![]() So it seems to be a partial fix but still having the issue with many of the files as I mention even with those using stereo files. For example the Witcher played smoother using stereo AAC over the Eac3 file though still not perfectly flawless, a mission impossible played smoother moving from DTS to Eac3, but then on Princess Bride there was no improvement moving from DD5.1 to AAC stereo. After your suggestion I went back and tried using stereo or lowest bitrate audio on files that had them. But it still occurs on others, now these are mostly Eac3 files with higher bitrates but wouldn’t think that this would be a deciding factor. It does seem to help some videos to use a stereo or ac3 5.1 file. This is a good thought but I’ve tried this fix. Plex server is version 4.69.1Īppreciate your response. The Apple TV is brand new 4k with os 15.2. The NAS never runs more then 15% utilization of memory or 10% CPU on its resource manager. It’s all direct play with no transcoding on video or audio when monitored on Plex dash. On the Plex server it says it’s running 30-40mbs with occasional spikes but nothing above low 100mbs and there is no correlation with spikes and stutter, if anything with the larger spikes it plays smoother for the next few mins. NAS run off a synology 920+ with IronWolf drives in Raid 5 with 8g of memory and 1TB cache ssd. So I’m at a loss, if anyone has an idea what’s going on I’m needing something cause I can’t find any other ideas in the threads I’ve found. ![]() Frame-rate set to same as source and again plays fine in VLC so not intrinsic to the file. I encode all my own files with handbrake. Does the Apple TV 4K not buffer enough? I even saw a thread mention changing Apple TV setting to “match source” which I did but it didn’t chnage anything. It’s also not file corruption as I can open the file directly on a wired Mac with VLC and the files play without errors. Also have seen that subtitles can sometimes cause compatibility issues but this occurs with them on or off with similar frequency. ![]() I also tried infuse app and while the stuttering was definitely less it still occurred. ![]() And the server logs will run up to 300-400mbps initial spikes then drop back into the 30s with expected spikes into the 80s to low 100s so doesn’t have a data bottleneck. And on speed test with Apple TV wires running 1gig. I assumed it was a Wifi issue with stability but despite switching to a wired connection it still happens. It also doesn’t affect Every 4k file just a large percentage of them. And it happens in files with bitrates 15mbs or 45mbs so seems to be exclusive of bitrate. It doesn’t seem to make a difference if it’s mkv or MP4 as it occurs with both file types. I haven’t had it effect any dvd or blue ray files even those I have in 10bit as well. This only seems to be an issue with 4k 10bit videos coded in either h.264 or h265. It just stutters or jerks then will smooth back out. It doesn’t effect the sound and the app doesn’t give the buffer wheel. So when I run certain files from my Plex server I get stuttering in the image every 5-10mins for a few seconds. I’m trying to start adding more 4K content to my library but I’ve hit a wall. Please go to the relevant subreddits and support forums, for example: Build help and build shares posts go in their respective megathreads No referral / affiliate links, personal voting / campaigning / funding, or selling posts Welcome to /r/Plex, a subreddit dedicated to Plex, the media server/client solution for enjoying your media! Plex Community Discord Rules Latest Regular Threads: No Stupid Q&A: Tool Tuesday: Build Help: Share Your Build: Submit Troubleshooting Post Files not showing up correctly?
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