USA, Belgrade · 2019-11-17 · from the WORLDHUMMAP archive
A low hum in USA, Belgrade
Low throbbing hum. Usually on an regular interval, rising and falling, with a 2-4 second period. It’s hard to determine if it’s airborne or structure born. Usually earplugs have little to no effect on the amplitude. Usually at night, easier to hear indoors. Will generally last 2-6 nights and then be gone for several weeks or months. It’s frustrating being a technical sound and acoustics person and not being able to identify the sound source.
low frequency hum or rumbling Live within 2 miles of Great Lakes shipping channel (Lake Superior/Lake Huron) so thought at first was freighters or possibly jet plane overhead despite sound b…
hum, a mechanical noise, continuous, never-ending, somewhat pulsating, varying intensity, always from south, I hear it inside my closed house (all else quiet) on southern side, I do not hear…
A Low hum that I can feel vibrating in my ears. An exterior feel around my head and ears. It's a slow pulsating deep hum that vibrates. It is constant and I have realized it is not just in m…
Sounds exactly like there is a large truck idling down the street outside. but I can actually feel the noise vibrating and pulsing inside my eardrum. The way it goes in and out mimics the so…
Distant idling diesel engine, stops when I yawn or if a sound is made I played an audio 'subwoofer test' online at onlinetonegenerator.com and after I stopped when it got too low hertz I too…
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…
A low, persistent hum that I can only hear at night - most nights but not every single night. It doesn’t have a source that I can find - it seems omnipresent and never varies in pitch or vo…
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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