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
United Kingdom, Eastergate · 2018-12-26 · from the WORLDHUMMAP archive
Low frequency sound that feels like vibration with pressure on the ear The local environment agency could not get a reading but I do not believe that this is internally generated. Using Spectroid on tablets and the phone produces variable results.In bed the vibration can be felt through the pillow. I need to use an app to generate a fan noise in order to sleep. Ear plugs do decrease the sound but are unable to block it and it is the vibration element that causes most distress. I believe that if it was internal that the noise would not weaken when the ear plugs were used. On days when the noise is strong it can also be heard oudside and in the car if everything is turned off. I put that I first heard it this year as that was when it suddenly became much louder and incessant [from Aug 2018]. I have been hearing it much more faintly for about 4-5 years for a very short perios in late summer and thought originally that it was coming from next door. However, it only seemed to continue for about a month or so each year and then stopped, until the next year. It did not disturb my sleep. Now it behaves in an identical manner but is a lot more intrusive.
What they reported
First noticed: 2018
Pitch: 65 Hertz
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Sense of vibration
Changes with weather: Sometimes it seems to be worse when cloudy. Wind direction does not seem to make any difference.
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
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both described a low hum
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both described a low hum
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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
Very low frequency hum, like the sound a diesel vehicle would do from a distance before getting too close, but constant all the time. I can hear the noise better when it is completely silen…
the accounts read alike, found by meaning rather than by shared details
The sound seems to come from the sky, an intense vibration. Similar to the frequencies emitted by a diesel engine of a car with a slight acceleration or a larger engine at slow speed. Someti…
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
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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.