USA, Provo · 2018-03-22 · from the WORLDHUMMAP archive
A low hum in USA, Provo
Low flowing vierying hum. Sounds like vuuuvvvuuuuuvvvuvvuuuuuvvvuv. I was able to separate 3 distinct sound patterns (I am autistic so that may also be sound sensitivity). The 2nd is like a fast high pitched like the cell phone sound when you get another phone too close during a call and can hear the signal in the speaker You have to be in a quiet spot to hear it because it quiet but seems to resonate in the head. Maybe rooms work like a reverse speeker box. Maybe wood and bone resonate with it.
What they reported
First noticed: 2017
Pitch: Close to 90. The volume seems to louder because it seems to resonate in the ear or head somehow yet still quiet.
Low frequency hum, always same frequency, I'd estimate around 50hz (at least my perception). I only hear it at/in my home, if I'm at another location, I don't think I've ever heard of it. …
Low pitch hum estimating around 50-100hz The sound is not a perfect pure tone, and has slight volume changes, it sounds similar to the hum of a fan motor. I have driven around in an attempt …
A low frequency Hum sound that fluctuates subtly but for the most part is steady The Hum is a low frequency and droning sound and it kind of fluctuates in tone.. almost like an idling diesel…
Very low-pitched continuous drone. Pitch rises and falls slightly but can remain steady at times. Inaudible to my wife. Reminiscent of the hum from a large transformer/sub station but there …
Low, soft rumble - as if a large truck were idling in the distance - it varies, but not rhythmically - I can almost "feel" the vibrations. Most predominantly at night, in the bedroom on the…
Low hum, sometimes pulsating, sometimes not. It is very loud. It sounds like a propeller airplane way off in the distance, but it doesn├»┬┐┬╜t go away. Or an 18-wheeler on a busy freeway, …
both described a low hum
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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