France 69860 Deux-Grosnes, Switzerland 1700 Fribourg · 2021-12-13 · from the WORLDHUMMAP archive
A low hum in France 69860 Deux-Grosnes, Switzerland 1700 Fribourg
Very low frequency hum, 103 Hz in left ear. I got in touch with a professor working on magnetoreception but he did not answer. I sent him an excel file with recorded times of the alternative frequencies. At first, I thought is was the emission of submarines using low frequency waves to communicate with some form of code. This would explain times with constant frequency (no comm.) and times with alternative sequences of variable lenght.
What they reported
First noticed: 2016
Loudest: During the night
Where: Equal indoors and outdoors
Symptoms: Not really a problem if I am doing something rather than listening.
Changes with weather: Difficult to say. I had the impression that very clear weather increases the noise.
Low loud sound, like really going though the ear canal and deep... like low frequency Maybe a more precise description of the noise, with a comparative of existing sound..(?)
In that case, I…
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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