Movies with DTS plays fine but the ones with AC3 Files doesn't output any sound.. it was working before

Hi i bought the new Apple TV 2021 to replace my older Apple TV 4K , and i updated TVOS to vers. 15 , plex is running on a imac 5K 27 inch Version 1.23.4.4712 and on the apple TV side as a plex pass member i run the latest beta version 7.19.1(295) who tries to deal with the Jog wheel on the siri remote…

PLEX and Apple TV ( both the older Apple TV 4K and the new one btw ) always works like a miracle anything i throw at it, 4K, HDR , DTS , AC3. … but i dunno why or what it causing this issue, but we wanted to rewatch all the game of thrones seasons, the first 4 ones, are like 50 Gb DTS sound, and no issues, but all remaing seasons are in AC3 , and usually AC3 is direct playing, no need to transcode with or without subs, but no matter what episode i choose , each time there only AC3 sounds files on the mkv movie, it start playing like no issues but no sound comes out my OLED LG C6 Display attached via optical to an LG SH8 Soundbar with rear speakers… i’m sure this have to do something either with TVOS 15 but i’m not sure, or maybe the newer apple TV 4K 2021… i tried to change the settings multiple times on the Imac side of plex media player, and on the Apple TV PLex app side, but there are not a ton of options, and it’s logical cos it worked previously… i do not really mind transcoding but sometimes the movie plays like 480p and the sound level suddenly drops at time… each time i switch back to direct play , it say’s noting particular ,

Day 3 before posting : i found out that switching to the old player in parameters makes direct play possible and the AC3 is coming out from the speakers, but i tried this morning to switch back to the new player with detailled playback info , i can see what is the issue and i dunno if it’s because of TVOS 15 beta, or the new Apple TV 4K 2021 , or just a bug …
it says while playing any of the GOT episode in direct play in audio it says
Codec : AC3 (audiotoolbox )
Bitrate 448000
Channels (nul) ((null)) > (null) ((null))
Output Driver : (null)
it’s weird cos it’s an ac3 files , and on the info pane via swiping down it says direct play video H264
Audio AC3 … and still no sound
when i switch back to the old player , it always starts these episodes who have some forced subs on transcoding , so i often force the player to use direct play cos it seems to me that it uses less ressources and no issue with sound both via direct play or transcoding , the weird thing with the old player , even when i force it to direct play , with forced subs or without , in the detailled info pane, it doesnt say direct play Imac… it’s say Transcoding
Video : Copy H264
Audio : Copy AC3
player AVPlayer
I’m French but there is a little sentence that says the app cannot use direct play profile for http protocol with the mkv container using H264…

sorry for the long post, but english isn’t my mother tongue, and even though i understand it well and a long time ago spoke very well this langage , i have a hard time to make it short xD

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.