USA, Phoenix · 2020-01-05 · from the WORLDHUMMAP archive
A low hum in USA, Phoenix
Hum, deep. Mostly only at night. Not always present. The hum or pulse does not have a discernible pattern. Sometimes short rolling, but steady pulse with longer extended steady sessions . Sometimes a mix. I have heard this hum for well over a decade, maybe longer. At first I thought it was outside - it is more prevalent inside but I have sensed/heard it outdoors. I have tinnitus and that is constant since I was about 7 to 8 years old. No
What they reported
First noticed: Before 1990
Pitch: The preset was too high - I set the tone to 112 because what I hear is much deeper but that still wasn’t deep enough - the hum I hear is a thrrrummmm
Loudest: During the night
Where: Indoors
Symptoms: Insomnia, Sense of vibration
Changes with weather: I have not made that correlation
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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