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, Hamilton · 2018-06-13 · from the WORLDHUMMAP archive
Non-stop hum/vibration that started 5/12/2017, 196 Hz I would like to have access to a website that reports progress in identifying or possibly eliminating this horrible sound. I would also like to find out more about Dr MacPherson's frequency blocker and whether it is available for purchase. Should I ask him personally?
What they reported
First noticed: 2017
Pitch: It is impossible for me to distinguish between, say, 190 Hz and 200, but 196 matches what I hear on the piano.
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing);Insomnia;Anxiety
Changes with weather: It is softer in winter, starting about Dec. 1, and louder starting mid-May. The frequency does not change.
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
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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.