P-20HD: Is it possible to adjust the lip-sync between the audio input from the [AUDIO IN] jack and the video input from HDMI? June 04, 2021 01:38 Updated Follow P-20HD FAQ Yes. Go to [MENU] -> [Audio Input] -> [AUDIO IN] -> [Delay] to adjust the lip sync. Delay time can be adjusted from 0.0 to 95.0ms. Related articles P-20HD: Is it possible to use it continuously for a long time with the power on? P-20HD: Is it possible to advance the playback video (replay) frame by frame? P-20HD: Is it possible to add text to the replay so the audience knows it isn't live?