Switzerland, Lausanne · 2021-06-01 · from the WORLDHUMMAP archive
A low hum in Switzerland, Lausanne
Low frequency undulating sound like a truck or engine working in the distance. I have done work to eliminate possible sources (for instance the buildings pumps etc). Including talking to authorities that were dismissive and putting the burden of source identification on me. One more thing: equipped with Bose Q35 headphones (excellent noise cancelling) I am now able to hear the hum outdoors. Since it eliminates a lot of other noises, it makes the hum clearer. That allowed me to travel around the region and try to see if there are boundaries. I normally do this excursions in calm no wind evenings where the hum is pretty strong here in my place.
What they reported
First noticed: 2019
Pitch: 66Hz
Loudest: During the night
Where: Indoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Insomnia, Sense of vibration, Anxiety
Changes with weather: Yes. I believe if the weather is cold and/or humid the sound is more frequent and louder.
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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