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+--- Thread: Problem with audio sync when deinterlacing (/thread-3973.html)
Problem with audio sync when deinterlacing - araset - 19.01.2025
Hi when deinterlacing AVI file with Bwdif (Avisynth) (also tried vapoursynth) audio runs out of synch. AVI file plays fine. I can't upload the whole AVI file because it's very big and on small sample it's ok. It only happens on the big file. Thanks for every help.
RE: Problem with audio sync when deinterlacing - Selur - 20.01.2025
ffmpeg reported on audio extraction reported "time: 03:22:52.20", but Hybrid assumes a length of 12172.2 s for the video which would match that length.
Don't see any errors in the processing, so my guess is that either the source filter has a problem, or the source if vfr.
1. Does it make a difference if you use AviSource as source filter?
(Enabling "Filtering->Avisynth->Misc->Source->Prefer AviSource for avi input" will prompt Hybrid to use AviSource, assuming you got 64bit vfw decoders installed in your system.)
2. Does enabling "Config->Input->Decoding->CFR output" make a difference?
Cu Selur
RE: Problem with audio sync when deinterlacing - araset - 25.01.2025
Unfortunately both methods doesn't work. I have also reinstalled huffyuv codec without result.
https://github.com/hofmand/video-codec-installers/releases
To some point it was working perfectly but then the problem with synchro ocurred and since then I can't fix it. Thanks.
RE: Problem with audio sync when deinterlacing - Selur - 25.01.2025
Try:
1. changing the location of your temp folder so something outside the users home.
2. making sure your antivirus software ignores the temp folder
3. using Vapoursynth instead of Avisynth
If you just remux the input (audio&video handling set to passthrough) is the output still sync?
Does enabling "Config->Automation->On Load->Always extract timecodes from input" and disable 'only some' make a difference?
Does it make a difference if you first remux the file with mkvtoolnix to mkv before feeding it to Hybrid?
Quote:To some point it was working perfectly but then the problem with synchro ocurred and since then I can't fix it.Also try uninstalling Hybrid (including settings) and then reinstalling Hybrid.
Cu Selur
RE: Problem with audio sync when deinterlacing - araset - 02.02.2025
I have reinstalled windows and it helped. I have question about audio encoder. If I want to change my audio to ac3 and for example downmix to mono (because there is only one channel on my audio) I need to install something after fresh installation of windows?When I enable audio encoding options it doesn't change pcm audio stream from avi file to ac3. Thanks.
RE: Problem with audio sync when deinterlacing - Selur - 02.02.2025
No, everything needed for that comes with Hybrid.
You are probably not using it correctly.