Dr. Milton Garces

And what we've done as a species is...

Our ear does not respond very well to those sounds because there's so much of them.

So we are immersed in this inaudible sound field all the time.

Oh, yes, we can.

Consciously?

We can when it exceeds our threshold of comfort.

We're finely tuned species, right?

As soon as infrasound gets a little louder, we perceive it through vibration of our body.

And usually when infrasound is loud enough, it leaks into the audio range.

So you start hearing as a bass tone, right?

And so that's when we begin to sense that as soon as it increases past our threshold of comfort, there's like, oh, there's something happening.

And it can be very unnerving because what generates infrasound is usually bigger and stronger than us, right?

We're talking about the forces of nature, right?

Big things.

Often moving fast, right?

An asteroid doesn't have to be big, but if it's moving really fast, it has a lot of power and it will generate infrasound, right?

So all these things that are like big, hot, or fast can radiate infrasound.

And when you hear those coming, it's fair warning, right?

In some ways it can, yes.

In fact, one of the most...