There is no longer delayed audio peripherals since the Plex 1.107.1.293 update

[BigWheel]

You should be able do this.

No Audio-Delay for Plex?

So the answer is: put a lua script in in the AppData\Local\Plex\scripts folder like this one: -- Define the function to set the audio delay function setAudioDelay() local delay = -0.1 -- Adjust this value as needed mp.set_property("audio-delay", delay) mp.msg.info("Audio delay set to " .. delay .. " seconds") end -- Call the function when a file is loaded mp.register_event("file-loaded", setAudioDelay)