1. Before answering this question, let’s first find out what NDI® is?
NDI® stands for a proprietary set of devices and associated protocols, and is a “Network Device Interface”. The goal is to deliver high-resolution video over the network with fast, low latency. NewTek achieves his brilliant ideas. And it allows other companies to use the NDI® API to create their applications and interfaces for NDI®-enabled devices to connect. This is a fantastic idea that greatly reduces the equipment, cabling, and staffing required for video networks reduces the complexity of the video environment, and allows the average video enthusiast to experience professional-level picture quality and control.
2. What do you get when you combine PTZ cameras with NDI®?
PTZ cameras come with “pan, tilt, and zoom” capabilities, but if the camera can’t be controlled, the gimbal loses half of its effectiveness. How can you make the most of the PTZ’s capabilities and see a wider angle, clearer picture?
With the NDI® protocol, use the physical or virtual keyboard (mobile virtual interface) to control your PTZ camera, so that the lens can be rotated to where you want it to be, focused, and zoomed in. At the same time, NDI® allows for low latency transmission of high-resolution video, which means no frame drops or degradation of picture quality as the video travels from device to device. This enables virtually lag-free transmission of 4K high-resolution video. Combined with its ease of adaptation and expansion with control software, it can be used in a wide range of small to medium-sized environments, such as corporate video conferencing, online education, places of worship, and healthcare. Make the video viewer more immersive and get a better experience.
NDI® will save you the cost of purchasing additional expensive input/output switches, routers, cables, and converters. Use less hardware with a Windows or Mac computer, or even a mobile app to control your video system. Get professional-grade HD with low latency.
3. So back to our title, which is better for you, NDI® or NDI®|HX?
In reality, video transmission depends not only on the port protocol but also on your network bandwidth limitations. Just like you can’t make the water from the Great Falls of Nicaragua fall directly into the Thames, the river will swell and flood both banks. So right off the bat, NDI®|HX was created. NDI®|HX was designed specifically for low bandwidth applications, such as those on smartphones or tablets. So this brings about a difference between the two. NDI® can transmit uncompressed lossless video, while NDI®|HX requires video to be compressed into a format such as H.264 before transmission. What is the difference between the two? For the same transmission of 1080P 30Fps video, NDI® requires 100Mb/s of bandwidth while NDI®|HX requires only 20Mb/s of bandwidth.
So, the choice between NDI® and NDI®|HX still depends on the purpose of your use and equipment. If you are a professional broadcaster and need lossless HD footage for live broadcasting, then NDI® is more suitable for you. If you are a personal studio or live web master, video conferencing then NDI®|HX may be more suitable for you.
Download NDI® software, please refer to the website: https://www.newtek.com/downloads/