alt Hacker NewsOne day I want to build something like this, except for sound. It would be great to get a heading and distance for where a sound is coming from.
This could be both for small scale things (e.g. which part of this is squeaking?) or large scale (e.g. is that booming noise coming from the construction a few blocks away?)
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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.
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.
You 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.
ChatGPT tells me that it would take a very large array to detect distance with any accuracy
I think you'll be very interested in this awesome project
There are products in this space, eg https://www.crysound.com/
Very 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.
I've seen http://soundryx.com/
Like in this Steve Mould video, "Acoustic cameras can SEE sound" [1]?
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Fluke has made an acoustic imager for a while now. It is used for detecting leaks:
https://www.fluke.com/en-us/product/industrial-imaging/fluke...