[BUG] Problem with (E-)AC3 Codec and Windows update 24H2

I first tried replacing libmpv-2.dll with the one provided in

Releases · mitzsch/mpv-winbuild

That caused Plex to hang after replacing libmpv-2.dll with a newer version. The fix for me was to just install

Download Dolby AC-3/AC-4 Installer - MajorGeeks

And reboot.

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Since nobody is reading the pinned post as solution i edited the initial post. Also : STOP REPLACING THE DLL FILE AND INSTALL THE PROPER CODEC :**
[BUG] Problem with (E-)AC3 Codec and Windows update 24H2 - #77 by harisled
THIS IS A PERMANENT SOLUTION, THE MPV REPLACEMENT DOESNT WORK LONG TERM

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2 Likes

I fixed it with those solutions too at first but there were these ugly programs in my applications so I fixed it with WinUtil Documentation instead as well as the tool can do a great other many things to boost performance and privacy. I used the config tab to install legacy media features

Thank you, this solved my issue!

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This is the only solution that worked for me. TY.

Plex you should fire you dev team and crap support as well.
Keep raising your price and do nothing to fix the mobile app and other issues.

So, downloading the AC3 Codec worked for me, but now when opening the plex app it will either cut all other audio playing if I open it with other things playing (ex, Youtube via Firefox) or if it is the first app I open, all other apps will then not have audio working as well.

There’s a setting you can try checking/unchecking in the Plex for windows app. Not sure if this is your issue though but worth a go?

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Exactly what needed to be done. A little disappointing that plex could not resolve the issue themselves. Thank you to the person who posted the link to the fix, and truly thanks to the peeps that created the fix.

This did it for me. Built a new PC and ran into the same issue, installed the “DolbyLaboratories.DolbyDigitalPlusDecoderOEM_1.1.285.0_neutral_~_rz1tebttyb220 (1).AppxBundle” Windows app from the MajorGeeks download you linked. After installing I closed/re-open the Plex Desktop app and I have audio again on the videos that previously had no audio!

This is a Windows 11 issue and not exactly a Plex issue, but I can understand people’s frustrations.

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Thanks, this was the fix for me.

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BEST SOLUTION BELOW! Legit from Dolby Laboratories. Easy install through MS Store.

this worked for me, thx

replacing the .dll worked for me today.