Thread: Audio sync help
View Single Post
Old 22nd December 2017, 03:55   #16  |  Link
poisondeathray
Registered User
 
Join Date: Sep 2007
Posts: 5,345
Quote:
Originally Posted by darkelf5 View Post
MPC statistics shows that frame rate is about 23 ,so it must be the audio issue, right?
Not necessarily

Quote:
xvid4psp converts it to 23.976 but i don't think that the new versions use AviSynth so there's no script to inspect.

It doesn't matter. It's still the right answer and source filter if you want to edit and use avisynth . The other methods are slightly less accurate and can have slight problems with frame placement. But this assumes your directshow system is configured correctly.


In fact, you can just check it really quickly in MPCHC , jump around a bit. If it's in sync there (assuming you can playback UHD in realtime), then it's almost 100% guarenteed to work if you encode an intermediate first before editing / other filters


What lansing is probably suggesting by "false alarm" , is that there is a small chance you can just assume a CFR framerate by overwriting timecodes, e.g. with mp4fpsmod. Because it looks like it's minimally variable if you assume mediainfo is correct. You would have to extract the timecodes and examine it to be sure. The benefit would be no large intermediate file, and you could use "normal" source filter like lsmashvideosource)
poisondeathray is offline   Reply With Quote