[LG TV] How Do I Sync the Picture and Sound? (Audio and Video Out of Sync)

If the voice does not match the lip movements on the screen (lip sync issue), first check if this occurs only on specific channels.
If the audio is out of sync on all channels, you can fix this by turning on [Bypass] or adjusting the delay value in the [Match Screen and Sound] settings.

Why are the Audio and Video Out of Sync?

• If the audio is out of sync only on specific channels: This is likely due to a broadcast signal issue, not a defect in the TV.
  Please contact your service provider for assistance.
• If the audio is out of sync on all channels: This is usually caused by connected external speakers (e.g., sound bar) or internal processing delays.
  You can synchronize the audio and video by adjusting the TV settings.

How to synchronize Audio and Video

For 2025 and Newer Models (webOS 25 or later)

1. 1. Press [Settings] on the remote, then select [All Settings] at the top left on your screen.
2. 2. Select [Sound], then select [Advanced Settings].
3. 3. Select [Match Screen and Sound], then set [Bypass] to [On].
   
4. 4. If [Bypass] does not resolve the issue, turn [Bypass] off and adjust the [Wired Headphones Delay] value.
   

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This guide was created for all models, so the images or content may be different from your product.