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The Daily Insight

What is AV sync on LG sound bar?

Author

Emma Johnson

Updated on March 02, 2026

LG Sound Sync technology allows you to link your compatible LG HDTV to your Sound Bar wirelessly using Bluetooth®, reducing cable clutter, while also synchronizing the audio between devices.

What is LG AV sync?

LG TV AV Sync Adjustment. Lip Sync (AV Sync) describes when a person on TV speaks, but the words being heard do not correspond with the movement of their lips. The effect is observed by the speaker’s lips moving before the audio arrives, or the audio arriving before the speaker’s lips move.

What is LG AV sync bypass?

If you select Bypass, TV will output the broadcast signal or the soundtrack from the external peripheral device without any audio delay. The audio signal may be output before the video because of the time the TV takes to process much greater resolution video input.

How do I set AV Sync?

  1. Set Digital audio out to PCM. Open the Settings menu. The options vary depending on the model year of your TV.
  2. Change the current A/V sync setting. Not all Androids have an A/V sync setting. Open the Settings menu.
  3. Set Pass through mode to Auto. Not all Android TVs have a Pass through mode setting.

What does F mean on LG sound bar?

a • • • • • • • • • • • • • 1 (Standby): Switches the unit ON or OFF. VOL (Volume) o/p : Adjusts speaker volume. F (Function): Selects the function and the input source. Input source / Function. Display.

How do I fix the sound delay on my LG sound bar?

Push the Home button on your remote. Select the Settings gear icon in the top-right corner. Select Sound > AV Sync Adjustment. Turn On AV Sync Adjustment, then use the left-right slider to delay or speed up the audio to match the video better.

How do I reset my LG sound bar?

How to Factory Reset an LG SJ4Y Soundbar

  1. Unplug the power cable from the back of your soundbar, or the wall outlet.
  2. Wait 10 seconds.
  3. Plug the soundbar power back in.

Why is my sound bar not in sync with my TV?

So how do you fix lag between a Soundbar and a TV? Check your television and media sources for issues, audio reset options, or firmware updates that need to be regularly installed. Check your Soundbar for audio reset options and/or restart the device.

Why is there a sound delay on my soundbar?

What is LG sound sync?

LG Sound Sync Wireless. It’s a wireless connection designed to work with LG soundbars and subwoofers. It allows you to hook up an LG soundbar and/or subwoofer to your TV without having to wire it up and so the sub and soundbar are in synch (which the should be anyway) – so yes, it’s basically a BT connection to their devices.

What is LG sound bar?

Verdict / The LG SJ8 is a great sound bar if you have a small entertainment room and enjoy watching action movies in surround sound. The LG SJ8 has the newest sound bar technology, so it’s a future-proof option to upgrade the sound in your entertainment room.

What is sound sync?

Sync Sound definition. When a picture is being shot, the sound that is recorded at the same time as the picture is called sync sound. A crystal or cable sync is used for sync sound in order for things to be lined up correctly and not be out-of-sync.