The army has one of these for sniper triangulation, and Boeing made a civilian version for optimizing sound dampening on the 787. I don’t know if they kept doing that on subsequent planes but I would expect so given how enthusiastic they were about being able to apply the weight budget to greater effect.
replyYou need really high clock rate sensing to differentiate the arrival time for sound from microphone arrays where they are all less than a nanosecond separated from each other.
Fluke has made an acoustic imager for a while now. It is used for detecting leaks:
replyhttps://www.fluke.com/en-us/product/industrial-imaging/fluke...
There are a few knockoff options too, which are not quite as nicely calibrated, but get the job done for much less than Fluke-level prices. Like the FOTRIC TD2.
replyI think a few people have made homebrew versions too, like this one mentioned on HN: https://news.ycombinator.com/item?id=45137584
Not sure if you've heard of them, but they're starting to come to market with this exact thing aside from distance detection and more on the "which part is squeaking" side.
replyI think you'll be very interested in this awesome project
replyThere are products in this space, eg https://www.crysound.com/
replyVery cool stuff, can be used for drone detection at up to 200m. Accuracy is not super good, unless you make mic spacing a bit large.
Like in this Steve Mould video, "Acoustic cameras can SEE sound" [1]?
replyI've seen http://soundryx.com/
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