An open record of things people cannot explain

Usa, Manhattan/Belgrade 59714/59741 · 2018-07-13 · from the WORLDHUMMAP archive

A low hum in Usa, Manhattan/Belgrade 59714/59741

Low humming that kinda has a wave pattern to it. Sometimes it starts getting louder & louder. Other times it's just a steady volume. I liveed out of town when I started hearing the humming. I live in Belgrade now but still hear it from time to time. Was more frequent living away from town

What they reported

First noticed: 2012

Pitch: 140 sine

Loudest: During the day

Where: Indoors

Symptoms: Insomnia;It get so loud i cant get to sleep. have to turn a fan on or have some other background noise to try & drown it out.

Changes with weather: No

What stood out: a low hum

 

Others who described something like this

2018-10-06

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.

both described a low hum

2018-05-24

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

both described a low hum

2018-09-30

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

both described a low hum

2018-02-21

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

both described a low hum

2018-12-05

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

both described a low hum

2018-10-18

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.