People said they could feel their eyes vibrating, I wonder how effective headphones would actually be.
What’s scary to think is that whatever it is, it’s probably flirting with the threshold of very serious harm on a large scale. Imagine all the literal skeletons in the development process for this.
Whole thing seemed more of a weapons test/advert than an actual interest in crowd dispersal too. That wasn’t an unruly crowd they used it on.
If vibrating eyes is true, the noise is probably in the 30-80 Hz range, somewhere like an idling truck engine or a higher end subwoofer.
That type of noise is rarely heard by ears, but felt as vibrations in the body, and is mostly registered as physical discomfort and stress.
At volume it would probably be enough to be very uncomfortable, but not necessarily immediately dangerous, it’s probably on par with working in a large engine room.
Hearing protection will help filter any accompanying noise, and should help keeping your head clear even under the added stress. It will do little to lessen the low frequencies.
Low frequency noise has to be reflected through considerable mass and/or stiffness. Think walls or three pane windows, but also human bodies. Maybe forming ranks and rotating members could be a useful tactic?
People said they could feel their eyes vibrating, I wonder how effective headphones would actually be.
What’s scary to think is that whatever it is, it’s probably flirting with the threshold of very serious harm on a large scale. Imagine all the literal skeletons in the development process for this.
Whole thing seemed more of a weapons test/advert than an actual interest in crowd dispersal too. That wasn’t an unruly crowd they used it on.
If vibrating eyes is true, the noise is probably in the 30-80 Hz range, somewhere like an idling truck engine or a higher end subwoofer.
That type of noise is rarely heard by ears, but felt as vibrations in the body, and is mostly registered as physical discomfort and stress. At volume it would probably be enough to be very uncomfortable, but not necessarily immediately dangerous, it’s probably on par with working in a large engine room.
Hearing protection will help filter any accompanying noise, and should help keeping your head clear even under the added stress. It will do little to lessen the low frequencies.
Low frequency noise has to be reflected through considerable mass and/or stiffness. Think walls or three pane windows, but also human bodies. Maybe forming ranks and rotating members could be a useful tactic?
Absolutely no help at all.