Around my house I use 3 Raspberry Pi 4s, each of which has an official DVB hat fitted.
Two of them are connected to Samsung 4k TVs and the other to a Samsung HD TV. All are patched up to date and run Librelec 9.2.3.
Generally things are working well - but in order for TV programs recorded with TVHeadend to have sound in sync with the program I have found I am forced to set "Adjust display refresh rate" to Always and "Sync playback to display" to fix it.
However I have a very odd problem when watching other content because the audio sounds like it recorded on 'elastic' which is currently having its tension altered so the pitch is always changing.
This seems to happen with 2160P 24 frames per second recordings and 1080P 24 frame per second recordings alike. The video playback is fine.
Can anyone point me in the right direction as to what is going wrong please?
Thanks in advance!
ps - In case its relevant I'm in the UK and TVHeadend records at 50fps.