PLEX on Roku audio issues since latest Roku Ultra update

Something I’ve noticed is my dedicated Roku devices aren’t having the MKV AC3 audio delay anymore (and I don’t have auto-adjust display refresh rate enabled). This is on a Roku 3 and Roku Ultra.

My TCL TV is still having the problem and I have Direct Play disabled as workaround (auto refresh rate is not an option).

I have a test file I’ve been using since the start and it plays fine on the two dedicated devices now but the TCL TV is still having the issue. All of the devices still show their original “last update” version update to 9.4 back on December 10th.

Anybody who has been having this issue notice anything similar?

Interestingly, I did have a movie that had an audio tracking issue on my Ultra and had to turn Direct Play back off … but perhaps that was a one off as my test files work as expected (still broken on TCL and working on dedicated devices).

Hopefully the Roku OS 10 update will fix the TCL TV.

I’m still noticing this issue on TCL Roku TV but not on my dedicated devices (different Roku versions). Has anybody noticed any further issues on their dedicated Roku devices? I haven’t seen any posts about it lately - not like it was a few months ago - so I’m assuming it’s been fixed for most people?

I gave up a few months back and switched to the Apple TV client. I wonder how many others switched clients as well.

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I also gave up, I’m using Nvidia Shield.

Funny how Plex went thru “lets make everything the same”, yet an extra button push here and there, not updating the watched status once you’ve watched something (on the Shield), I’m kinda meh on the whole thing…Trying Emby.

I also process things differently now, I’m using an ffmpeg instead of mkvtoolsnix. Processing with ffmpeg plays sync’d whereas processing with mkvtoolnix it doesn’t.

How are you processing things?

I run them thru ffmpeg-normalize to set the sound levels then mkvpropedit to change subtitles “default” to “off” (else they will always play), finally, thru mkclean (supposed to move some things around within the mkv container file so they play faster). I settled on only mkv files awhile back because they handled subtitles the best.

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How are you using ffmpeg-normalize? Since it reencodes the audio, are you encoding to AC3/EAC3?

I use eac3, command line options I use - --dual-mono -c:a eac3 -ar 48000 -b:a 640k -of

I was doing some old stuff awhile back, so --dual-mono makes both audio channels the same if it finds only one audio channel, if both are present doesn’t so a thing, so it seems safe to leave on all the time.

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Looks like Roku OS 10 fixes this for TCL TVs (my test file worked) … looks like dedicated Roku devices are okay now as well.

Since the 10.0 update, I have audio dropout issues every 10-15 seconds that are driving me insane! I’ve tried changing the various passthrough audio settings around, all same result including stereo. The sync does indeed look fine but the audio dropouts are almost equally as annoying. I even tried doing a factory reset last night but same issue persists. Anyone else having this at all or know anything else for me to try?

Did you try disabling Direct Play as mentioned in an earlier post? That resolved the issue for me.

I thought that was the fix for the audio being out of sync. I also don’t like doing that because I have many 4k vids that won’t play like that and I have to keep going back and changing it.

Gotcha. Yeah, that fixed my audio dropout issue, similar to what you described. I do not have any 4K content so I do not have that side effect.

I’m having the issue on my TCL Roku, but the Roku Stick upstairs seems OK.

Make sure you have the 10.0 update - so far seems to have fixed it for most except for what looks like a possible HE-AAC bug that was introduced but beta Roku app has a fix for that coming…

The update seems to have fixed the issue on my Roku Ultra as well. Took them long enough :slight_smile:

I disabled Direct Play because of this issue, I have to switch it back to check on my Roku Streaming Stick+.

I’ve switched back the direct play option and it seems on my Roku Streaming Stick+ the audio issues are solved in the case of DDP5.1 (EAC3) audio, which had been skipped every 5-10 seconds. Instead of the EAC3 audio, now the DD (AC3) Stereo has the same dropout issue as the EAC3 before… :frowning: I have to check my tv-series with AC3 5.1 to see what’s the case with them…

The audio issues are still present on the Roku Streaming Stick+ but don’t seem as bad as it was.