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A comment on The Daredevil Camera. Parent comment

Re:The Daredevil Camera by yathern on Wednesday June 29, 2016 @06:30PM (#12005308)
No. SONAR sends out an ultrasonic ping and times the response of its echo to get a distance.

This project is similar in that it involves visualization from audio, but apart from that, it's quite difference. This is the ability to see a sound. To derive the positions of arbitrary sounds in a viewing plane, and render it like you would a picture or video.

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Re:The Daredevil Camera by willvarfar on Wednesday June 29, 2016 @06:53PM (#12005411)
Yes. Passive sonar only listens to the noise. Passive sonar systems are often arrays too. So the analogy holds quite well from a distance ;)

https://en.wikipedia.org/wiki/Sonar#Passive_sonar

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Re:The Daredevil Camera by Qworg on Wednesday June 29, 2016 @06:49PM (#12005389)
He's still driving the scene - illuminating it, if you would.
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