Re: [Solved] Audio Out of Sync on TCL Roku TV After 14.6 Update?

Hey everyone!

Thanks for reporting!

Status update 6/9: We're currently investigating the audio issue impacting customers with TCL Roku TV, which was out of sync after an update.

To help us know more about it and proceed with the investigation, can you share some info?

• Do you have any other audio devices/peripherals connected to your TV?
• If you have, does the problem persist if you use the built-in TV speakers?

Let us know what you find!

Thanks again,
Roku Community Team

I have the same issue and it started happening at or about the same time frame.  The video is behind the audio.  I tried a hard reset on the TV and it didn't help.  I called TCL and did what they told me to do, it helped a little for about 5 minutes and then went back the way it was, not matching up.  This is happening with all of my streaming apps, MLB, Youtube, Netflix etc.  Is this a Roku system issue?

Model: TCL 66R655
Over the last 2 years, there had been several occasions were audio / video were very noticeably out-of-sync, and in my case always with sound preceding video. Not speaking to external sources like PS4 or PS5 playing a BluRay disc, which have their own challenges... this post is about streaming apps. These issues seemed to have been reigned in recently, until now.

Now, it looks as if the current problem started with Roku OS update 14.6.4 (9905). Audio precedes video by about 250-300ms, and this can be verified with AV sync test videos that are available on Youtube. So I did use the iOS Roku app once more to fix (calibrate) the A/V sync, which only seems to take effect after the TV has been restarted again. 

After restart, the sync is fine for a while. But then at some point (and I cannot find an obvious trigger), audio again becomes out-of-sync (for all apps). Have to restart the TV again to fix this. I wonder if this is the audio/video calibration that stops working somehow. (Might verify my suspicion later on, since the calibration can be reset in the Roku app.)

Notably, some apps still have slightly early audio in general (such as Shudder), which is barely noticeable when things are good, but extra worse when things have switched back to bad. I wouldn't write this post if all this had been old news, but the on-and-off intermittency of the problem ,fixable by restarting, seems new since the last software update.

My audio goes to an AV receiver via optical cable and is configured as such, with Dolby 5.1 as default.

Any advice or other folks experiencing the same?