A/V gets out of sync fast

[sreuter]

I have an issue with A/V getting out of sync on my LG OLED over time. In fact, if I keep it running for a few minutes the lag keeps adding up to multiple seconds and counting.

I tried it on my capture card as well for some streaming. Instead of A/V going out of sync over time, I'm getting some distortion/gap in a fixed interval (maybe every 1-2 sec, can't recount) ...

From a pure "diagnose by listening" perspective it seems like the audio egressing from the interface is not fully fitting the buffer size expected by the receiver. I might be totally wrong tho!

I recorded both issues (direct recording from capture card + camera recording of my tv). Please use headphones when listening to both, as you might not hear the little gap/distortion within the audio capture.

Video recordings