vMix Forums
»
General
»
NDI
»
Go NDI or stick with SDI when updating to vMix?
Rank: Advanced Member
Groups: Registered
Joined: 12/8/2022(UTC) Posts: 94  Thanks: 26 times
Was thanked: 1 time(s) in 1 post(s)
|
Hi!
We´re looking into replacing an SDI based mixing system with vMix to get a more integrated setup, mostly when it comes to CG graphics and replay funktions. We want fewer boxes in the rack and fewer subsystems.
We already have a robust setup with SDI signals coming in from cameras, recievers etc.
Today we have 5 SDI signals that has to be handled in the new setup.
If and when doing the transfer to vMix, would you recommend sticking with the SDI setup (which means getting an SDI capture card like a DeckLink Quad and probably more wiring) or switching to NDI from the cameras and systems in our setup that supports NDI?
We prioritize stability and robustness in our system. So what is generally a more safe way with vmix, SDI or NDI?
Thanks in advance for input regarding this!
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 4/23/2017(UTC) Posts: 1,367  Location: Germany Thanks: 3 times
Was thanked: 183 time(s) in 164 post(s)
|
My eperience: NDI works, but you need to pay attention to what gear you use. With NDI you need a very good understanding of the IP domain, networks, VLANs, routing and so on. A few examples: Canon N700. 100% flawless over NDI, not a single issue. Birddog. So or so. I just did a concert with 3x P200. 2 were fine from the get go. One I needed to reboot 3 times to get it going reliable. Netgear 43xx AV line. Very good. 10G. If you start from scratch go 10G only. The more you get into NDI the more signals will be added and a 1G link is quickly exhausted. Mikrotik. I love the flexibility and detail. But for some it might be a nightmare. They have good 10G/100G/400G gear. What they lack is good PoE options. I use it as router. Kiloview N60/P2/P3 robust. I like the N60s as they are transceivers, have the NDI bridge implemented and are flexible. P2/P3 for wireless/remote with bonding. Central device management. I hope that helps a bit.
|
 1 user thanked mavik for this useful post.
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 3/7/2012(UTC) Posts: 2,663 Location: Canada Thanks: 33 times
Was thanked: 510 time(s) in 479 post(s)
|
@ TL68
SDI is going to be far more stable and reliable with vMix, not to mention less demanding on system resources.
Ice
|
1 user thanked IceStream for this useful post.
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 12/24/2021(UTC) Posts: 733  Location: athens Thanks: 166 times
Was thanked: 96 time(s) in 92 post(s)
|
It is also has to do with cost and complexity. An sdi card like bmd quad 2 costs less than 1k and with having already sdi cameras and cables, the transmission from hw mixer to vMix is easy. Install the card in the proper pc and ready to fit the existed sdi cables.
Also at any moment you can use vmix to do sdi to ndi or to the new vmix 29 omt protocol.And this is a new "player" in the market that may change many things around AV equipment.
Personally for now i would go for sdi capture card system that is confirmed that work ok into vmix. And wait to see in the future what will happen in OMT side in equipment cause is free and open source (and designed by vmix team), so in some things it would be better for equipment that will be for use in vmix.
|
1 user thanked nikosman88 for this useful post.
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 2/7/2024(UTC) Posts: 144  Thanks: 10 times
Was thanked: 6 time(s) in 5 post(s)
|
Something we are experimenting with is using a hardware encoder, but letting vMix do the decoding. Originally we went: Encoder > Decoder > Decklink > vMix. But since testing with the encoder sending directly to vMix we have removed a full second of latency and are down to around 500ms. I don't know for sure, but I suspect the Decklink card or Decoder + Decklink is putting in a lot of latency.
We use decent high end gaming rigs, so haven't seen any issues with the PCs doing the decoding.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 10/20/2023(UTC) Posts: 90  Thanks: 2 times
Was thanked: 6 time(s) in 6 post(s)
|
What system configuration? MB CPU GPU
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 2/7/2024(UTC) Posts: 144 Thanks: 10 times
Was thanked: 6 time(s) in 5 post(s)
|
Originally Posted by: Kayo33  What system configuration? MB CPU GPU NZXT z790, i9 14900KF, and RTX 4070ti Super
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 10/20/2023(UTC) Posts: 90 Thanks: 2 times
Was thanked: 6 time(s) in 6 post(s)
|
With the NZXT Z790, the DeckLink card isn't on a CPU slot as recommended by vmix. This may explain the latency. i9-14900kf = 20 PCIe CPU lanes distributed across the NZXT Z790 PCIe x16_1 = x16 = GPU M2_1 = x4 = SSD page 8 : https://cdn-g.nzxt.com/d...tal-manual_231129-v5.pdfYou need a card that can distribute the PCIe CPU lanes into: PCIe 1 = x8 = GPU PCIe 2 = x8 = DeckLink card M2_1 = x4 = SSD preference sdi for system
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 2/7/2024(UTC) Posts: 144 Thanks: 10 times
Was thanked: 6 time(s) in 5 post(s)
|
Originally Posted by: Kayo33 With the NZXT Z790, the DeckLink card isn't on a CPU slot as recommended by vmix. This may explain the latency. i9-14900kf = 20 PCIe CPU lanes distributed across the NZXT Z790 PCIe x16_1 = x16 = GPU M2_1 = x4 = SSD page 8 : https://cdn-g.nzxt.com/d...tal-manual_231129-v5.pdfYou need a card that can distribute the PCIe CPU lanes into: PCIe 1 = x8 = GPU PCIe 2 = x8 = DeckLink card M2_1 = x4 = SSD preference sdi for system Ah ok, I think that makes sense to me, thanks
|
|
|
|
|
|
Rank: Advanced Member
Groups: Registered
Joined: 11/14/2012(UTC) Posts: 285 Location: Finland Thanks: 163 times
Was thanked: 15 time(s) in 13 post(s)
|
Originally Posted by: TL68 Hi!
We´re looking into replacing an SDI based mixing system with vMix to get a more integrated setup, mostly when it comes to CG graphics and replay funktions. We want fewer boxes in the rack and fewer subsystems.
We already have a robust setup with SDI signals coming in from cameras, recievers etc.
Today we have 5 SDI signals that has to be handled in the new setup.
If and when doing the transfer to vMix, would you recommend sticking with the SDI setup (which means getting an SDI capture card like a DeckLink Quad and probably more wiring) or switching to NDI from the cameras and systems in our setup that supports NDI?
We prioritize stability and robustness in our system. So what is generally a more safe way with vmix, SDI or NDI?
NDI has all kind of issues. Definately stick with SDI if possible. Would't do this kind of live production relaying on NDI: https://youtu.be/aROLBwskaZQ?t=2271
|
|
|
|
|
|
vMix Forums
»
General
»
NDI
»
Go NDI or stick with SDI when updating to vMix?
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
Important Information:
The vMix Forums uses cookies. By continuing to browse this site, you are agreeing to our use of cookies.
More Details
Close
