4 ms·
Not saying it's exactly the same thing, as I don't think a video overlay was involved, but I know someone that got their PhD in this area in the 1970s and had a
by paulirwin 5y ago
Not saying it's exactly the same thing, as I don't think a video overlay was involved, but I know someone that got their PhD in this area in the 1970s and had a long career working for a U.S. military contractor doing this. The U.S. military has a significant interest in acoustic beamforming, both in the air and underwater, for obvious reasons.
- loxias 5y agoOh absolutely! Sorry, I was excited in my typing. It's not every day you see "your baby" on HN :) Everything I built was on the shoulders of giants, and lol, I didn't invent beamforming itself (of course). The problem I have trying to find the niche application is that there's not much (at least, that I could think of) where you can have high quality audio data, but where a simple camera wouldn't work. Also, full imaging (as opposed to just tracking the largest/loudest source via TDOA) is quite different math, stupendously more computationally intensive.
- R0b0t1 5y agoIndustrial automation monitoring is a major commercial application. I was going to look at https://www.minidsp.com/products/usb-audio-interface/uma-16-microphone-array https://www.minidsp.com/products/usb-audio-interface/uma-16-... for doing it. Do you know what limits of detection you could get, and on what equipment? Monitoring structural vibrations is also useful, and I think is an ongoing research area. I mention this because it's possible to sell it and research it at the same time. What about synchronized cameras in different locations?