Low frequency slowly oscillating, like a large engine idling in the distance or a subwoofer with an unplugged audio jack playing a low drone. The source does not appear external as earplugs …
both described a low hum · 11 km away
Ireland, Dublin · 2018-09-04 · from the WORLDHUMMAP archive
Deep Vibrating sound repeating its noise sequence over and over. Putting it in more visual terms: it's like a giant metallic washing machine turning. (Yes I've checked the washing machine and it's off and also I have no imediate neighbours-detached home-) Extremly loud when lying down and still audible even when trying to distract myself with videos or by reading a book. Dissapears when getting up from my bed. Started at around 3.15 am. 30 minutes later it started fading but the speed of the sequence has increased dramatically. Eeeextremly annoying!
What they reported
First noticed: 2018
Pitch: 380 hertz -sine-
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing);Headache;Nausea;Sense of vibration
What stood out: a low hum
Low frequency slowly oscillating, like a large engine idling in the distance or a subwoofer with an unplugged audio jack playing a low drone. The source does not appear external as earplugs …
both described a low hum · 11 km away
A low rumbling sound such as machinery running some distance away. I grew up in the Pacific Northwest in Oregon, both in Portland and Central Oregon. I never heard the hum until moving to Ir…
both described a low hum · 33 km away
low frequency drone hum, idling diesel engine at a distance, slight resonance, brief reduction of intensity at random intervals (1 to 5 secs) My experiential opinion is this: The 'sound' is…
both described a low hum · 177 km away
Low freq hum sound more sever at night time, like a drone above building, prevents sleep, not everyone is sensitive to it, driving me crazy at night, can be heard during the day, if you know…
both described a low hum · 200 km away
Like a base guitar that's too close to the speaker ,a very low rumble I seem to get strong vibrations, (not good vibrations!) before the hum gets going after being off. These can last for a …
both described a low hum · 232 km away
Can go from a low humming noise to very loud humming noise/vibration in both ears which can be very hard to drown out. It's like a pulsating hum that is not a flat noise so to speak, like i…
both described a low hum · 146 km away
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This is a Hum report from Dr Glen MacPherson's World Hum Map, an open, worldwide record of people who hear an unexplained low-frequency hum. Reproduced with permission and with thanks; the project is at thehum.info. We remove anything on request. Location shown is approximate.