AnomalyVery low, persistent, wavely sound If a person hast hot low or high or alternating blood pressure. For example, sometimes I hear a high sound in my head, like having an electrical transistor running. I am convinced that ist connected with blood pressiert when I drink unsufficient amount of water.
Croatia · 2019-12-04 · from the WORLDHUMMAP archive
An account in Croatia
What they reported
First noticed: 1998
Pitch: The sound that I Heat is much more deeper than those od 440 and 432 Hz displayed
Loudest: During the night
Where: Equal indoors and outdoors
Symptoms: Sometimes it is so loud that distracts me from Readingu or "hearing" my thoughts
Changes with weather: Ni, but the sound has become little bit higher during the past decade
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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.