I put Helium in my Guitar and now it’s a Ukulele?

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Want to learn more about these cool instrument theories? Dr.Martí Ruiz is your guy!
The Clavinimbus video: • Introducing Clavinimbu...
Listen to the original guitar full recording:
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Thank you Martí!
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I also used two songs from Blue Wednesday find him here he’s awesome:
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Soundcloud: / bluewednesday

[@RayMak]

The string breaking anxiety is so real bro.....I was sweating

[@hipwardx]

When string break at that point i probably left the string there with the instrument

[@kerbeuz1669]

Fax

[@Kerogas_]

Just put some graphite on a saddles under each string to reduce friction. You can "draw" it with ordinary pencil.

[@jayheartifilia9855]

Yo

[@saucybaka4439]

Get a hobby ray mak

[@xara-eiloo]

Hi! I'm a physicist-turned-engineer who has studied the physical acoustics of guitars somewhat extensively (it was the subject of my undergraduate thesis). Unfortunately, I don't think anything particularly interesting can result from using helium with a guitar. The PITCH of the guitar is strictly a property of the stiffness, length, density, and tension of the strings themselves--they won't turn into ukelele pitch unless you change one of those things. This will be true with any stringed instrument. But, the pitch is not the only property of a guitar that can be altered. The thing that miiiight be possible with helium is messing with the impedance of the body of the guitar, thereby altering the coupling of the strings with the air. This is what's happening with the balloon piano, I think (though I'd need a better look to be certain): the soundboard of the piano is FULLY enclosed in helium, or at least enough to be a significant impact, and because helium is much lower density than air, it couples poorly with the air, causing the sound energy to be retained inside the balloon--resulting in the quiet, long-sustaining sound we heard. There may have also been some resonance of the balloon itself happening there, but that's only going to be a filtering effect on the sound of the strings, rather than pitch-shifting them. That said, a guitar doesn't really use the air inside its body for coupling with the air--most frequencies travel directly from string to bridge to wood to (exterior) air. The bass frequencies ARE affected by the interior, as the whole body flexes together when the wavelength is long enough. The hole is present to allow pressure equalization. This does provide some (helmholtz) resonance but I expect that a change in this resonance will not dramatically affect the guitar's sound. What might be cool is if you (somehow) put a balloon around the ENTIRE guitar. I think, because of increased mismatch of impedance, you'd have an increased sustain on your notes and an overall quieter tone. Depending on the shape of the balloon you may also see some high-pitched resonance filtering on your tone. But the pitch, coming from the strings, will be largely unaffected.

[@ryottglayzer4340]

guitarist and physics student, i agree. basically, it will make the sound brighter and emphasize higher pitches alightly more

[@isegeese]

Mans wrote the whole bible

[@Aaronfurious]

This experiment is an example of wasting time. Free of logic.

[@jaspereves6661]

Physics student and guitarist, I also agree because if you think about it, it’s string that’s making the sound and not the sound hole, all the body does is amplify the sound, what would shift the pitch of the guitar is a different string material, which we already do but we don’t notice it as much because we tune it to the right note anyways.

[@d.esanchez3351]

History student and i know like 3 songs in guitar, Ive absolutly no idea what half of you guys are saying mean but I agree with you and i dont have anything else to add... But if you group and make a thesis on helium based instruments i could do a "History of the use of educative KZbin in the development of neoinstruments" and mention this or something.

[@lautarobenavides411]

Psychologist: "The guitar with cake cannot hurt you it's not real" *The guitar with cake:* <a href="#" class="seekto" data-time="336">5:36</a>

[@kumagawamisogi1968]

Double cheeked up balloon guitar

[@bodhiphermsangngam]

Matthias: “it looks guud” 😏

[@BrinnTDSowo]

Nah that's the whole bakery

[@JSBrown303]

"I may have other uses for this"

[@HuttyTheKid]

I graduated a mechanical engineer and have really struggled to combine my love for music with my degree. You show it’s possible! Subscribed

[@drinkmoresoda]

Cool story bro

[@Trip_mania]

Man you must be struggling with engineering alone as well, because there is plenty of engineering in music.

