Do you hear a deep hum that others don't?
A low-frequency sound like a distant idling engine or subwoofer behind the horizon. Heard in Slovakia, Czechia, Hungary, Greece, the UK, Canada and dozens of other countries. Its source has never been conclusively identified. We are mapping it — together.
This is what it sounds like
The recording below is the closest match to what our founder — and thousands of others — actually hear: a deep, monotonous low-frequency tone with irregular, unsynchronized breaks. Sometimes it drones for a long stretch, sometimes only briefly. Compare it with what you hear at night.
Sound sample of The Hum. If this matches what you hear, you are one of the estimated 2–4 % of people worldwide who perceive it. Add your location to the map — every report helps triangulate the source.
The sample is synthesised directly in your browser: a deep tone around 48 Hz with irregular, unsynchronised breaks — sometimes it drones on for a long stretch, sometimes it cuts out after a moment. The waveform shows the actual signal. Judge it best on headphones or speakers that can handle bass.
What is The Hum?
The Hum is a persistent low-frequency humming, rumbling or droning sound reported by people on every inhabited continent. Most people around a hearer perceive nothing at all — which is exactly why the phenomenon went unstudied for decades.
Documented outbreaks include the famous Taos Hum in New Mexico, the Windsor Hum in Canada and the Bristol Hum in England. Reports share striking similarities: a tone roughly in the 30–80 Hz range, worse indoors and at night, unaffected by earplugs.
Despite decades of investigations, no single source has ever been confirmed. Gas pipelines, industry, wind farms and ocean microseisms have all been proposed — and none of them explains all the evidence. That is why this portal exists.
The community in numbers
Worldwide map of Hum reports
Every point is a real person who hears it. The map is public; adding reports is open to approved members so that the data stays trustworthy.
Open the map →Latest from the community
The first approved posts will appear here soon.
Enter the community →You are not imagining it. And you are not alone.
Registration is free. Every account is manually approved to keep the community serious and spam-free. Once approved, you can share your experience, comment, publish research findings and add your point to the world map.
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