Re:ShotSpotter: listening in on the neighborhood
by mszcz on Sunday March 03, 2024 @03:32AM
(#39579415)
This looks awesome. I’ve been wondering if it would be practical/feasible to create something similar but portable, self-contained for quieter, „local” sounds, like for instance locating a termite-like bug(s?) that’s been terrorizing my sanity for years now hiding in wooden beams.
Re:ShotSpotter: listening in on the neighborhood
by tomas789 on Sunday March 03, 2024 @07:41AM
(#39580459)
Check out “sound camera” on youtube.
Re:ShotSpotter: listening in on the neighborhood
by hcfman on Sunday March 03, 2024 @08:30AM
(#39580721)
Yeah, for short close distances sound camera of phase difference of arrival localization is interesting.
I did wonder about finding mice. I connected an ultra-sonic microphone once and saw lots of squeaks that were probably mice. I suspect the accuracy is sufficient.
https://medium.com/@kim_94237/tdoa-sound-localization-with-t...
and with manual input you can greatly improve the accuracy from what an automatic system could do due to noise and signal degradation. However it’s very time consuming. The service level response would not be met if doing this on many cases I’m sure. Meaning the default accuracy of localization is likely to be a bunch less accurate than what it could be in theory.
What is absolutely needed is to start a validation process. Start legal proceedings to force the disclosure of co-ordinates and exact event time information as recorded by each recorder so the math can be checked. My software will provide that side.