low frequency hum or rumbling Live within 2 miles of Great Lakes shipping channel (Lake Superior/Lake Huron) so thought at first was freighters or possibly jet plane overhead despite sound b…
both described a low hum
USA, Silverdale · 2019-12-25 · from the WORLDHUMMAP archive
It sounds like a cello or bass instrument continuously playing only one note in the lowest octave no higher than g1 sharp. The hum plays both staccato and whole notes, and it strongly resembles a bass instrument playing morse code with one very low octave note. Other things that describe the sound are the hum of semi trailers on the highway, a large box fan, or an outdoor air conditioning unit. I hear the hum even when all fans and air conditioning units are off. I am not near a busy highway. The hum does not match the rhythm of my breathing or heartbeat. I only hear it in my right ear. Sometimes the hum sounds far away and other times it sounds like my ear is in direct line with the sound waves. My right ear hears sounds differently after I had an ear infection a few years ago. I think it can hear lower tones which my other ear cannot hear.
What they reported
First noticed: 2017
Pitch: 142
Loudest: Equal night and day
Where: Equal indoors and outdoors
Changes with weather: I have not noticed.
What stood out: a low hum
low frequency hum or rumbling Live within 2 miles of Great Lakes shipping channel (Lake Superior/Lake Huron) so thought at first was freighters or possibly jet plane overhead despite sound b…
both described a low hum
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the accounts read alike, found by meaning rather than by shared details
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the accounts read alike, found by meaning rather than by shared details
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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.