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Topic: 4K/HDR Audio Out Of Sync

i set up a profile (apply this profile if) that disables svp interpolation (do frame rate conversion - off) when a 4k/hdr file plays, yet for some reason it causes audio to be completely out of sync despite low cpu/gpu % loads, no dropped frames, and a clock deviation that's almost perfect... to be clear we're not talking about audio being slightly out of whack, instead it's way out of whack... the only way to get audio back in sync for 4k/hdr files is to temporarily disable svp in settings or, of course, exiting svp all together, in which case audio is perfect...

this problem does not exist with 1080p files, audio is always in sync with interpolation on (do frame rate conversion - on)... i even set up a test profile (apply this profile if) that disabled svp for 1080p files (do frame rate conversion - off) to see if "apply this profile if" was causing the problem but it wasn't, audio was fine for 1080p.

any thoughts? thanks!

Re: 4K/HDR Audio Out Of Sync

which OS and video player?

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Re: 4K/HDR Audio Out Of Sync

Chainik wrote:

which OS and video player?

thanks for the reply!

- windows 10 x64, latest updates
- potplayer x64
- lav filters

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Re: 4K/HDR Audio Out Of Sync

btw i came across this post that sounds like the same problem i'm experiencing:


@kathampy 15-11-2019 12:40:29 (edited by kathampy 15-11-2019 12:41:58)

HDR works with the latest update, but it stutters constantly when SVP is enabled, even if frame rate conversion is disabled. SVP must be disabled to stop the stuttering.

https://www.svp-team.com/forum/viewtopic.php?id=4888

Re: 4K/HDR Audio Out Of Sync

> i set up a profile (apply this profile if) that disables svp interpolation (do frame rate conversion - off)

you can also press the red stop-sign button there to disable SVP in this profile (not just interpolation but ALL processing i.e. frame crop/resize + outer lighting)