Audio Drift Variable Frame rate Twitch VOD problem

Mack-C wrote on 4/15/2022, 10:02 AM

Not sure If this is the correct place to post this but I desperately need help!

Been dealing with this issue for a while and its beyond my understanding!

I am an Editor for a Full time twitch streamer and 3 days a week I download his Twitch Vod straight from the website and edit it down into a 25 minute recap video for YouTube. Usually everything is hunky-dory and works fine. But on multiple occasions when I go to download his vod from the previous night everything looks all fine and synced up when watching in Windows Movie player but as soon as I import the 8 hour vod into Sony Vegas the audio is out of sync and continues to drift and become either more out of sync or more in sync and I cant seem to figure out how to fix this!?

I have watched countless guides on how to fix audio drift from changing the compound reader to FALSE but all that does it make vegas super slow and laggy for me. I have tried renaming the file to .dif, changing the frame rates inside of Vegas but nothing works. I was told to process it through Handbrake but since its such a large file it would take all day to process it and would make my work flow incredibly inefficient.

 

Can anyone explain what is happening and if there truly is a way to fix this without using handbrake?

 

Thank you.

 

Comments

rraud wrote on 4/15/2022, 10:21 AM

Vegas does not behave well with 'variable frame rate' files, convert to a constant frame rate prior to editing. There has been numerous comments regarding VFR on the Vegas Pro 'Video' forum.. search.

Mack-C wrote on 4/15/2022, 10:28 AM

If you read my post you would know I have done extensive research and none of the fixes work. My question was if there is anything besides "handbrake" which seems to be the only solution. Read.

vkmast wrote on 4/15/2022, 12:11 PM

Still using "Sony Vegas"? The last Sony Vegas was v.13, the current VEGAS (Pro) from MAGIX is v.19.

FYI, Sony Vegas vs. VEGAS.

@Mack-C

Former user wrote on 8/20/2022, 1:20 AM

If you read my post you would know I have done extensive research and none of the fixes work. My question was if there is anything besides "handbrake" which seems to be the only solution. Read.

Potentially upgrading to a newer version of Vegas, what version are you using?

It's most likely the streamers 'fault' CPU got bogged down causing extreme variability in certain parts throwing the sync out, or the audio and video are no longer the same length. The other option is not to download the original stream, but download a 720P or 1080P transcode. That way Twitch has to deal with the variable frame rate, but it's transcode should be fine. You can check if that's the case, Twitch real time transcodes may be lower quality