Wales (UK), Mold · 2024-10-29 · from the WORLDHUMMAP archive
Constant low but distinct, penetrating, background rumbling droning noise which surges/pulses similar but not the same as a parked car or lorry engine idling in the near distance. Can hear every night for years and no getting away from it, often awake through insomnia in early hours so most noticeable then, not sure if this noise is cause of my frequent nightly waking but it's very wearing. Over the years of the hum being present I Have in the past tried to prove to myself that sound is not within my home by turning off mains electric, got rid of fridge as noise is similar tone to compressor. Walked outside to try and pinpoint source without success, driven around to see if fan noise, compressor or conveyor noise from industrial estate few miles away as the potential source but this was not the case. Looked online into high voltage power lines as they are fairly close, power station 5 miles away and jury out on that one, also mobile masts and phone signals RF soup we live in these days could be the cause. Also thought it might be tunnelling machinery as many old mining and man made underground storage facilities within a few miles of where i live. Perhaps low frequency resonance of caves or tunnels from mining in area and even natural limestone caverns in the area. I tried moving rooms In the house to sleep in, now try to sleep downstairs on settee as it seems worse upstairs, but still hear it clearly. It's possible hedges front and back of house dampen sound slightly. My partner at the time when noise started years ago could not hear it but has heard it since but not constantly like me, she had to concentrate to hear it and described sound same as me, like lorry idling in distance low brum, brum. I'm not sure if anyone else in the area hears it, but ex girlfriend few miles away was also driven to distraction by it and described same sound as me, totally independently.
What they reported
First noticed: 1996
Pitch: Sin about130 to 140 turned up high volume on slider
Loudest: During the night
Where: Indoors
Symptoms: Insomnia, Anxiety, Irritability, worn down feeling, constant trying to distract self from it without much success.
Changes with weather: Can be masked by strong winds and rain any noise that exceeds the hum noise by a few decibels, most noticeable when weather is calm.
What stood out: a low humrumbling
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both described a low hum · rumbling · 134 km away
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the accounts read alike, found by meaning rather than by shared details
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the accounts read alike, found by meaning rather than by shared details
Low frequency - sounds like an airconditioning unit or low frequency diesel truck in the distance. Is louder sometimes than other. Sometimes really loud - particularly at night when everythi…
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.
Anomaly