AM Academy
New Member
Hi everyone.
We've somewhat recently started doing short streams and recording videos. However, all my knowledge on this stuff is based on streaming 8 years ago so it's all a bit scuffed for the time being I guess.
Now we have a Logitech Rally camera as a video input. This camera is theoretically capable of a 4k resolution. But when I have the camera set up at that resolution, the video "lags". It slows down and then speeds up to catch up, if that makes sense. Here is a video we did recently, where this happened a number of times: https://www.youtube.com/watch?v=T6mYMQpK-I4 I have tried a number of different settings, but haven't been able to identify the bottleneck. CPU and GPU both seem fine. The camera is connected using a USB 3 cable to a USB 3 port so that shouldn't necessarily be the issue either.
We don't stream in 4k, so I thought I could just set the camera to 1920x1080 - but for some reason that massively drops the quality. The camera then looks more like 720p. So the downscaling of the camera seems to not be as good. I would rather keep it at 4k because then the 1920x1080 stream looks sharp. It just has these lags which are really weird.
Basically the question is: What is my bottleneck? What is causing this slowdown and speedup? Is it the cable? My settings? The CPU/GPU?
I have attached the log file from that same video I linked. I will edit later with some more PC specs and maybe a task manager screenshot during streaming.
Any help will be greatly appreciated!
PS: The lags keep happening in the Preview WIndow even when I am not recording or streaming. Makes me think it's something with the camera connection? But I just can't be sure. We've added a fairly high-end USB card to try and eliminate that possibility, but it seems to not have done any good.
We've somewhat recently started doing short streams and recording videos. However, all my knowledge on this stuff is based on streaming 8 years ago so it's all a bit scuffed for the time being I guess.
Now we have a Logitech Rally camera as a video input. This camera is theoretically capable of a 4k resolution. But when I have the camera set up at that resolution, the video "lags". It slows down and then speeds up to catch up, if that makes sense. Here is a video we did recently, where this happened a number of times: https://www.youtube.com/watch?v=T6mYMQpK-I4 I have tried a number of different settings, but haven't been able to identify the bottleneck. CPU and GPU both seem fine. The camera is connected using a USB 3 cable to a USB 3 port so that shouldn't necessarily be the issue either.
We don't stream in 4k, so I thought I could just set the camera to 1920x1080 - but for some reason that massively drops the quality. The camera then looks more like 720p. So the downscaling of the camera seems to not be as good. I would rather keep it at 4k because then the 1920x1080 stream looks sharp. It just has these lags which are really weird.
Basically the question is: What is my bottleneck? What is causing this slowdown and speedup? Is it the cable? My settings? The CPU/GPU?
I have attached the log file from that same video I linked. I will edit later with some more PC specs and maybe a task manager screenshot during streaming.
Any help will be greatly appreciated!
PS: The lags keep happening in the Preview WIndow even when I am not recording or streaming. Makes me think it's something with the camera connection? But I just can't be sure. We've added a fairly high-end USB card to try and eliminate that possibility, but it seems to not have done any good.