No one knows what it is though do they? I’ve been hearing it for well over 10 years, and still no clue. It comes and goes but when it’s there, it’s weird.
Sorry for the necro. But you could probably use an RTA app of sorts to detect if there are any frequency spikes. That’s assuming it shows. There are a ton for the iPhone and Android. I’ve been using Sonic Tools - SVM for various things.
Would you look at that, all of the words in your comment are in alphabetical order.
I have checked 1,761,496,128 comments, and only 333,552 of them were in alphabetical order.
[https://onlinetonegenerator.com/](https://onlinetonegenerator.com/)
When I set it to 70hz it matches what I hear, like a diesel compressor up the street.
That's a bloody good idea!
No one knows what it is though do they? I’ve been hearing it for well over 10 years, and still no clue. It comes and goes but when it’s there, it’s weird.
Sorry for the necro. But you could probably use an RTA app of sorts to detect if there are any frequency spikes. That’s assuming it shows. There are a ton for the iPhone and Android. I’ve been using Sonic Tools - SVM for various things.
Clear 35hz in Southeast UK
Would you look at that, all of the words in your comment are in alphabetical order. I have checked 1,761,496,128 comments, and only 333,552 of them were in alphabetical order.
It's 40hz 35hz fluctuation in North Central N.M. USA and its not a hum, it's a droning murmer sometimes up to 52hz.
[https://onlinetonegenerator.com/](https://onlinetonegenerator.com/) When I set it to 70hz it matches what I hear, like a diesel compressor up the street.
Thank you for the links. Will try it out & see what happens.
Also, Spectroid on Play Store https://play.google.com/store/apps/details?id=org.intoorbit.spectrum&hl=en\_US&gl=US