Question / Help Desync between Webcam and Voice after awhile

[SasZ_]

Hello, i´m a streamer from germany with a small community, but i would like to give a good quality to my viewers.
i apologize for my english skills ^^ i hope you guys understand my problem.
So i would like to Stream with a Webcam (Logitec c920) and do the annotation with my Auna 900b Mic.
I grab the Video/Audio Signal from my PS4 with the Elgato Game Capture HD60.
when i Stream without Facecam, everything is fine. it works perfectly at 720p/30fps and no Delay between Game and Mic.
but when i plug in the Face Cam (Every Source is set as Global Source in OBS) the Stream starts perfectly in sync. And then, after 1-2 hours of streaming, my voice is delayed a bit to the Cam.
The Delay Settings are the following:
Elgato HD60 ( 0 ms Delay )
Auna 900b ( 600 ms Delay )
Logitec c920 (600 ms Delay )
with this setting, everything is nearly perfectly in sync.
Why is there a Delay after awhile?

I also tried the Audio Source in the Webcam settings. Same Problem happend!

I hope you Guys understand my problem.

the Log File is attached!

Thanks a lot! ;)

 

[Xendran]

Having sync issues here. My webcam is set to 350ms delay, but that delay gradually increases overtime.
It's making original OBS absolutely unusable for any sort of quality streaming.

 

[SasZ_]

So, nobody here to help out a little? :) it would be really nice if someone could help me with this problem i posted above! ;)