Tutorial: How to Up Your Live Sports Streaming Game with PTZ and NDI
PTZOptics相机 with built-in NDI support paired with the NewTek TriCaster TC1 can help you take your live-switched sports streaming work to the next level.
This video is sponsored by VideoGuys.com.
在本教程中, I’ll show you how the newest gear from NewTek and PTZOptics can take your sports production game to the next level.
At the 2017 NAB show, NewTek introduced the 4K 60P TriCaster TC1 with NDI support (下面的图1). NDI is NewTek's open-source 网work device interface protocol.
图1. NewTek TriCaster TC1
PTZOptics相机(下面的图2)支持它. What this means is that you can easily connect their cameras to the TC1 with just an ether网 cable for control and signal.
图2. PTZOptics相机
I took the TC1 and some PTZOptics相机 to a local high school football practice to test out a setup. PTZOptics offers a variety of cameras to fit your needs. Since I was shooting from a long distance, I chose PTZOptics 20x models with 20X zoom for following the action. With a power-over-ether网 switch, I could run these cameras with just one cable.
Key Features of PTZOptics Cameras for Sports Shooters
在大多数运动场上, PTZOptics相机 are permanently mounted with a wall, 天花板, 或拉式安装. 事实上, many customers choose to use an outdoor camera housing for permanently installed outdoor locations. For this demo, I'm using a trusty tripod (下面的图3).
图3. PTZOptics 20x-SDI on tripod
The fast pace of sports requires high frame rates for smooth motion. I've used NDI to set the camera frame rates to 59.94 and the shutter speeds to 1/120 (图4).
图4. Choosing settings for the PTZOptics 20x
你可以看到 图5(下图) the video quality is just as good as traditional over-the-shoulder broadcast cameras. But I can remotely control all my PTZ cams from a single location.
图5. High school football captured with the PTZOptics 20x
For a wide shot of the field and stadium, I set up the Z-cam variable lens (下面的图6).
图6. Applying variable-lens settings on the PTZOptics 20x
This little giant offers an epic 122-degree field of view (下面的图7). These 3G SDI Z-cams are ideal for close-up locations as well, such as the stadium hallway entrance from the team's locker room, or in my case the top of the announcer's booth above the crowd.
图7. The PTZOptics 20X’s 122-degree field of view is great for wide shots of a football field
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