Soundbar audio is out of sync with the video (lip sync)

Symptoms

• Dialogue lags noticeably behind mouth movement
• Sound plays slightly before the video on screen
• Delay is worse on streaming apps than live TV
• Delay changes depending on the sound mode used

Likely causes

• CommonTV video processing adds a delay audio doesn't matchPicture enhancement modes on TVs can slow video just enough to fall out of sync with sound.
• CommonSoundbar's built-in audio sync offset needs adjustingMost soundbars have a manual delay setting meant to compensate for this.
• PossibleSurround or virtual sound mode adding processing timeEnhanced sound modes analyze audio before playback, adding a small delay.
• PossibleStreaming app or source device buffering audio differently than videoSome apps handle audio and video streams separately, causing drift.
• Less commonOutdated soundbar firmwareOlder firmware may lack proper sync handling for newer TV features.

What to do

1. Look in the soundbar's settings or remote for an 'audio sync' or 'audio delay' option and adjust it in small increments while watching a talking scene.
2. Turn off any TV picture processing modes like motion smoothing or game mode toggles, since these can shift video timing.
3. Switch the soundbar out of surround/virtual sound modes temporarily to see if sync improves.
4. If using a streaming device or game console plugged into the soundbar (not directly into the TV), try plugging it into the TV instead and passing audio out via ARC.
5. Restart both the TV and soundbar to clear any temporary processing hiccups.
6. Check for and install any available firmware updates for the soundbar through its app or settings menu.
7. Test with a different input source (like a DVD or different streaming app) to see if the delay is source-specific.

When to call a pro

If delay persists across all sources after adjusting sync settings and updating firmware, contact the manufacturer's support, as it may be a compatibility issue.

Safety