Germany, Potsdam · 2022-10-27 · from the WORLDHUMMAP archive
Pulsating, vibrating deep low frequency sound. Sometimes it dissappears. At night it is more noticable. The sound is always pulsating, almost mechanical, but it differs in length. Even when i close my ears i can feel the vibration. I live here for about 7 years and never before have i noticed something like this in other apartments. Thank you for this website and i hope that my contributions will be of any purpose to you. I don't have the slightest idea what this sound or vibration could be. It's almost mechanical most of the time, the vibration and deep low frequency sound are very rhytmic. The tone is rhytmic but in a monotone pulsating way and there are times, where the pulsating sound is different in lenght than it was on another occasion. But when i can hear this sound, it never suddenly changes in lenght or strength. I think that's all. Feel free to contact me for further infos if you need them: snarkus@web.de
What they reported
First noticed: 2015
Pitch: 20 hertz seems to be accurate. When i listen to 25 hertz it doesn't pulsate in the way i can hear it. Strange thing is: i even can hear a sound at 3 hertz? Is that normal? At 3 herz i can hear a very slow pulsating sound like a heartbeat.
Loudest: During the night
Where: Indoors
Symptoms: Sense of vibration, I really can't tell other symptoms. When i first noticed the sound i was of course a little nervous about it. But nowadays after so many years i just don't care anymore.
Changes with weather: Not that i ever noticed it.
What stood out: a low humpulsing light
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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