The clapperboard is used to sync sound and image during editing.
✓ TRUE FACT
The “clap” creates a sharp audio spike and a visible closing frame, letting editors align the sound wave with the exact moment the slate snaps shut. It’s especially useful when audio is recorded separately from camera footage. (In Depth Cine)
🤯 "The clapperboard is used to sync sound and image during editing — old school tech wins."