A/V Sync

The A/V sync in my backyard is broken. Way down on the other side of the neighborhood where construction is taking place, when the machinery makes a sudden motion that causes a sudden noise, it is evident that the audio has fallen behind by a small fraction of a second. I'm going to go find the foreman and tell him to push the audio track forward about a quarter of a second. Maybe a little more. I wonder if he'll just stare blankly at me.