VIDEO INDEX:
0:00 PTZOptics cameras now support SRT
0:30 What is NDI?
0:41 What is SRT?
0:50 What's the difference between SRT and NDI?
1:03 What is a Local Area Network?
1:35 How to send IP video over the public internet
2:00 How to bring NDI video feeds into OBS, vMix, or Wirecast
2:35 How to use SRT for remote production
3:10 Comparison between NDI vs SRT
3:20 What is the bitrate of NDI?
3:40 What is the bitrate of SRT?


PTZOptics is excited to announce SRT compatibility with updated firmware for our camera line. SRT is perhaps the most efficient way to send video and audio streams around the world. But it may make some of our customers wonder, what is the difference between SRT and NDI? NDI is a popular IP video protocol that many PTZOptics camera users have already deployed.

NDI stands for Network Device Interface and the standard was developed by Newtek in 2015. SRT stands for Secure Reliable Transport and it was developed by Haivision in 2012. The main difference between SRT and NDI has to do with networking. NDI is designed primarily for use within a local area network. A local area network is a network of computers and devices that are connected together with a router. SRT on the other hand, is designed to transport video over the public internet. Therefore, NDI is the preferred technology for IP video transmission inside most buildings where the video is being transmitted to and from devices on the same local network. SRT is ideal for sending video long distances leveraging the connectivity available over the public internet.

PTZOptics cameras now support both SRT and NDI video technology. So in this video, you can learn a few of the best ways to use both technologies. NDI is a great technology to use with your PTZOptics cameras to set up a few cameras connected to the same network as your live streaming computer. Using NDI cameras, you can connect the cameras to your network with a single ethernet cable which can also power the cameras and be used for IP camera controls. In this way, you can easily bring the NDI video feeds into your live streaming software such as OBS, vMix, Wirecast or Livestream Studio.

Because PTZOptics cameras now support SRT, you may be considering ways to use SRT over the public internet. SRT would be ideal for sending a camera out into the field, beyond your local area network. In this way, you can set up a few cameras with SRT at a sports game.

A prime example of SRT, would be to send your PTZOptics camera’s video feed to a remote production area for video switching. SRT makes it possible to remotely receive video from almost anywhere in the world that has sufficient internet access.

Comparing NDI and SRT, you will notice a big difference in video bitrate. NDI for example can feature bitrates of 100200 Mbps. NDI HighEfficiency video streams are usually between 1020 Mbps. But SRT video streams are usually lower bitrate in between 28 Mbps because they leverage the internet access available over the public internet. Both video production technologies allow PTZOptics camera users to leverage IP networking in new and exciting ways.

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