If this is true there's a way we can block the effects...
> In 1962, Allan H. Frey discovered that the microwave auditory effect, i.e., the reception of the induced sounds by radio-frequency electromagnetic signals heard as clicks and buzzes, can be blocked by a patch of wire mesh (rather than foil) placed above the temporal lobe.
White matter is the deep part of the brain. Microwaves wouldn't penetrate more than a couple cm.
Personally I think something much more benign is probably the answer. Maybe someone introduced drugs into their food/water? Sometimes a noise is just a noise.
I don't know, if this is some kind of sophisticated multiple-beam system using constructive interference (https://xkcd.com/1922/), it might have more penetrative ability than you'd assume.
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There is an actual recording of these sounds. Microwaves inducing sounds into a humans perception and at the same time inducing it in recording equipment does not seem plausible.
There is also an easy way to test whether the sound is actual sound conducted in air or the effect of microwave exposure: ear plugs.
If its a high frequency wave, then you would "hear" it with the skin and other tissue on your head rather than your actual ears. Earplugs wouldnt really help.
How it works: you can hear a high frequency wave if its modulated at audible frequency. If it's switched on and off at a relatively low frequency, you can sense the presence and absence of the high-frequency vibrations. Those waves are poorly absorbed from the air, but once they make it into the body they are transmitted much more easily by tissues besides bone. So your ears are not much better than the rest of your skin, which acts like a funnel for sound, diverting it to your cochlea.
There's an actual recording of signals inducted in wires - either from soundwaves moving a magnet in a field (sound picked up by a mic), or inducted by in the wires by electromagnetic radiation, surely?
I agree it might be unlikely that one signal might induce sound in a human that sounds like the sound a recorder might record - but I don't know. I just know that it's trivial for radiation to fool sound equipment (eg: cell phone signal too close to a speaker/mic/amplifier).
However, if this is a sophisticated weapon, there might be two signals: high power that target humans, lower power that target recording equipment?
Exactly what I was thinking of too. The company that created MEDUSA (WaveBand Corp) was awarded a DoD grant in 2005 for a 3m^2 "Millimeter Wave Profiling Deployable Dosimeter".
> In 1962, Allan H. Frey discovered that the microwave auditory effect, i.e., the reception of the induced sounds by radio-frequency electromagnetic signals heard as clicks and buzzes, can be blocked by a patch of wire mesh (rather than foil) placed above the temporal lobe.
I'm ready http://static.tvtropes.org/pmwiki/pub/images/weirdalfoil_232...