LG Cinebeam Projector is featured with AV Synchronization Adjusting function. Follow the tip below to know more about it.

Guide for Adjusting AV Synchronization

(Q. Settings) → [Sound] → [Advanced Settings] → [Match Screen and Sound]
Adjusts the synchronization of the sound from the speaker that is working.
The closer the value is set to 60, the slower the voice output speed will be than the default speed.
If you select the [Bypass], Outputs the sound from external devices without any audio delay. The audio may be output before the video because of the time the projector takes to process the video input.
• The adjustable items vary depending on [Sound Out].

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