Australia, Melbourne · 2020-11-12 · from the WORLDHUMMAP archive
A low hum in Australia, Melbourne
A low, persistent hum that I can only hear at night - most nights but not every single night. It doesn’t have a source that I can find - it seems omnipresent and never varies in pitch or volume. It momentarily blocks out with any other sound ie) rustling, talking, clicking fingers or even turning my head. Because of that, it can only be heard in quiet, still environments. When it’s quiet and still, the hum is very dominant. Any type of background noise blocks it though. Outside at night it’s hard to hear because there’s usually a lot of noise like distant traffic or rustling leaves. If I hear it outside at night it’s often in waves fading in and out as the background noise rises and lowers. I’d like to understand what this hum is and why it’s more persistent lately. Why can’t others hear it? I also don’t understand why there are some nights that it’s not present. I’ll try to notice whether weather has any affect from now on.
What they reported
First noticed: 2017
Pitch: 86 hertz sine
Loudest: During the night
Where: Indoors
Symptoms: Sense of vibration
Changes with weather: I haven’t noticed weather patterns affecting 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