[@HuttyTheKid]

@@Trip_mania lol

[@deadeyeduncan5022]

This dude is exactly why you try to take self taught or on the job learned engineers, otherwise you get these people shot out by colleges that can't understand fuckin vibrations.

[@HuttyTheKid]

@@deadeyeduncan5022 man I’ve produced all my stuff and have millions of streams. Mechanical engineering is inventing and creating physical machinery. I want to creatively invent instruments. I also have a high paying job in engineering so this is just nonsense. You thinking school isn’t helpful is the dumbest thing I’ve ever heard

[@kaipixlab]

(The Helium has to be around the strings, this results in less “air” friction, and the strings can swing faster.)* So if you play a guitar in a room filled with helium it should have a higher pitch, than in a room with air. They did this experiment in a German TV Show, but the video is currently not available on the web. *edit: this is physically not correct, I was wrong!

[@vgaportauthority9932]

I believe this is true. If he'd put a small toy piano or something into a helium filled box I'm pretty sure it would be higher pitch. By regulating the mix of air and helium one could even do like a vibrato...

[@turboanalyst2628]

He's going to die for that to happen

[@OperatingDC]

@@turboanalyst2628 worth it

[@kayday1996]

@@turboanalyst2628 he could breath with a diving set-up

[@stoilstoy4ev948]

You can't hear anything in helium lmao

[@ThePraash]

Helium does have a big effect on how the balloon resonates. <a href="#" class="seekto" data-time="377">6:17</a> Without Helium <a href="#" class="seekto" data-time="413">6:53</a> With Helium

[@FoxDelSol]

I mean right?! The overtones are completely different, it almost sounds like a 12-string when filled with helium.

[@Daniel-ut6bd]

Don’t click the link/press more

[@KangJangkrik]

Together, let's report that spam

[@DavidBadilloMusic]

Exactly! No helium sounds richer, I believe.

[@peter4210]

Speed of sound in the balloon changed from the change of medium changing the properties of how the sound act with in but it does not change the pitch because the pitch we hear is based on the frequency of the balloon surface interacting with the air. The whole room has to be in helium for it to affect the pitch

[@christophermoore3589]

First video I've REALLY ENJOYED for ages. Brilliant. Nice to know that I am not alone in my woodworking skills. Have a few uke projects in mind (one started but on way back to drawing board cos I buggered it up). Now inspired to get going again. Keep up the good work. Subscribed.

[@luuuk2600]

It is so much fun watching you building this guitar😂😂😂😂 Good job!

[@burkhardstackelberg1203]

Essentially, if you couple your guitar to a helium balloon instead of air, the actual pitch will be no higher (the same as with singing) - you shifted only the resonance frequencies, i. e. the formants of your resonator. This makes it sounding "smaller" and somehow higher, though the pitch essentially is the same.

[@meinteybergen4617]

Good explanation!

[@Aqua_1014]

Yes you can modify the resonator's formants in a physical modeling synth in real time to really hear what's going on, sounds pretty neat!

[@slovborg7260]

Which is exactly what you can hear at the very start already. Instead of a mellow tone, it sounds sharper

[@kirkwahmmett1666]

I believe it also gave it less sustain. What I wonder is if sulfer hexaflouride would give it a fuller sound with more sustain.

[@mrmrmrkevin]

Put another way, it's like turning up the treble knob.

[@latifoljic]

This would actually work if you fed a set of bagpipes or an organ with a supply of helium, or played a clarinet or a flute filled with helium with your lungs also full of helium. It doesn't work with a guitar because the characteristics of the strings themselves determine the frequency, whereas with woodwinds and reed instruments, the characteristics of the the air column inside the instruments determine the frequency.

[@KariAlatalo]

Let's not try going for the lungs full of helium please. ^^;;;;

[@michaelshultz2540]

That is a nail on the head explanation of the true physics of how and why helium changes the pitch in your voice and other reed and wind insturments. But if you could hear in a vacume the pitch of any string insturment would not show a significant change in pitch . Now to the other extreme if you played string instruments under water or oil or mercury then you could drastically change its sound and pitch. Maby put the bottom of the strings on the upright piano in a fluid tank and mike the tank.

