新泰克推出NDI 3和NDI PTZ相机
自2015年成立以来，NewTek的 网络设备接口, 或抗利尿, has become a dominant technology for transmitting video and associated content between computer-based production stations, like graphics engines to live streaming video mixers. 使用NDI版本3.0, 今天宣布, NewTek extends the technology to cameras and converter/capture devices, where it will supplement or supplant technologies like 3G SDI and HDMI. This brings NDI a huge step closer to NewTek’s vision of an end-to-end IP-based video production workflow. 利用NDI 3中的特性.0, NewTek also announced their own NDI-based A/V converters and a NDI-based PTZ camera.
关于抗利尿
Here’s a quick primer on NDI, which we wrote about comprehensively last year in "NDI和Live title百家乐软件app最新版下载. 其核心是, NDI is a technology for delivering high-quality, low-latency video streams over a local area network. NDI was originally developed by NewTek to enable products that produced content for the TriCaster to send video and other content to the TriCaster for deployment in a live production. So rather than connecting a graphics engine and a TriCaster on the same network with HD-SDI, you could use NDI and allow that graphics engine to deliver content to any NDI-capable live production systems on the network.
In September 2015, NewTek open-sourced NDI and made it royalty free. 根据Michael Kornet的说法, NewTek’s general manager f或抗利尿 and executive vice president, 自2015年以来超过2,700 companies have downloaded the SDK and created commercial products now in the hands of more than 10 million customers.
在版本3中, NewTek added embedded NDI support for hardware devices like cameras and signal converters, which is the first step towards NDI replacing SDI and HDMI as connection standards for cameras and capture devices. 为什么? Because NDI is a more flexible and easier to deploy. 在本质上, SDI/HDMI是有线和点对点, while NDI can be cabled or wireless and is multipoint.
Imagine installing multiple cameras into a stadium, auditorium or even a meeting room. 支持HDMI和HD-SDI, 你得把电缆拉回混音器, 注意不要超过最大长度. 那些电缆只连着那个混音器, not to any other device in the facility unless you physically install a splitter and run multiple cables.
与抗利尿, so long as the camera is connected to the network, 无论是通过Wi-Fi还是以太网, any NDI compatible device on the network can access the signal. 与多播, 版本3中的另一个新特性, multiple devices can access the signal with minimum additional bandwidth hit on the network. So, 你可以在一个地方录制视频, 混合在另一个, or even mix the output from the same camera on multiple video mixers, 一个用于广播, 一个用于网络, 一个内部观看.
图1. NewTek's Connect Spark NDI-cabpable A/V converters
新的NDI-Capable A/V转换器
除了嵌入式NDI支持, version 3 adds a high-efficiency mode suitable for limited bandwidth wireless, 远程, 大规模的网络. This mode was key to the two video converters NewTek also launched under the NewTek Connect Spark 品牌, 一个HDMI转NDI(499美元), 另一个3G SDI转NDI(799美元), which both connect to the network via Wi-Fi or Ethernet cable. 除了NDI转换, 这两个设备都提供计数支持, and can record MP4 to an SD card or USB drive, with a web interface for controlling the recording. 很明显, these converters allow traditional video cameras to transmit NDI into a network, 哪里的视频可以被NDI 3访问.0-compatible live streaming video mixer, or even Skype.
NewTek的新型PTZ相机
利用版本3中的另一个新特性.0—PTZ camera support—NewTek also announced the “World’s First NDI Native Camera,” a full 3G 1080p60 PTZ camera that delivers audio, video, 理货, PTZ control and power over an Ethernet cable (图2). 这架照相机有一个U.S. retail price of $2,799 and like the video converters, will be available on August 1, 2017.
You won’t have to wait long for additional NDI-compatible cameras and switchers, 作为松下, 发射合作伙伴, promised to add NDI to its line-up of professional integrated PTZ cameras and next generation switcher systems. Other companies listed on the press release as planning to support NDI 3.0包括鸟狗, Bluefish444, 微软, NewBlueFX, 奥林匹克广播服务公司, 松下, PTZOptics, SplitmediaLabs, 播放影片, 罗斯视频, Telestream, 和vMix.
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