An open record of things people cannot explain

South Australia 5211 · 2024-01-06 · from the WORLDHUMMAP archive

A low hum in South Australia 5211

It's similar to the sound of my fridge when the motor cuts in, only a bit lower in frequency. I can also compare it to the distant, low sound of an engine running or a cement mixer on a distant building site. It's a continual hum with no change in tone which seems to be louder when there's no other sound e.g. at night when trying to sleep, it keeps me awake. It's similar to the noise I hear when I block my ears with my fingers but not quite as loud.

What they reported

First noticed: 2023

Pitch: 230 sine

Loudest: During the night

Where: Indoors

Symptoms: Insomnia, Anxiety

Changes with weather: Yes, it's foggy today and I can't hear it as loud as it usually is!

What stood out: a low hum

 

Others who described something like this

2018-06-19

Low humming sound with higher/lower hums I'd like to know if it's possible to stop it!! And also..just as I'm writing this it begins again...so I will re answer ..I only hear it during the d

both described a low hum · 359 km away

2018-07-11

Low vibrating noise which gets louder at night. I first heard this when I was a kid in the late 70's in the UK. Didnt hear it again until a couple of years ago. Drives me insane with the in

both described a low hum · 597 km away

2019-07-25

low frequency 'thrumming' seems to be modulated around nication2 hz The sound seems directional, around due North, it is just as loud inside as outside - there are 330kv powers lines due nor

both described a low hum · 878 km away

2019-11-06

Distant idling diesel engine, stops when I yawn or if a sound is made I played an audio 'subwoofer test' online at onlinetonegenerator.com and after I stopped when it got too low hertz I too

both described a low hum · on the other side of the country

2019-03-19

A relentless, continuous hum throughout day and night - although much louder at night, peaking in intensity in the early hours to dawn. Most times it is steady - very similar to an electrici

both described a low hum · on the other side of the country

2018-03-20

Humming/ rumbling in ears that can last months or come and go over days. Extremely stressful after all tests reveal nothing wrong. Causes stress and anxiety. Feels like an invasion when you

both described a low hum · on the other side of the country

2018-11-30

The sound seems to come from the sky, an intense vibration. Similar to the frequencies emitted by a diesel engine of a car with a slight acceleration or a larger engine at slow speed. Someti

the accounts read alike, found by meaning rather than by shared details

2018-09-02

Low frequency drone or hum, like an engine turning over. Only indoors. Only at my home since I moved here, nobody else can hear it and it�s not my ears as I can move away from the sound

the accounts read alike, found by meaning rather than by shared details

2022-03-05

it is like an uneven engine, it doesn't seem to be the AC that is an even hum for example but more like an idling car engine but it feels like coming from the walls. It is not a "sound" but

the accounts read alike, found by meaning rather than by shared details

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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.