[HELP] MKV (H.264/ACC) for Plex audio sync issues

[evillink]

No problem, send me a link via PM and I'll look into it after work.

Cu Selur

Good morning Selur, I’m quite sorry for the delay of my response but it’s been kind of hectic these past days, I also wanted to run a few more test to try and make sure this same issue happen on other sources, which it did.

Like I said before my source file is a 30GiB 352x480 Huffyuv AVI capture using VirtualDub, and since its not possible for me to upload that file what I did was cut two clips one with just random footage (Tik.avi) and the second one with a person talking (Tok.avi).

Then I combined the two files Tik.avi (x2) + Tok.avi (x1) until I got different length videos and ran them through the same process on Hybrid  MKV[(x264 CRF 20), (AAC LC FDK) and (QTGMC Bob), (PAR 20:11)]  and for short clips 5, 10, 15, 20, 30, 45 minutes the audio pretty much stays in-sync.

I then created a 30GiB file following the same pattern two Tik.avi and one Tok.avi, repeated until I got about 2 hours of footage (the actual length of my VHS tapes) and that’s then the problem appears, you can see how the parts when the person speaks slowly goes out of sync towards the end of the video.

I uploaded the two files to: https://www.dropbox.com/sh/df38hmdkwahyl...qGjaa?dl=0

Thanks for your support and dedication to Hybrid.

PS.
System specs

AMD Ryzen 5 PRO 2400GE (Radeon Vega Graphics) 3.20GHz
16GiB RAM
256GiB NVMe
Win 10 Pro 64-bit (1903)