USA Raleigh, NC 27603 · 2018-02-08 · from the WORLDHUMMAP archive
A low hum in USA Raleigh, NC 27603
It's a low electronic hum. Like a refrigerator compressor or an engine that's running far away. It's a sinuous sound. I hear it upstairs at night. I never hear it outside. My husband can't hear a thing. Earplugs muffle the sound a bit. I never hear it first thing in the morning. I do have sinus trouble when the weather changes. My head is a built in barometer.
What they reported
First noticed: 2018
Pitch: 120 hz
Loudest: During the night
Where: Indoors
Symptoms: It's just annoying, but I'm learning to ignore it.
Changes with weather: I have only been hearing it for a few days, so no. Not yet. Although, rain on the roof masks it.
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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