A low hum that sounds as of it may be some deep vibration that is causing it, I cannot feel it but only hear it. I mainly hear it in the winter months, it's been over ten years since I began…
both described a low hum · 137 km away
Guysborough County, Nova Scotia · 2019-10-16 · from the WORLDHUMMAP archive
low frequency hum, just below the average humans hearing capability you did not ask what it was :) in my case the hum is caused by forestry operations, there are 1000's of tree harvesting machines operating in the province which produce a lot of low frequency sound, this type of sound travels long distances and passes solid objects with ease, i believe it is the comulative resonance and interferance of so many machines that creates this hum. the machines move about from site to site but there are always several within the tenuation range just about any place in the province, and the sound will also change depending on the topography and weather conditions, thank you
What they reported
First noticed: 2001
Pitch: 18, plus or minus, it's hard to nail down
Loudest: Equal night and day
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Sense of vibration, seems to thorw out my ballance when it's loud
Changes with weather: yes. wind, tempurature and humidity all influence the intensity
What stood out: a low hum
A low hum that sounds as of it may be some deep vibration that is causing it, I cannot feel it but only hear it. I mainly hear it in the winter months, it's been over ten years since I began…
both described a low hum · 137 km away
very low frequency rumbling, dieseal idling, distant thunder sound, a peddalboard on an organ played with the feet that is usually used to produce the low-pitched bass line of a piece of mus…
both described a low hum · 670 km away
Low, constant, almost pulsing hum├»┬┐┬╜like that of the background engine noise of the Enterprise on Star Trek: TNG or the 'glowing' hum of the nuclear reactor on the Simpson's; a little rap…
both described a low hum · 682 km away
I thought there was an underground base in the city I live in. I told my wife several years ago that I was hearing trucks underground at night when I was trying to get to sleep. She never …
both described a low hum · 769 km away
It is a deep, low pitched, bassy sound between a hum and a rumble. There seems to be a slow, steady pulse to it. It reminds me of an engine idling off in the distance. I would swear it's com…
both described a low hum · 784 km away
Very low frequency hum, similar to the sound of someone blowing into the top of a bottle but far more intense - almost a feeling more than a sound! Where I live on cape cod is surrounded by …
both described a low hum · 790 km away
a very low frequency hum in two different specific frequencies. The hum switches back and forth between the two frequencies intermittently. When the environment I'm in has other noises the…
the accounts read alike, found by meaning rather than by shared details
Steady sinus huming infra sound 71 Hz. Seems the hum been gone for a day or two (?), then sudenly (2018-11-12, 9PM) as switched on with a button it come back, first experiend as very loud, b…
the accounts read alike, found by meaning rather than by shared details
Low frequency hum The hum is loudest inside the house but sounds like it is coming from outside. When I go outside it is still audible but less so with ambient noise and I cannot determine a…
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.