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Jittery instant replays
Rank: Newbie
Groups: Registered
Joined: 5/5/2023(UTC) Posts: 1 Location: Leeds
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We have a 4 camera replay set up, all at 1080p 50, and the replays quite often start to jump on our rig. Specs: 12th Gen Intel® Core™ i7-12700 (25 MB cache, 12 cores, 20 threads, 2.10 GHz to 4.90 GHz Turbo) 32 GB, 2 x 16 GB, DDR5, 4400 MHz NVIDIA® GeForce RTX™ 3070, 8 GB GDDR6, LHR 1TB M.2 PCIe NVMe SSD
I since bought a WD_Black SN750 4TB SSD just for replays thinking this would fix the issue, but it still persists.
Any fixes or workarounds would be great. I read another post about potentially turning off recording whilst we play a replay. This isn't ideal, but would be a better solution if I could get some advice on how to implement this?
Thanks.
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Rank: Newbie
Groups: Registered
Joined: 7/31/2022(UTC) Posts: 3 Location: Victoria
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Following, having the same issue.
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Rank: Advanced Member
Groups: Registered
Joined: 3/7/2012(UTC) Posts: 2,624 Location: Canada Thanks: 33 times Was thanked: 504 time(s) in 473 post(s)
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@ benwick I suspect that your CPU is too slow and does not meet the minimum system specs for vMix 4 camera Instant Replay: https://www.vmix.com/hel.../SystemRequirements.htmlIt is the major reason why laptops are not recommended for use with vMix Instant Replay. Ice
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Rank: Advanced Member
Groups: Registered
Joined: 10/7/2015(UTC) Posts: 635 Location: California
Thanks: 122 times Was thanked: 123 time(s) in 115 post(s)
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@benwick
This is a desktop rig, correct? If so what happens when you limit Instant Replay to only 2 cameras? Same problem?
Perhaps there is an issue with the Intel UHD Graphics 770 built into the CPU.
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Rank: Newbie
Groups: Registered
Joined: 2/24/2020(UTC) Posts: 1 Location: Novi
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Same issue here.
I have recreated this with a single NDI camera. Sometimes it stops, starts, stops, starts. Sometimes it goes fine.. then speeds up at the end.
Asus Rog G17 with AMD Ryzen 9 and Nvidia 3060 GPU
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Rank: Newbie
Groups: Registered
Joined: 7/31/2023(UTC) Posts: 2
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Same problem over here when the inputs of the Instant Replay are SRT and having all the specs required.
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Rank: Newbie
Groups: Registered
Joined: 7/31/2022(UTC) Posts: 3 Location: Victoria
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I have found an issue where Windows defender is scanning the USB ports for virus' and slows the band width down to a crawl. This may be the same for LAN but I am not sure. My tech told me to download malware bytes and use the free version and this will uninstall defender. In testing it has made a huge difference. I will try it in production tomorrow and get back with the results. 90% Better in production.
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