Post Show - NDI 3.0 Update - Intro to NDI HX w/ Andrew Cross

4,539 views · Published 22 July 2017 · 31:43 · Indexed 23 October 2026

Channel: The PTZOptics Channel · 2017 · Science & Technology

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In the post show, we answer questions from our audience all about the NewTek NDI 3.0 and features that Dr. Cross is in the process of implementing. We cover Wireless NDI, NDI Bandwidth, HDR, Mobile Devices and much more. (Below are some short quotes from the show... see would blog live.ptzoptics.com to read the entire article.)

The world at large is moving toward mobile devices using wireless networks. "We have worked hard to make NDI easy to use in the mobile world. You can use our iOS app with NDI but..." mentioned Dr. Cross, the NDI HX libraries we have available today would have made the experience even smoother on mobile devices. NDI HX allows us to use encoders inside devices which are often low power. The NDI Connect Spark firmware uses full multicast NDI even over a wireless network which means you can have as many connected devices as you want. With multicast, you can send NDI video sources to a huge number of people at once "even when you are using vMix as you are. It all works and it looks great."

General the goal from NewTek is to make NDI HX work over any wireless WAP (Wireless Access Point). The "NewTek philosophy" is all about enabling everyone to join the live video over IP revolution. "Obviously some routers are going to do better than others" but in general Dr. Cross explains NewTek would like NDI to have options to run on almost any Gigabit router in existence and he would consider it a bug if it did not work properly. 

It's important to know that NDI and NDI HX sources will have much different bandwidth uses. The "HX" in NDI HX standard for "NDI High Efficiency", which runs in the neighborhood of 10 MBps for 1080p video. The bandwidth cannot be directly compared to streaming at 10 Mbps because, for instance, NDI can run with an incredibly long run of pictures and therefore does need I-frame because NDI knows exactly when they are connecting to a stream. NDI, therefore, has control over the stream and provide much better bandwidth to quality than one would normally find with RTSP or h.264 compression.
It was great to hear NewTek will helping the world standard on PTZ controls via their IP camera control protocol. The difficulties as explained by Dr. Cross involves the various protocols used by SONY, Panasonic, PTZOptics and others. By standardizing PTZ camera controls inside the NewTek NDI, Dr. Cross will effectively be helping all NDI software users the ability to connect to cameras with a single NDI connection. This will help increase broadcast PTZ camera adoption in live streaming video production by making camera deployments easier and. We want to build a PTZ camera when you only have to plug in a single Ethernet cable into the network switch and that would provide complete audio, video and camera controls. NDI HX builds PTZ, camera control, tally, audio and video into a single real-workflow. 

New NDI 3.0 Tools

The big improves for the NDI 3.0 now includes a Studio Monitor which is the improved NDI Video Monitor. One of the new features includes overlaid PTZ controls which will also integrate options for USB joystick control. The scan converter works better and the test generator includes options for custom image integration for logos. It's been over a year's worth of work which includes a bunch of new details. The picture below shows our PTZ xbox controller we can now use with the NDI Studio Monitor.

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