Low frequency hum, always same frequency, I'd estimate around 50hz (at least my perception). I only hear it at/in my home, if I'm at another location, I don't think I've ever heard of it. …
both described a low hum
USA, Inver Grove Heights · 2018-02-10 · from the WORLDHUMMAP archive
It's a constant hum with a vibration. Sounds like a massive deisel engine idling down the street. I've heard this hum for over twenty-five years but the reason I'm reaching out now is because something has changed and it's becoming harder to ignore as it's affecting my health. I wake up in the middle of the night and my whole body is vibrating to it. I've taken to sleeping on my couch because there's more ambient noise to help mask it.
What they reported
First noticed: 2017
Pitch: 170Hz masks it completely.
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Insomnia, Sense of vibration
Changes with weather: Not that I've noticed
What stood out: a low hum
Low frequency hum, always same frequency, I'd estimate around 50hz (at least my perception). I only hear it at/in my home, if I'm at another location, I don't think I've ever heard of it. …
both described a low hum
Low pitch hum estimating around 50-100hz The sound is not a perfect pure tone, and has slight volume changes, it sounds similar to the hum of a fan motor. I have driven around in an attempt …
both described a low hum
A low frequency Hum sound that fluctuates subtly but for the most part is steady The Hum is a low frequency and droning sound and it kind of fluctuates in tone.. almost like an idling diesel…
both described a low hum
Very low-pitched continuous drone. Pitch rises and falls slightly but can remain steady at times. Inaudible to my wife. Reminiscent of the hum from a large transformer/sub station but there …
both described a low hum
Low, soft rumble - as if a large truck were idling in the distance - it varies, but not rhythmically - I can almost "feel" the vibrations. Most predominantly at night, in the bedroom on the…
both described a low hum
Low hum, sometimes pulsating, sometimes not. It is very loud. It sounds like a propeller airplane way off in the distance, but it doesn├»┬┐┬╜t go away. Or an 18-wheeler on a busy freeway, …
both described a low hum
A disturbing, vibrating, continual rumbling sound that gets louder at night when other sounds are reduced. The noise/vibration/frequency prevents me from sleeping many nights or from ever sl…
the accounts read alike, found by meaning rather than by shared details
it is like an uneven engine, it doesn't seem to be the AC that is an even hum for example but more like an idling car engine but it feels like coming from the walls. It is not a "sound" but …
the accounts read alike, found by meaning rather than by shared details
A Low hum that I can feel vibrating in my ears. An exterior feel around my head and ears. It's a slow pulsating deep hum that vibrates. It is constant and I have realized it is not just in m…
the accounts read alike, found by meaning rather than by shared details
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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.