Pretty cool, here is a live demonstration of their 1024-microphone camera
https://youtu.be/dJ4NKq7trTA?t=210
There was a videoreport on this startup last year by Tweakers.net: https://tweakers.net/video/10249/een-camera-die-geluid-visua...
(it's in Dutch)
It turns out that noisy machines are often mostly noisy because a relatively small number of parts are too flexible, not screwed on tightly enough, and so on. Track that down and you know where your low-hanging fruit is. A daredevil cam is exactly what you need for tracking that down.
Their site is a tad unimpressive sadly, but their tech is very cool: http://www.sorama.eu