Very deep, resonating sound, with a beat. I have a really noisy bathroom fan, which I left on at night, but I still had to run the kitchen fan, and have something playing on YouTube to block out the bass sound. Eventually, the noise I created became unbearable! Then I resorted to playing the radio, with the bass turned right up. This worked for about a week.
Epping, Essex. United Kingdom · 2019-12-08 · from the WORLDHUMMAP archive
An account in Epping, Essex. United Kingdom
What they reported
First noticed: 2018
Pitch: Roughly, between 55 and 80 Hz, although the sound is not as smooth as Sine, but isn't like Triangle either.
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Nausea, Sense of vibration, Anxiety, Depression, caused by a lack of daylight when I'm up all night, and end up sleeping during the day.
Changes with weather: Not that I've noticed. But heavy rain at night can block out the sound a bit.
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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.