NDI Bandwidth Considerations

[@tperkins073]

Nice summary, Paul! Thx for this! this video I think is going to be a big destination for people with questions about bandwidth. Wondering about color bit-depth and alpha channel support in full NDI vs. NDI-HX? A lot of people rely on the alpha channel in full NDI to send keyed supers for broadcast ala game scores, keyed lyrics for worship, etc., from one system to another. Perhaps in a future episode?

[@StreamGeeks]

Hi Todd, yes that's a very good idea. I know that bandwidth should change based on the content. But you are right that NDI-HX doesn't support alpha channel. So these topics are ideal for an upcoming video. Thanks for the idea!

[@MrXalabarder]

Thanks very very much for this fantastic course and for the guide! You make available and easy a complex knowledge. Its been super clarifying.

[@YourHaloCreations]

Hey, I'm a bit confused... isn't the computer receiving NDI a separate bandwidth accumulation from what the same computer is sending using NDI? Or, if you're on a gigabit switch, you have 1 Gb total to send/receive?

[@PoxyBear]

In the network settings the Link Speed is shown. When you Receive/Transmit 1000/1000 you are getting and sending 1Gbps = 1 Gigabit per second of internet speed. This is excellent and a Cat5e ethernet cable using its maximum speed.

[@MikeGrayeb]

Great video -- and series -- thanks Paul!! Re: your comment about 125mbps iOS NDI camera: Is that different from the NDI-HX app for iOS? Is there a full NDI iOS camera app? Thanks.

[@StreamGeeks]

That is a good point. I believe the new NDI HX app works much better and reduces the bandwidth but I need to test.

[@StreamingMedanSaja]

Thanks for this summary Paul.. is it any NDI monitor for Android phone?

[@motomululive4731]

Great video with very useful information. What about the bandwidth usage if I use Zoom Rooms and pin 3 participants on Zoom Rooms through NDI, how much bandwidth are required for the laptop/pc that receive the 3 "pinned" NDI on Zoom Rooms and vice versa for laptop that sends the 3 pinned NDI participants?

[@StreamGeeks]

It would be roughly 150 Mbps each video stream. Maybe a little less. We will have a video testing that at some point

[@cocolatte3076]

please help, my gaming pc get high ping when i set ndi obs bandwith to highest on the streaming pc, what should i do?

[@AdmV0rl0n]

I really like NDI 5 so far. But I ... in terms of gut feel, think that they can do better on compression and bandwidth, and if they are to become the killer in the market - needs more work..

[@StreamGeeks]

I agree with you but remember... More compression = less quality in general. I think they are moving pretty quickly with the introduction of NDI|HX only a few years ago. Now NDI Bridge allows you to transcode any NDI source with a decent amount of h.264 and h.265 options.

[@AdmV0rl0n]

@@StreamGeeks I concede to not knowing enough here, but - and this is probably a lack of knowledge on my part - there should be options to trascode all workloads and probably to best available on hardware (so if you have late era Nvidia, H265..). Compression loss does happen, but good modern codecs do amazing work..

[@StreamGeeks]

AdmV0rl0n - watch our latest video about NDI Bridge and let me know what you think

[@saviourukpong]

Amazing video.

[@StreamGeeks]

Thanks!

[@JohanBrandell]

Err, that is not how network switches work