Calgary student has been studying decibel levels in hand dryers since age nine

Re:Calgary student has been studying decibel levels in hand ... by jgalentine007 on Wednesday June 26, 2019 @01:26PM (#20287095)

I didn't realize how tragically limited emissions testing is (everywhere I've lived in the last 37 years has required it.) After some cogitating, I think you're right about enforcement needing to be done on the road which is unlikely to ever happen.

[ Parent | on HN ]

Re:Calgary student has been studying decibel levels in hand ... by mark-r on Thursday June 27, 2019 @09:09AM (#20294022)

How hard would it be to make a drone that hones in on the loudest car nearby and snaps a picture of the license plate?

[ Parent | on HN ]

Re:Calgary student has been studying decibel levels in hand ... by jgalentine007 on Thursday June 27, 2019 @10:49AM (#20294895)

I was thinking something a bit more simple like a smartphone with a directional mic and opencv could work - at least for getting an idea of the scope of the problem. Put one on each side of a two lane road and you could probably get accurate results.

[ Parent | on HN ]