Back in November 2016, You Tube added 2160/60P support for webcasting on You- Tube Live. Many modern professional video cameras support 4K internal recording and output, so now is a good time to explore putting together a complete 4K multicamera video switching and webcasting workflow.
In this build, my original goal was to pack as
many features into my 4K workflow as I could
within a $5,000 budget. As it turns out, I was
able to assemble a system with 2x 4K inputs for
just under $4,200 around an all-in-one video
computer-based software video switcher and
webcast encoder. Because I had some leftover
room in the budget, I decided to offer another
option to add more 4K inputs using a hardware
video switcher and building a slightly less powerful webcast encoder.
This article will discuss not just what I selected and why, but what I didn’t select and why not.
I have put a lot of thought into this workflow because I as I write this, I am actually purchasing
these components and assembling this build.
In keeping with our “4K for <$5K” goal, the only
rule I am going to set for myself in this build
is that the webcast signal needs to be a native
Video Capture Card
Any time I look at a workflow from start to finish, I like to start by determining all of the components I will require and which part of the workflow will limit my choices the most. In this case,
the most restricting component will be my video
capture card, for the sole reason that there are
only a few video capture cards that support 4K
capture on the market today.
I’ve written another article in this issue (see
page 20) that discusses how to select a video
capture card, so I am going to cut to the chase
here and present you with the two options I considered for this build: the AJA Io 4K and the
Blackmagic Design DeckLink Mini Recorder 4K.
The AJA solution costs $1,995, supports 2160/
60P, and connects to a computer via Thunderbolt
2. Going this route would restrict me to a single
capture card within this budget and force me to
By Shawn Lam