Question / Help A long and arduous problem I need help with (OBS/Audio/Frame Drops)

BlueBoxesL

New Member
So here's the story of my struggle with OBS and Adobe...

First off I started recording in 1920x1080, 60fps into Mp4. I know my PC isn't amazing but I was testing the recording and the output video looked and sounded absolutely fine, no issues. All in sync, no lag, just fine.

Then I moved it into Adobe Premiere and here the issues began. There was gradual desync in audio that started out perfect but by the 1 hour mark was about 3 seconds off from the sound. I discovered that people blamed 'variable frame rate' for such problems but OBS is meant to film in Constant Frame Rate. I even tried Handbrake (and its 10 hour conversion time) but guaranteeing a CFR did nothing to affect the sync problems.

I asked for advise and was told to check the log, which showed a fair number of dropped frames (enough to cause a problem) which was blamed for the desync. But why just the video and not audio also? That just means PrPro is unusable with OBS mp4 files since I get a fair number of drops even sitting at desktop...

So I tried filming into .mov instead. And it worked! (kinda). Not only did the video output look nearly identical to the mp4 version but it didn't have the massive sync issues in PrPro, everything lined up fine. So what happened to the dropped frames...? I have no idea.

The solution seemed to work until I discovered that encoding from .mov into the .mp4 format I needed from Adobe Encoder took TWENTY TIMES the video length, because it was going .mov > mo4. Completely unusable, no way in hell.

So basically I NEED to record into mp4 for any of my projects to work. But how can I do that if OBS is dropping frames, and by extension PrPro is messing up the audio as a result? If that's even what's going on here, I wouldn't know.

At my wits end and need some advise. Does anyone know a means of making the audio sync properly, or why other formats like .flv and .mov have no issues at all? And can I apply these traits to mp4 without doing a 20 hour encode?
 

BlueBoxesL

New Member
Also, looking through the OBS forum I found this comment being supported on an OBS Studio thread about frame drops

"Dropped frames don't happen in recordings. EVER.
Frame dropping is purely a streaming thing."

Am I misunderstanding something?
 
Top