[@blackmage1276]

Watch Trent Hamilton play the Tuba or Trumpet with helium

[@vasimir3183]

sounds like one way to die

[@jetison333]

@@michaelshultz2540 idk if you saw but mattias recently filled a piano with water and played it

[@Fregmazors]

I really enjoy your videos. There are so many great projects, and music-related which makes them especially interesting to me! Some of them have amazing results, while others, although they don't work as planned, are just fun to watch. I never know what I am going to see next!

[@BordelloBabe]

You have tried using steel, right? Mattias' quivering smile had me howling. Comedy gold!

[@caseydubois3645]

So I did some research, and apparently it's the distinctive drum-like body, rather than the strings, that give the banjo it's distinctive sound. So you could make a piano with a giant drum for a soundboard, and in theory it'd sound something like a banjo. A pianjo, if you will. Yeah, this is probably one of my dumbest ideas yet.

[@illdeletethismusic]

this is precisely the kind of idea that should be posted in the video suggestion part of his discord

[@isaaclefevre7226]

Yes! As a banjo player, I approve this idea.

[@trealexander5271]

I want to see this XD

[@Mattiaskrantz]

Ooh hey Casey! This is weird. You know I actually bought a banjo while making this video because I was convinced it’s something I could do with changing that drum like you said. But I’m not sure exactly what the title would be. Like I put a kickdrum on my banjo? Idk lol

[@SapioiT]

@@Mattiaskrantz That title sounds good, to be honest. Maybe do the same for a guitar, so you can name it "I put a kickdrum on my guitar and my banjo". You could even use editing magic to make a small song using both instruments, if they sound decent. I don't mean editing the sounds to improve them, but to overlap them properly for the song.

[@alexrobarge5581]

Physics major here: Because the helium is the amplifying medium and not the producing medium, there is not as much of a shift in pitch. The actual guitar strings themselves would need to be encased in helium in order for the pitch to change.

[@manansvoicenstrings2962]

Would encasing the strings in helium increase the wave propagation speed in the strings or somethin? I think maybe a low mass density material were to be used for strings that could potentially increase the pitch under same string tension...

[@250tegra]

@@manansvoicenstrings2962 - yes! you can see that mass density effect with 'wound' vs 'plain' strings on guitars etc - and nylon or gut strings vs steel and other materials.

[@kamalmanzukie]

it wouldn't be pitch change tho would it? I would think it'd be more like formant shift

[@m.umerhassan3803]

In other words if i inhale helium and play flute or saxophone it would change its sound right?

[@Mary.F]

Jesus te ama muito!!! Tenha certeza disso

[@johnbuyers8095]

Happy New Year, please keep up with your amazing work. Love the off the wall inventiveness.

[@quilt4115]

thank you for making a dummy thicc guitar

[@milokojjones]

I wonder if the baloon body could be used on other string musical instruments, like violin and how it would sound - I mean, it works on guitar, so it could work on other instruments too :/>

[@Mattiaskrantz]

Yeah pretty sure I read it works great for smaller instruments but double bass and all that stuff didn’t sound good because of the large body. That’s all I remember

[@improvingguitarist1595]

I mean, I remember my electric guitar touching my cabinet and the sound being amplified. So really, anything can be an amplifier

[@mac1991seth]

TwoSetViolin flashback to violin-chan and Davie504 war.

[@just_a_dustpan]

@@improvingguitarist1595 what you just described is literally what an acoustic guitar does, it’s actually really cool how it does that. Generally a resonator just has to be flexible enough to actually amplify the vibrations, be filled with a fluid (whether liquid or gaseous), and have some way to get the sound from the resonator into the air. I may be wrong on a few things, though, as I’m just using my knowledge of physics and a bit of intuition and experience.

[@andrewbailey7999]

More tricky in a violin I think, as it has bracing posts underneath the bridge, which would get in the way of a balloon

[@JacksHQ]

Here's an idea: a piano that always plays the song you want, regardless of what keys your press. My thinking was that you could have a raspberry pi to do the logic, have all the keys trigger something that checks what the next note in the song is and then plays that note by either hitting one of several preconfigured strings OR hitting a single string that gets adjusted to the right tune dynamically (by servos, motors, or something).

