This article I stumbled upon just blew my mind and not going to lie, freaked me out. I would love to hear some thoughts.
***I apologize in advance for not being a contributor and providing a lot of response. I’m a homeschooling parent of many and just got one down for a nap. Now I have lessons with the others.
How could a screech be infrasonic? Infrasonic refers to pitches below the range of human hearing, <20 Hz. It's the pitches that are slower than most subwoofers can reproduce. If you could experience a reproduction of an infrasonic tone you would feel it in your body, but not hear it.
Thanks for clarifying, I honestly don’t know much about this and appreciate your response.
You are welcome. Thank you for being nice.