AnomalyOld internet connection sound type, sometimes same frequency and sometimes there is a quick rapid change where the volume is higher and different. Then sometimes it stops in a very quick 1 big loud higher frequency wave. It is only then that I understand how intense it was. It is not handicapping me but when it stops there is a wow effect where I feel a relief
Saint Cloud, france · 2021-10-30 · from the WORLDHUMMAP archive
An account in Saint Cloud, france
What they reported
First noticed: 2019
Pitch: 400 htz a mix of sin and triangle lowest level
Loudest: During the night
Where: Indoors
Symptoms: Sense of vibration, Brain compression
Changes with weather: No
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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.