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NewTek NDI Camera app
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OrcaMaster  
#1 Posted : Thursday, May 11, 2017 9:06:08 PM(UTC)
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Has anyone successfully tested or deployed the NewTek Camera app as a networked video source for vMix?
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DWAM  
#2 Posted : Friday, May 12, 2017 2:47:16 AM(UTC)
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Yes and I'm not the only one... There are many topics addressing this. Did you search the forum before posting?
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OrcaMaster  
#3 Posted : Friday, May 12, 2017 2:13:06 PM(UTC)
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Yes.

In my testing the video quality of the Camera app (iOS version), as displayed in vMix, isn't acceptable. Frame arrival timing is all over the map according to vMix statistics. The receive bit rate for the vMix PC is high (~24 Mbps average), but well under network capacity. CPU load is < 10%.

I wondered if others had a similar experience and, if so, is there a practical fix?
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DWAM  
#4 Posted : Friday, May 12, 2017 2:28:16 PM(UTC)
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You need a very strong Wifi AP, preferably 5Ghz, at least 802.11n or 802.11ac with MIMO.
When you have a good wireless infrastructure, image quality is very good, no frame drop, no audio/video desync...
I could experiment very successfully with multiple devices simultaneously.
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kane  
#5 Posted : Friday, May 12, 2017 6:53:40 PM(UTC)
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Other things that might help in some cases.

- Use 40MHz bandwidth instead of 20MHz.
- If using WPA2 encryption make sure it is AES only (not TKIP).
- Use a WiFi testing tool to see what channels are being used in your spectrum.

NDICam is pushing a lot of data, you need a good WiFi interface that can keep up.

There is also a hardware NDI Ethernet you can get for iOS device to turn them into wired devices which allows you to avoid all of the issues that come with wireless technology.

Kane Peterson
NewTek
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OrcaMaster  
#6 Posted : Friday, May 12, 2017 7:19:26 PM(UTC)
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Yes, thanks about the networking stuff.

The bandwidth required is breath-taking: ~35 Mbps for a quality stream.

Tethering an iOS device defeats mobility so that won't work.
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AlanZ  
#7 Posted : Friday, May 12, 2017 7:40:56 PM(UTC)
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Why is 35Mbps breathtaking (unless you have a very busy network)?
On a gigabit 802.11.ac network and an iPhone 6 or 7, it barely makes a dent in the bandwidth.
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DWAM  
#8 Posted : Friday, May 12, 2017 7:52:08 PM(UTC)
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35 Mbps is half potential quality from such a device. A 720p25/30 NDI requires 50/60 Mbits.
NDi is designed for very high quality hence the bandwidth and network infrastructure requirements.
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AlanZ  
#9 Posted : Friday, May 12, 2017 8:14:18 PM(UTC)
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Right, and if I recall correctly an iPhone 6 can transfer data at 300Mbps on a 80.211.ac network.
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OrcaMaster  
#10 Posted : Friday, May 12, 2017 8:28:56 PM(UTC)
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The same scene slung across the network with Airplay and Apple's Camera app uses about 9 Mbps. 30+ Mbps seemed a bit over the top. The bandwidth is there to be used, of course, so no issue unless the bandwidth is shared with others. Then 30+ Mbps could pose a problem. This isn't a professional deployment so there's no option of having a locked down wireless network.
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DWAM  
#11 Posted : Saturday, May 13, 2017 12:51:11 AM(UTC)
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If it was the same thing, should we be having this conversation?
NDI is a professional streaming protocol, hence the professional network requirements. AirPlay is a tool for consumer market.
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thanks 1 user thanked DWAM for this useful post.
doggy on 5/13/2017(UTC)
OrcaMaster  
#12 Posted : Saturday, May 13, 2017 4:01:21 PM(UTC)
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If Airplay were a native vMix input, it would be a acceptable option.

Agreed. NDI in its current form doesn't seem suitable for consumer wireless deployment.
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r@wisla  
#13 Posted : Saturday, June 17, 2017 6:18:17 AM(UTC)
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Kane, why don't Newtek make ndi cam trial version (with watermark or sth...) that we could test before buying, to check our phones and wifi infrastructure works fine with the app?
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Curt M  
#14 Posted : Wednesday, August 2, 2017 6:45:59 PM(UTC)
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Picked up NDI Camera two weeks ago. Tried it the week before last at home, using two iPads (4 Retina/A9X Mini) and sitting in the "studio" looked kinda cool.

Went to my scheduled event and had someone take the 4 around inside. Was a bit aggressive on movement and the camera in the iPad wasn't keeping up. Last night, put the A9X in the mix and told the conscripted operator to move and let the camera settle in and don't move it too quickly. It was a chef cook off format and actully I'm (and they) were pleased with the "walk around" camera capability. The camera person was pretty moderate on working the scenes, which also helped.

One thing I like over this function in vMix Call in is that the walk around operator is cued in on when you have them in the program window, without having the figure another way to communicate with them.

Lessons: Use a modern i Device for best results.
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