[@OdaKa]

The lego grand piano kinda does this, although it's done electronically. Many electronic midi keyboards targeted towards people who are learning to play also do this.

[@glumpfi]

Haha that is nice. You could impress girls with that :D

[@Mattiaskrantz]

Self playing piano?😆

[@itismiguel6526]

Some $50 toy pianos do that

[@katrinabryce]

@@Mattiaskrantz Called the pianola, invented in 1896.

[@Micharus]

I was impressed by the build quality of the balloon guitar, despite you having said that you don't really have good skills for that sort of thing. The end result sounded pretty nice, especially with the blow up suitcase!

[@kekecode8616]

You know he's getting serious when he pulls out the Mark Rober music

[@harryemmott8597]

I think you've actually found the perfect formula for anxiety right here... Between the guitar strings and balloons I don't think I've ever felt so tense in my life

[@cineblazer]

This is what science is all about! Kudos to you for doing the experiment even though it wasn't guaranteed to work out. Personally i really enjoyed watching the build process and learning about the history of the question, and even though the guitar wasn't higher-pitched, i still walked away from this video feeling like you didn't waste my time. Excellent work dude!

[@Mattiaskrantz]

Thank you!! Yeah I just really needed an excuse to make a balloon guitar😍

[@improvingguitarist1595]

@@Mattiaskrantz why wouldn't you haha

[@PloverTechOfficial]

@@Mattiaskrantz next we can make a floating guitalele

[@slybunz8057]

Yeah yeah, science is cool and all… but all I can think about is that guitar’s buttcheeks-

[@lt3742]

Jesus is going to pass judgement soon. call on Him ! 😍😍😍

[@verg4469_]

love that u still posted even though it didnt work

[@chillmonkey6782]

Liked and subscribed for your outstanding contribution to the art and science of fefe construction. Cleaving a balloon down the middle to emulate buttocks is revolutionary. Total game changer.

[@NukeNuclearstrike]

<a href="#" class="seekto" data-time="313">5:13</a> “You don’t need safety glasses when you can… almost f*ck” -Mattias Krantz 2021

[@HiBye-zj9me]

Lol

[@SmartAlec86]

It's impressive how good a balloon guitar sounds. I think it uses the same principles as an acoustic guitar. The soundwaves reverberate inside the balloon the same way it would in an acoustic guitar. But the flexibility probably allows for some neet effects.

[@bradosanz4479]

Until the balloon pops mid-performance...

[@countvondutchessofwestmoor3974]

@@bradosanz4479 krantz needs to revisit this with an array of those long balloon animal balloons

[@chippi09]

You are a very interesting human and I am amazed of the way you think. You bring human ideas to the next level . I do the same to Multi-rotors and created my ideas to the next level and pushing the envelope until they fail but, I am retired now and trying to do some other ideas on whatever. Thanks for sharing ! Sub !

[@ImpedanceEurobeat]

As an electronic music producer: You haven't changed the pitch, however you affected the tone of the guitar. What putting a helium vs normal air baloon does is similar to using an effect like an eq/filter/saturation. You essentially just change the harmonic content of the sound, not the pitch itself :P

[@SamPearman]

Yeah it sounds so much brighter every time he uses helium, it's kind of amazing. Even the very first run where he just haphazardly sprayed some helium in a guitar body it was appreciably brighter.

[@martyclack8782]

I 2nd that the tone changed i have 30 % hearing in one ear and still could tell the tone changed.

[@gamertracer6942]

Good to know

[@smoothmidnightfudge7450]

Still really interesting though! By varying the gas in the chamber and the material of the strings you could probably get a huge variety of tones and “feels” out of the guitar by getting different ranges of harmonics, almost like an acoustic additive synth.

