Audio as a weapon


I would like to deviate a bit from the normal audio equipment conversation and delve into the phenomenon of the recent audio "weapon" that appears to have been deployed in Cuba upon State Department employees and now, it appears, in China. I know that very low frequency can be dreadful to listen to but anyone out there have any ideas with regard to how audio could be used as a weapon? It is not my intention to draw speculation of a political nature, I am only interested in the technical aspect of audio as a "weapon". Anyone have any thoughts?
128x128falconquest
Well constructed logic can look like poetry.

But, more importantly, I managed to park Geoff’s mouth.

Do I get some sort of Agon Kewpie Doll award for that?

teo_audio
Well constructed logic can look like poetry.

But, more importantly, I managed to park Geoff’s mouth.

Do I get some sort of Agon Kewpie Doll award for that?

>>>>Well, shut my mouth and call me Corn Pone!

What I can bestow on you is the Laughing Goat award.

From the men who stare at goats.

No goats, no glory. 🐐
@geoffkait , thank you for pointing this out but I never mentioned mass only matter. Matter observed under a microscope is inert material but mostly made up of energy and is vibrating. The denser the matter, humans and steel walls of a embassy for ex.,the  more it will vibrate. This combined with a soundwave made to do harm was the first thing I thought about when reacting to falconquest question, but I left it out for brevity.  Obviously my segue into what I posted was much broader but it was my line of reasoning pertaining to question asked.

A photon carries zero mass at rest only, but photons are never at rest, so when a photon creates energy it has a realivistic mass that is not zero and is affected by gravity. So inside a photon field the newly discovered Higgs boson particle and it's field help give photons and other particles their mass. But this only observed by causing the Higg's field to vibrate and observing the vibrations of field not the particle itself.
So, you’re saying the standard definition of matter is wrong? Is this some new physics? 😳

mat·ter
ˈmadər/Submit
noun
1.
physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.