U.S.A., Newbury Park · 2018-08-26 · from the WORLDHUMMAP archive
A low hum in U.S.A., Newbury Park
It sounds like a distant diesel engine or generator that can get so loud other noises do not drown it out. I've found that the hum gets so loud sometimes that background noises do not mask it. Other times it's quieter, so it's easier to ignore. I also initially thought it pulsed but have come to realize the pulse is the interruptions of my breathing, etc. If I hold my breath and listen it does not pulse, it is a constant noise.
What they reported
First noticed: 2014
Pitch: 60 hertz triangle is closest but not deep enough in tone
Loudest: During the day
Where: Equal indoors and outdoors
Symptoms: It's irritating and I play music to block the noise, but don't feel physical symptoms
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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