![]() Otherwise you will see audio lip sync drift, as every 41.7s or 16.7s respectively, frame duplication occurs.Ģ4fps content (very little content exists with this framerate) needs to be displayed at 24Hz or 60Hz and not 23.976Hz or 59.94Hz. When passthrough audio is used the refresh rates matter greatly:Ģ3.976fps content needs to be displayed at 23.976Hz or 59.94Hz and not 24Hz or 60Hz. Even PAL content (Planet Earth II) would display correctly at 25fps and no more judder on my 4K tv while it dropped frames or whatever it does to keep the 23.976 fps.Ĭonsidering the OP is using S/PDIF I’m not sure how the cable part pertains to said:Ĭonsidering the OP is using S/PDIF I’m not sure how the cable part pertains to him. I pulled a cable from my 4K panasonic player in place of the one from my HTPC to the AVR and that seemed to display correctly, everything saying 23.976 and no (60). I found that by using the ‘i’ key and seeing that while I had synced the display to content, that the GPU and Display both said something like 23…976fps (60),which indicated to me that something was off. I also found that it may have been partially due to a HDMI cable that wasn’t apparently the 18Gbps spec that the rest of my system was (I pass my audio through to an AVR). My resolve, after hours of painstaking troubleshooting, including new video cards, cables, reinstalling Windows 10 pro, was to Sync display to content or I think it’s called Allow Display mode switching. I was having this problem as well, it persisted from the 1.2.x and 1.3.x versions to the new 2.1.1. The only cases which would affect both PMP and other clients are problems with transcoding, or with broken files. Let me know.Īlso reminder that this forum is about PMP only - not with using Plex though any other client. If anyone is particularly patient we could do special test runs to produce better logs. with direct play or transcode? playing from a local or a remote server?.does it matter whether refresh rate switching is enabled? at which rates?.does seeking fix it? (generally the answer seems to be “yes”).does the debug overlay ( i key in TV UI mode) show anything non-0 in the A/V field?.which platform and OS version (Windows/Mac/Embedded).does it matter whether compressed passthrough is enabled or not? (check debug overlay via i key in TV UI mode). ![]() does it happen with any audio/video output, or only e.g.(I could never reproduce any of them myself.) But I’ve also heard about audio sync problems from the beginning, so older builds would not help with this. I’m afraid it’s hard to make older builds accessible since most of them have probably deleted, and there are other… reasons. No lag/delay while playing, but the audio was stuttering a bit on my second attempt. Info about the media: Using direct play or 2Mbps transcode (*I don’t see this problem on my windows 8.1 PC (media player or web player) I gave up using the media player and used the web player, which seems to have no issues on the same windows 10 computer. While playing a movie with plex media player, the audio starts synced, and then slowly drifted behind the video.Įxiting the video and restarting it where I left off can fix the sync, but it continues to drift.
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