Hey all,

I am putting on a live event to raise money for actors and artists out of work due to COVID-19 and have been working on the operational side of things to get well prepared for a 24 hour streaming event. Things are coming along nicely and I am cramming in as many vMix tutorials on youtube as possible and applying them to our own achievable outcomes.

One problem I am experiencing is stuttering with my camera's feed only. I initially thought this was an issue with my camera but I opened up OBS and the stuttering didn't occur there - so I am thinking it is an option or something i have ticked or set to in vMix that is causing the stuttering.

My status in terms of rendering, cpu usage, etc. all looks fine. I can definitely provide specs however I am not too computer savvy so would need to know what specs to look for.

Any help you can provide would be so much appreciated!

Regards

Matt

Hey, thanks for the response Vince.

My FPS is 30 | Render Time: 1-2 ms | GPU mem: 2% | CPU vMix: 4% | Total: 25%

It looks like frames are dropping as if I wave my hand around slowly my hand teleports to another location as if it has skipped frames.

I am capturing with an Elgato HD60 S connect up to a Lumix camera. My settings on the camera are matching vMix's capture of 1080p 29.97 fps

When I look at statistics, this is what I see

Input: Game Capture HD60 S | Source Dropped: 0 | Renderer Dropped: 27022 | Resync: 17817 | Queue: 1 | Video: 20 16 17 16 (23) | Audio: 40/67 ms Dropped: 1/0 Resampled: 0/20

I don't know what I am really looking at here - but I will check my capture card internal settings now.

You are dropping like crazy at render time. That’s a GPU issue most likely.

Make sure You have your NVidia/AMD Graphics card selected in settings under performance.

I would have a look here as well: It could just be a configuration issue. VMix will be more picky than OBS.

https://www.vmix.com/kno...2/optimising-performance

Hey guys,

Thank you for your help. I actually changed the rate in vMix to match my camera from 1080p29.97 to NTSC1080p30 and it fixed the frame skip issue. I am still having renderer drop, but not having any resync issues anymore.

It doesn't appear to be affecting the result that I wish to get so there's no real need to fix beyond this point. However, it mentions that a renderer dropping is due to a slower gpu functionality. So would that just be a matter of doing all these optimisation things? I've gone into my Nvdia control panel and selected preferred maximum performance and all that as vMix instructs to do.

Anyway, thank for your help! If I have anymore major issues I will let you know.

Usually, with an Elgato card a re-boot usually fixes that issue. I put My Elgato HD60+ back in the box as a backup.