OBS Recording with Elgato Camlink 4k and Sony 5100 lags

[STORM_Sektor8]

Hi all,

i have huge issues with my OBS recordings. How my setup look like:

- Sony Alpha 5100: HDMI clean output, 1080p
- Elgato CamLink 4k
- CPU: Intel XEON E3 1245v2 3,4GHz
- RAM 32 GB

I have connected my Sony through the CamLink capture card with my computer. I have a resolution of 1920x1080px. My settings for OBS Output > Recording are:

- Output Mode: Avanced
- Type: Standard
- Recording Format: mp4
- Encoder: x264
- Rescale output: deactivated
- Rate Control: CBR
- Bitrate: 8096
- Keysframe: 0
- CPU usage: veryfast
- Profile: None

The records works in general fine and when i start the recorded video in VLC or Windows Media Player it totally lags. Its like i am moving in slow motion (not that extreme but it looks not nice :)

I want to say, that i had previously (6 month ago) a AVerMedia Live Gamer Mini 1080p60 Capture Card which had no issues. In the meantime i have sold it and bought myself a CamLink 4k, and i also resettet my Sony to "factory settings" and configured everything from beginning. This seems to be a big mistake.

I hope someone can help me.

best regards
storm

 

[STORM_Sektor8]

I am attaching here the log file for more information on this issue.

 

[STORM_Sektor8]

One more update: i have installed OBD-NDI and connected my iPhone with OBS and did some recording. There is no issue with OBS NDI! No lagging. Seems to be an issue with CamLink 4k or Sony 5100 !?!?!?

 

[STORM_Sektor8]

Ok, solved. It was an issue with my USB Hub! CamLink 4K is an USB 3.0 Device. I had plugged it into my USB 2.0 Hub - oh my god !