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it's the weirdest thing Elijah can you hear this speaker yeah I can hear

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it somehow my microphone picks up

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nothing right next to it but Elijah can hear it from down the road now sound

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waves are always directional to a degree but this

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thing is on a whole other level perhaps

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magic spoiler no the oddly model B uses

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Ultra rasonic Audio Waves which you normally can't hear and add some special

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sauce to create a directional speaker that's designed to create a private

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listening Zone giving the user a headphon like

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experience is that something people are asking for and what are we giving up in

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return also are there any fun creative ways we could use this technology not

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sure a few things and yes but before I

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tell you about them Elijah needs to tell you about our sponsor hey there you are

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Ridge upgrade your everyday carry with a ridge wallet their new Ridge lights are

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off your purchase and get free shipping with code

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lonus to help you guys experience how cool this thing is we've set it up on a

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lazy Susan in an open area of our warehouse then all you got to do is pop

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on a pair of headphones and you'll be able to hear exactly what we hear with

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the help of our friend Steve Elijah hit

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it that is so weird it sounds like it's

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in the one ear and then it sounds like it's inside my skull and then the other

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ear and then it's gone and then because we've got flat

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surfaces here in the warehouse it actually bounces off of some of them and

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sounds like it's coming from completely different places now alongside the

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greatest song of all time you might have heard a slight buzzing or interference

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or Dropout sound that's because the microphones are picking up some of those

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ultrasonic frequencies that I mentioned earlier but to most human ears it sounds

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as clear as any other speaker you'd find at the local Best Buy how does this work

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and what makes it different from a traditional speaker in a traditional

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speaker two things contribute to the audio that you hear

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the amplitude or how hard the speaker pushes against the air around it

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determines how loud it is and the frequency which is how many of these

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Cycles it completes per second contributes to the pitch Sound Energy

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travels in waves just like ripples in a body of water meaning that when you make

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sound anybody nearby can hear baby no money forget that Melody now we can

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focus or aim it to a degree

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but because the wavelengths of audible sound are so long the waves can travel

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through solid objects and even bend around corners that's why I can hear

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this speaker pretty well from behind it that's why these speakers use ultrasonic

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transducers instead and I can practically hear you guys shouting lus

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humans can't hear ultrasonic frequencies that's what makes them ultrasonic and

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you're right we can't but thanks to some math that I don't understand now and

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probably never will we can alter the amplitude and can modulate our

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ultrasonic transducer array to encode

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audible sound within ultrasonic sound

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now it took decades and the development of sophisticated computer simulations to

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go from the original Theory to this point but now that we're here it

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flipping works and because ultrasonic

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waves have much shorter wavelengths they spread out far less creating a

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relatively focused cone of audible

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sound it's still about 15° meaning that

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at a great enough distance multiple people can hear it but the effect in

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person is really trippy not to mention a

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lot of fun I'm in position where it should be hard for anyone in the lab to

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see me and I'm going to start up a WAN Show I thought someone was talking I

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thought then I'm going to beam it around the warehouse and see what

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happens next Target

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Logistics I don't even know what this plastic is here for it's clearly to

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prevent peep Bad actors like you Elijah's bringing a knife so we can

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control Logistics now we're going to point it through the plastic but first

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we got to troll

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Elijah so confused I can see Jamie okay we're going to go for Jamie we're going

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to go for Jamie

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okay where the how they all find us immediately

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dang it how'd you guys find us so fast I

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heard through it earlier oh dang it well

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you win some you lose some still a lot of fun if we were smart and we really

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wanted to throw people off though we would use the effect where it bounces

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off of flat surfaces creating a really weird effect where it sounds like it's

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coming from the Reflection Point rather than from the location of the speaker

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let me show you what I mean okay Elijah I'm straight at you yep I hear it there

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right there okay what if I bounce it more times I hear it right about

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there yeah and it it's super trippy if I

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did not see you I would think it's coming from the wall pretty wild right I

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mean you'd think after a bounce or two it would sound a lot farther away but

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ultrasonic waves don't attenuate nearly the way that audible waves do so whether

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I'm 10 ft away or 100 ft away bouncing

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once or four times it sounds really similar the question

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now is how far can we go well based on

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what they saw in the intro you're going to have to go a lot further than that buddy all righty poor Elijah he's

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getting his steps in today boys most exercise I've done all year how about

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now yeah I can still hear it how about

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now no I don't hear it oh okay how about if I aim it at

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you I it sounds the exact

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same I hear it totally fine okay keep

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going oh oh my goodness it's crazy to me

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how it's been sounding almost the exact same volume the whole way how about now

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I can still hear it that is wild we'll

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keep going a little bit more very faintly but I can still hear

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it that is very cool we're almost at the end of our parking

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lot yeah you can still hear it I can still hear it yeah and Andy can hear it

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from back there still oh

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yeah going

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there's a car in the way but we are from end to end on the parking lot here's the

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Google Maps image to show you how far we are uh let's see if I can still hear it

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do you hear it Andy I hear the truck you might as well

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come back oh my God this is freaking hilarious they're standing in that

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corner with all those cars around them and I'm kind of moving it around a little bit it's got to sound like it's

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coming from like freaking everywhere there was a split moment where all the

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way at the end of the parking lot I heard like one or two notes at that

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distance the issue you're running into is lining it up not even that you can

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hear it anymore that is super cool but

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ultrasonic waves do have a downside they get blocked very easily you can see I'm

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sitting here chilling listening to music all I got to do is put this piece of

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paper in front of it and

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H and there's more remember that sound

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Jammer that we bought on AliExpress

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in theory it can be deployed stealthily but in practice we found that people

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with sensitive hearing sorry sorry sorry can pick up those high frequencies and

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because those ultrasonic frequencies need to be very high amplitude for the

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encoding to work meaning they're very loud it can create an uncomfortable

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feeling for some people and especially some animals with all that cool how does

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it work stuff out of the way what are these even for I mean I guess as a gamer

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having a personal private listening cone without needing to wear anything on my

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head would be kind of liberating but at this price yeah it's more for commercial

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installations you know showrooms museums

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and the like so you can step in front of an interesting piece learn more about it

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available now at LTT Store.com and when you're done you walk away and the audio

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is gone with a cleverly designed Gallery including soft surfaces to minimize

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Reflections you can offer a pretty engaging experience for your customers

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or patrons oddly the makers of this particular speaker focus on digital

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signage and advertising but they also highlight some pretty creative uses like

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this one integration in a playground haunted house pretty spooky what's

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really cool is oddly is working on cutting the costs but if you don't want

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to wait there's actually tons of videos online showing people building these

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speakers for themselves including this one guy who actually made it look like a

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little gun to point at a Target I don't know it's kind of cute just like this

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cute segue to our sponsor thanks to Corsair for sponsoring this episode

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start with a product like their K65 plus wireless keyboard and select from a

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variety of different themed key caps to match your style from there you can add

133
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a mouse and a mouse pad to complete the look course sah handles all the heavy

134
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lifting for you just make your Custom Creation and they'll build it and ship

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it right to you learn more at the link in the video description if you guys did

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enjoy this video go check out the recording Jammer video that one was super cool as well and helped cover up

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some hot takes that lonus had