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Ultimate PC for Vmix with 20-30 input
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benten2411  
#1 Posted : Friday, June 30, 2023 10:50:04 PM(UTC)
benten2411

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I'm looking to build a vmix PC with about 30 input sdi with w790 mainboard, Intel Xeon W3400/2400 and GPU Quadro A5000. I don't know if vmix has support to optimize for that hardware?

Or can someone suggest me how to build a PC vmix around 24-30 inputs (x3-4 Decklink Quad)

W790 WS
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paco3346  
#2 Posted : Saturday, July 1, 2023 12:30:01 AM(UTC)
paco3346

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You won't like this answer (and as a vMix enthusiast I hate to say it) but that many hardware inputs isn't well suited for vMix.

And it's not vMix's fault either- general purpose PC hardware just doesn't fit this use case well. I run a 16 input machine with an A6000 and it chokes sometimes. (This is due largely to my build being a dual socket so NUMA / the CPU interconnect fabric is being largely tapped out.)

Every few years Netflix releases slides about how they improve their architecture to work better on multi CPU machines. It's worth a glance:

https://papers.freebsd.o...eebsd-400gbps-slides.pdf

If you were to try and do it, you've picked the right CPU (super high PCIe lane count).
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kuuminsh  
#3 Posted : Tuesday, August 8, 2023 9:14:37 PM(UTC)
kuuminsh

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Maybe Blackmagic Videohub can be used in your case?
https://www.blackmagicde...ducts/blackmagicvideohub
It's hard for me to imagine a scenario where 30 SDI inputs would be needed in vMix for live streaming :)
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