacement of original lines. ADR is the precise term for recording replacement dialogue or voiceovers in post.