High Frequency Sound Beam Technology

So we can't hear this. It's it's going. I haven't turned it on yet.

When I do, it's going to blast out a 65 kilohertz beam because the wavelength is so small,

it doesn't spread because 65 kilohertz has a wavelength like that.

There's going to be in that sense similar to a laser laser just comes right out as a beam.

Now, how do we make that audible? Well, they put a modulation on top of the 65 kilohertz.

There's a modulation. And now here's the next thing I have to tell you.

Sixty five kilohertz is very high amplitude. It won't hurt you.

We don't think you certainly can't hear it and we don't think it'll hurt you.

And it's very high amplitude. And what happens when you have two sound waves like this?

Sound plus sound can create sound, but only at high amplitudes.

At low amplitudes, sound waves just travel right through each other.

You may be familiar with this, but at high amplitudes you can create sound.

So what happens in this apparatus is the audio sound,

the sound that you're going to hear is actually created in the beam, not here.

And because it's created in the sense it stays in the room.

So let me demonstrate this for you. Let me turn it on. And I'm going to find the piece of music that we like.

Yeah. You may not like it. Eagles. Eagles.

OK, good. Oh, we have a we have a friendly audience here.

I think you're just saying it to make us feel better. Right. All right.

So we're up to two thousand dollars, but you're not our money.

Now, the sound that you're hearing is being created in this beam.

It almost sounds like it's coming from your head.

So let me hit let me try to scan the whole audience.

Everybody gets absolutely remarkable. Are you getting it?

Let's try to do more things. Let's try to bounce it off the wall.

Raise your hand if you can very clearly hear it. I'm going to try to bounce it off the wall.

Look at where the hands are raised. We've got the military had just deployed some of these

into Iraq where you can put fake troop movements quarter of a mile away on a hillside.

Or you can whisper in the ear of a supposed terrorist some biblical verse.

I'm serious. And they have these infrared devices that can look at their countenance

and see a fraction of a degree Kelvin in temperature shift.