Which process converts film frame rate to video by adding frames and slightly slowing the audio to maintain timing?

Which process converts film frame rate to video by adding frames and slightly slowing the audio to maintain timing?

• A. 3:2 pull down
• B. ADR
• C. Backgrounds
• D. AAF

Answer: (A)

3:2 pull-down is the technique used to bring film at 24fps onto video that runs at a higher frame rate (like 29.97 or 30fps) by adding extra frames in a regular pattern and nudging the audio so the timing stays in sync. In practice, certain film frames are duplicated in a repeating 3:2 sequence to produce the longer video frame rate, so the motion looks correct on video without changing the source content. Because this adds frames and shifts timing, the audio is slightly slowed to keep lip-sync and overall timing aligned with the video. ADR, Backgrounds, and AAF aren’t related to this frame-rate conversion: ADR is re-recording dialogue, Backgrounds are plates for compositing, and AAF is a file format for project interchange.

3:2 pull-down is the technique used to bring film at 24fps onto video that runs at a higher frame rate (like 29.97 or 30fps) by adding extra frames in a regular pattern and nudging the audio so the timing stays in sync. In practice, certain film frames are duplicated in a repeating 3:2 sequence to produce the longer video frame rate, so the motion looks correct on video without changing the source content. Because this adds frames and shifts timing, the audio is slightly slowed to keep lip-sync and overall timing aligned with the video. ADR, Backgrounds, and AAF aren’t related to this frame-rate conversion: ADR is re-recording dialogue, Backgrounds are plates for compositing, and AAF is a file format for project interchange.