Effects Out of Sync
"Effects Out of Sync” refers to sound effect timing that does not match on screen coincidence.
Effects out of sync impacts Technical and Content quality of the asset. The customer experience is negatively impacted if timing of sound effects do not align with on-screen cues. It can take them out of a seamless viewing experience.
Effects are 1 frame or less earlier or later than on-screen action.
Effects are 2 or more frames earlier or later than on-screen action.
How to Prevent:
Review audio on timeline and ensure it is properly aligned with on-screen action, as sync can easily shift during an edit.
Verify that audio and video have been recorded at the same frame rate.
M&E QC will help prevent out of sync effects tracks from being duplicated in all dubs sourced from the M&E assets.
Fix effects sync on timeline and re-export audio as needed. Check the M&E for the same issue, and redeliver M&E as well if necessary.