![]() Click here to view the step-by-step instructions on how to update your sound bar with the latest firmware/softwareįor additional assistance, click here to contact us. If you are still experiencing lip-sync issue, we recommend updating the software on your TCL Sound Bar.But if that was the case, then connecting the Xbox directly to the soundbar would show the same delay, which doesn't seem to be the case. Try changing the source on the sound bar. Regarding the native surround audio of the console being in LPCM, it does make sense that encoding to DOLBY MAT 2.0 would take some additional delay for non-Atmos content.If you are watching through antenna, cable or satellite tv, try switching the channels to see if audio delay occurs on other channels. ![]() ![]() If you are streaming content, try changing to another streaming app/channels to see if audio delay will also occur.Try turning off and then turning on the TV and the sound bar.Make sure there is a check mark on the PCM Stereo.From the Home screen, use your TCL TV remote and navigate to Settings> Audio.Make sure that the “S/PDIF and ARC” is set to PCM-Stereo under TV’s setting -> Audio Setting The only workaround is to use a direct Xbox-soundbar connection through optical output and youll have Dolby sound without delay, but that isnt a solution for me since I use my TV for movies/music instead of the Xbox and I cant have both optical and HDMI ARC in the soundbar, so Id have to lose sound from the TV apps, use multiple remotes for.Most TVs will have a Lip Sync or A/V Delay setting in the Audio. Play a video or content every after step to verify if the issue has been resolved. Therefore, there will most likely be a delay between the audio from the bar, and the TVs image. To prevent or correct a lip sync problem, follow one of the steps below. In that case the audio is probably the same for both but the video is processing 80ms faster in game optimizer. game mode adds 80ms of lag over other modes for sure. It is either the video lags behind the audio or vice versa. In movie mode, the TV has a 39ms delay compared to it, and in game mode, it has a 120ms delay compared to it. This way both the Xbox and TV can be direct plugged into the switch, which plugs into the soundbar - with the switch selecting the active device for sound. For your setup what I would recommend is adding a cheap Digital Optical Audio switch. What is Audio Delay or Lip Sync? This is a symptom that describes an occurrence when the video of a person speaking on the television do not match the sound of them talking. The best option is to have optical audio from the Xbox direct into the soundbar.
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