Annoying low hum sound only 2% are hearing

With the physical Universe being made up of vibrating atomic particles … it’s unsurprising harmonic resonances will occur … and at a sub-bass level too.

High winds blowing thru any tube, canyon or crevice …. even a small hole in your double glazing … can generate weird noises of different frequencies.

I remember a UK rock star years back who talked about sending deep rumbles of sub bass frequencies for miles across the local countryside. … Can’t find any reference to this on the Internet after a cursory search … anybody else remember this?

The Hum from a UK perspective….

www.theguardian.com/books/2021/jul/07/the-hum-mystery-noise-says-a-lot-about-modern-life

… here New Scientist tackles the issue …

www.newscientist.com/article/2373236-mysterious-sounds-in-stratosphere-cant-be-traced-to-any-known-source/

 It’s simple it’s Starmer ,but I think it’s more than 2% annoyed

If the volume decreases significantly or disappears totally when you apply foam earplugs … I’m guessing you can quickly ascertain it’s external … and not tinnitus-related?

… with every ear being genetically different in design … it appears maybe this measure of 20Hz could be an average … and a small exceptional percentage of people might have a much lower frequency awareness?
The sickness could arise in the form of vibrations in the skull creating migraines, … or vibration harmonics in the stomach causing IBS and stomach upsets.

In my other thread on the effects of 2,3,4 and now 5G increased mobile mast emissions affecting health in some people … maybe certain frequencies also have the effect like microwaves on tin foil(ignition and burning) … so if super fine metallic pollutants (Al and Ba for instance)have been ingested or injected into a human or animal/ creature or plants too … where they can easily pass through the cell walls - especially very important powerhouse cells like mitochondria … those affected could be in serious trouble going near any harmonic frequency that generates heat and kills cells from the inside.

Picking up on your last point … inter-stellar sources … I wonder if these mysterious frequencies might arise when UFO’s drop in and out of our airspaces in certain areas of the World?(witnesses often record low frequency buzzing electrical phenomena and people note the bent corn stalks in crop circle designs show nodes where internal super heating has occurred) …

… maybe taking short cuts through portals or Dark Matter requires the traveller to employ certain frequencies that cut through Matter like a knife through butter?

Wind turbines are known to create long range infrasonic vibrations. They travel large distances through the earth. The harmonics of these would possibly be audible in some circumstances.

Effect of Ageing on Hearing Thresholds in the Low Frequency Region

journals.sagepub.com/doi/pdf/10.1260/026309208785844095#:~:text=These%20results%20suggest%20that%20older,a%20low%20level%20LF%20noise.

"These results suggest that older people retain good hearing sensitivity in the LF region, in contrast to their often-degraded sensitivity at higher frequencies. Therefore, in LF noise evaluation, we should carefully regard the possibility that older listeners can perceive a low level LF noise."

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Low frequency traffic noise for some older people can be so loud that it drowns out normal speech frequencies.

There is a form of "deafness" that people begin to experience in their 50s in which LF environmental (traffic) noise can so overwhelm the hearing that one can't take in a word of what is bring said. It's as if the person speaking is not making any sounds as they speak.

Ok I have a question

In the video at the very start of this thread, a man says 'listen closely, do you hear this sound ? And holds a finger up'

Is the sound actually playing then ?

I ask because for about twenty, maybe thirty years I gave had mild tinnitus rising and falling with my heartbeat, and this has got worse since my mini stroke, to the point it impairs my hearing, but the first time I played that video I heard nothing but had a distinctly unpleasant nauseating sensation in my ribcage which ceased as soon as I pointed the phone away from me.

Coincidence ? Dunno

a good fifty five years ago maybe even more I first read of the lethality of an experiment carried out in Paris with an air compressor and a cannon, which pretty much partially liquidised the internal organs of the unfortunate individual who had discovered infrasonics.

As a teenager I built an instrument I would describe as a partial Moog synthesiser from component chips and circuits, and in it's lower frequencies I'd was able to create the same deeply uncomfortable sensations between about 50 and 250Hz

I chose not to amplify them, being attached to my liver lobes, but it did give me a finer appreciation of Kate Bush's 'Experiment 4' I think the track is called.....