Question / Help Sound cuts off/desyncs in local recording with NVENC

m00sician

New Member
Hello!

I've had this problem for a while now, but I always thought that it's due to a slow HDD. I bought a new one today (1TB, 7200rpm) and tried out recording some footage again and the same thing happened there again. My problem is the following:

I stream and record the stream seperately on two OBS. One OBS shows the raw game footage and records it in a high bitrate (1080p60fps, 30.000kbit CBR via NVENC), the other one streams (720p30fps 3.500kbit CBR via NVENC) with webcam, overlay etc. The streams works fine but when I check the local recording the sound stops for a few ms up to a second every ~30 minutes and then just continues, cutting the audio short. It results in a desynced audio which gets worse every 30 minutes.

By the end of a 2 hour recording there are over 6 seconds of sound missing.
http://i.imgur.com/9F7pN3J.png
http://i.imgur.com/wsqMtMh.png

It used to work fine with long recordings in the past and I can now fix it by simply not recording for longer than 25~30 minutes, but sometimes I'm either in the zone or simply don't feel like breaking the recording into pieces when I can do it just fine in Adobe Premiere.

Does anybody know how to fix it? I'd like to keep recording with NVENC or QuickSync as it really reduces the CPU load.
 

m00sician

New Member
It happens regardless of resolution/fps, but it seems exclusive to NVENC and QuickSync. It hasn't happened yet while recording with x264.

I can provide a log later, I'll run a quick recording and post it as soon as its done.
 
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