Slovakia, Poprad 05801 · 2019-04-26 · from the WORLDHUMMAP archive
like an idling truck in the distance, but pulsed, i feel it by tissues between ears. I know that some companies have audio equipment capable of measuring very low audio frequencies (1Hz and above). As the source of our hum is not known, i think only two cases are possible: 1. Some electro-hydro equipment, which has something to do with water infrastructure in the town, which obviously covers area of the whole town. 2. So called geo-pathogenic area, or some type of this, which has something to do with earth vibrations or movement. Maybe in some areas it resonates and produces infrasound waves.
What they reported
First noticed: 2010
Pitch: I think it is in range of infrasound(<20Hz, maybe near 20Hz), not sound. I feel it as vibrations on some tissues between ears. I didnt able to get some usable results.
Loudest: Equal night and day
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Headache, Insomnia, Sense of vibration, Anxiety, Feel pressure on lungs and vestibular system, permanent pressure in head, sometimes cheeking in brain tissues. Feelings that some tissues in head are larger than physically are. MR of brain dont shows abnormalities. This phenomena is very big problem for me due to very high sensitivity and lability.
Changes with weather: There are no big changes, it is hard to determine. I feel there are small changes in periods of pauses between booms and magnitudes. I sense it like pulses, no harmonic waveform.
What stood out: a low humpulsing light
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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