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Running Vmix on a an HP Z2 G5 SFF, Xeon W-1250/Quadro P620, 16gb ram, 2TB SSD, doing live video production with 2 sdi inputs via blackmagic input card.
Earlier this year we switched from 720 to 1080 upload stream. Since then I am starting to see a slight jitter, or frame skip, in the video approximately every 15 seconds. I can watch the event online and see the jitter/skip clearly on the event replay.
We use instant replay for both cameras and I am wondering if we are taxing the system since we started uploading stream at 1080. I am considering upgrading the cpu, gpu, or both to resolve the problem.
Any ideas would be greatly appreciated. Thanks in advance.
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@ HMS Video
Both if possible, but certainly upgrading the GPU will be beneficial, the Quadro P620 only has 512 CUDA cores which is less than half of what the GTX 1060 has (1280.
Ice
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Have you monitored CPU and GPU utilization. It could give you a hint where the bottleneck is. WIth notebooks it might be a challenge to upgrade the GPU. In most cases it results in a new system. If the BMD solution offers an output as well you might want to look into using vMix as a mixer and do the encoding externally with an appliance.
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Originally Posted by: HMS Video  Running Vmix on a an HP Z2 G5 SFF, Xeon W-1250/Quadro P620, 16gb ram, 2TB SSD, doing live video production with 2 sdi inputs via blackmagic input card.
Earlier this year we switched from 720 to 1080 upload stream. Since then I am starting to see a slight jitter, or frame skip, in the video approximately every 15 seconds. I can watch the event online and see the jitter/skip clearly on the event replay.
We use instant replay for both cameras and I am wondering if we are taxing the system since we started uploading stream at 1080. I am considering upgrading the cpu, gpu, or both to resolve the problem.
Any ideas would be greatly appreciated. Thanks in advance. I went back and watched the online replay of my last event and then compared it to the instant replay video that I save and archive. The instant replay doesn’t have any of the graphics or overlays, just raw footage. Interesting discovery, the jitter/skip occurs on the finished product online replay but not on the instant replay archive. I’m going to pop the cover off the computer and see what kind of space I am working with as far as upgrading.
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