Printer sync

 

Film image and sound components that have been synchronised with the sound leading by an appropriate amount for printing. Opposite to level sync.

The sound head of a 35mm projector is 19.5 frames ahead of the corresponding image. This means the soundtrack must be printed this far ahead on a length of film.

The sound can be in ‘level sync’ for editing but must be advanced to ‘printer sync’ before printing.