Some of you first heard it in the 70s. One of you heard it on a hot summer day in Hampstead Heath, London. And one of you even wrote a poem about it.
On Wednesday Philip Jaekl reported on a mysterious phenomenon known as hom. Up to 4% of people around the world are considered to hear the bad, low noise. The actual source is unknown, although many hear that are found in urban areas, suggesting that it could be some form of noise pollution.
Anecdotes sounded thick and fast like "buzzing" shared their experiences and tried to describe it. "An endless riff of heavy metal music … It's hard to tell if I felt or heard," said one. "Mechanical whirring" spins, "said another. Varied locations – from the Cheshire countryside in the UK, to Chichagof Island off the coast of Alaska to high-rise blocks in Sydney, Australia.
This is not the first time a buzz has hit headlines. In 2016 the residents of the Canadian city of Windsor were disturbed by a strange noise. A later study confirmed that it was expected to come from the kiln operation of an American steel plant on the nearby island of Zug.
This week's readers have suggested theories about what the mysterious buzz of the world and some more skeptical readers question the idea that it exists at all. Although some of the posters mentioned, classic tinnitus is different, he said: The world is very homely. "
He added: "While there are repeatedly stressed that there are many sounds created by human activity it can sound like courage, and it takes some effort and knowledge to keep track of those sounds down.There range from electric noise, pumps, industrial machinery, and so on. Once we eliminate those sources, we remain with the global phenomenon that I am learning. "
"True listeners" or not, here's what our readers said on the subject:
How does that sound?
I was living in the center of Liverpool and I could hear that strange buzz in the middle of the quiet night, even though my partner had never succeeded. To me it sounds like a big diesel engine, probably a ship or train that will be close. However, after this "suffering" for months at a time I decided to do proper research in ship and train movements to try to isolate the cause – to find out that it was not.
Some claimed it was tinnitus …
KaterinaDelina I would like to know how tinnitus has been excluded from a list of possible reasons. Tinnitus can be a low buzz or a rattle, it does not always ring or high. I have tinnitus and there are three different voices – a low whistle, a lower ring, and a low noise.
But others disagreed
I do not think it is tinnitus because it sounds very frequently. I think we are talking about 18Hz or lower, which is around the area of Fattest Cathedral tube. These pipes are designed to be more "felt" than audio. However, because frequency is right on the edge of human hearing, and we are all different, only a few of us can hear it. Whatever it is, and where it comes from, it's annoying if you can hear it.
Jaybee UK I moved to Bristol six years ago and started to hear it. Has been following the subject eagerly since then and is very familiar with Glenn's research. For all those pointing a finger at tinnitus, or some other unexplained phenomenon produced from within, explain this: I can completely eliminate the buzzing using silicone ear plugs. The buzz I hear is mostly everywhere but just inside the house. It often starts at a certain time, usually between 2,200-0100 but it can also be present throughout the day. It is around the range of 50-60Hz.
Many of them remained vague
Unnamed: Nancyloh is so glad to know there's a name for him! I heard that three or four times in the 70s. Every time it was somewhere else in Singapore. It was not tinnitus or from the inside but outside. It was a "buzzing" mechanical buzz, loud and unambiguous. Even the person I heard heard it, and joked about UFOS.
CitizenGlenn Yes, I heard the "Hum" … I live in a high apartment near the CBD of Sydney, and a stone throw from the Southern Cross Drive, which I long considered the reason. It is interesting that one of the hypotheses mentioned in this article is high speed motion. The sound is like the low-frequency buzz of a propeller-driven plane swinging between a louder sound and a softer buzz. At first, I thought it was DC3 asleep or similar in a circle, but it was not so. I do not hear it often, but when I do, it's quite noticeable.
The first Broadford Boy I experienced it as a nighttime phenomenon in the early sixties, when I lived on the edge of a big city – I know it because (I remember to remember) I referred it to a poem I wrote for the school magazine.
People say they hear it at different times of the day
Tintenfische The only time I do not hear the buzzing is very early in the morning when the world sleeps.
Readers offer their own explanations …
LZephania neurologically "an internal product generated by sound" seems a reasonable explanation. There is a variety of similar phenomenon known in medicine.
This Sensel can be updates and the use of high pressure natural gas lines in many suburban cities?
Maybe it could be "beat frequencies". When you have two (or more) voices of different frequencies both present, "pulse frequency", additional frequency of sound, produced, be the mathematical difference. With being a huge number of urban sound sources with many different frequencies. This may explain why some different observers perceive different frequency sounds.
Some places have their own "humming"
Trevor Hutton My father was a boy from Holon Beach during WW2. He often referred to "Suffolk Hom" or "Suffolk Noise," which he said a small number of people could feel when he was a child and then. There were rumors about it during the war like the enemy tunnel and so on one day I took the dog for an early walk around 5:30. And all the while, some time after I could sense the noise of noise, I would compare it to an endless riff of heavy metal music. But it was fixed, lacking direction, and it was hard to say whether he felt or heard. It was definitely not music, and I'm sure it was Suffolk noise.
Sblejo Taos, New Mexico, not what was described as a "metropolis", known for its "Taos hum", I first heard about it in the 70s, I've never experienced it.
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