Lip SyncingList 4 ways in which lip syncing might be used

Post production:

1) Additional Dialogue Redub. E.g. Loud background noise or insufficient space on set for a boom mic.

What is Lip Syncing and when might it be used?

2) Animation/Games: Matching the actors voice to an animated character.Up (2009) Diablo (2012)

3 )Music: matching lip movements with sung or spoken vocals. 4) Dubbing foreign language films