USA, Wilmington NC 28409. I most often hear the hum in the house on the upstairs second floor and at night. However · 2018-05-01 · from the WORLDHUMMAP archive
The sound is a somewhat oscillating rolling mid bass frequency that seems to also produce a high pitch resonance in the house as an overtone or I forgot the word I was thinking of to describe it better. Maybe a harmonic produced as a result of the primary resonance created by whatever vibration hitting our home . We live in strange times.
What they reported
First noticed: 2014
Pitch: 70 hertz
Loudest: During the night
Where: Indoors
Symptoms: Sense of vibration, Anxiety
Changes with weather: Not really. It remains pretty consistent except the speed of oscillation does change. Eve
Very low frequency resonance Bening a muaician with sound mixing/recording skills, I can firmly say that the hum is not oeiginally a sound. It is a resonance, vibration, that propagates to y…
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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