[@danielperales3958]

I noticed that too, and I'm glad you shared this info, thx

[@se7enspeed]

I have an idea for a piano build that I always thought would be interesting: A bowed piano. Essentially whenever you press a key, it wouldn't use a hammer to strike the string but a bow to vibrate the string, similar to a violin or cello. I think the way it could work is you build something to a giant belt sander perpendicular to the plane the strings are on, and then pressing a key for a note would, instead of hitting a hammer to strike the string, would push the string up into the belt sander. And obviously instead of sandpaper it would be like bow material that is waxed up with rosin. You could get the sound of an entire string orchestra through a piano!

[@truskoysusaventuras]

Look into the "Viola Organista" it is an instrument designed by Leonardo da Vinci using that concept!

[@johncasebeer179]

That is called the hurdy-gurdy.

[@IgnatRemizov]

Like John said, it exists and is called a hurdy-gurdy!

[@partytor11]

Some people mentioned hurdy gurdy but I think your idea sounds much more similar to the Nyckelharpa, a Swedish folk instrument made famous in Dalarna

[@WobblesandBean]

They already do this. All you do is thread some horsehair around the piano strings, and sway them back and forth to create the tone.

[@fathead997]

Lol I get some Mark Rober vibes due to the combination of music choice and engineering :p keep it up!

[@izsmusic7789]

what i love from his videos is the fact that he solved all of his “ impossible ” & “ nonsense ” problems .

[@Mary.F]

Jesus te ama muito!!! Tenha certeza disso

[@liambyrne4864]

<a href="#" class="seekto" data-time="388">6:28</a> that sounds good, more of that please !!

[@assisthi]

Really! The name of this song is "Andy McKee - Drifting".

[@krafensteinn]

He's anxious that the strings will break but I am anxious about how he puts those balloons. I feel like they'll pop anytime.

[@rolandhunter791]

Great that you show a long experiment with a negative result! Great to read the comments!

[@percygoodbeard4827]

<a href="#" class="seekto" data-time="452">7:32</a> dude... the guitar has a dump truck

[@tahmid9801]

I Wana slap that 😼

[@bassguitarplayer09]

@@tahmid9801 davie504

[@minevervideos1179]

I love that this actually worked, but very sad helium didn't make it super high pitched.

[@Mattiaskrantz]

Double agreed😭

[@Orbnoticas]

That 1 second shot of you shooting an arrow from your home made air balloon guitar. 10/10, this is what i come here for.

[@TheNastyRioter]

That construction stuff is really cool. :) Thank you.

[@thesecondislander]

The pitch is determined by the vibrational frequency of the strings - this *is* presumably affected by which gas they are vibrating in, so you'd have to put the strings themselves inside helium, which sounds pretty difficult :P

[@Revengeur72]

Yep! Couldve spared him some hours.. But that's accurate

[@003Pookie]

Yes, same thing with your voice actually. Did a brief experiment with a vocalist friend. It emphasizes the higher overtones, not raises the pitch. Otherwise, the new sound would just be a female voice (if male). The new sound is entirely unique.

[@grainsintherain]

But then maybe he could put helium inside a piano? Like, seal it and make a valve to put the gas in maybe?

[@mackit]

@@003Pookie do you mean that breathing helium doesn’t change the fundamental note, but only increases the volume of the overtones? If so that’s really interesting!

[@OdaKa]

@@grainsintherain Great idea!

[@benwebb4424]

The reason this doesn't work is because the pitch comes from the vibration of the strings. Having a lighter gas on the interior wouldn't change that. However if you had lighter strings you would, hence lighter gauge strings have higher resonant frequencies. Interestingly the helium guitar idea could work in theory if you had helium strings instead. Imagine a straw-like string that you could fill with gases to create different variables in the pitch. That in theory would work - but I'm also not sure how you'd actually thread something like that.

[@danieldouglasclemens]

I subscribed! Thanx for your funny ideas! Keep it up!

[@Biker20691]

I subed already lon ago. Your work deserves some support!

[@Tehn00bA]

<a href="#" class="seekto" data-time="313">5:13</a> "You dont need safety glasses" *String:* "And i took that personally"

[@uhrkommunismus3856]

The thing is that when waves change medium their frequency doesn't change. However the frequency of your vocal chords in helium changes which is a totally different effect.

[@pseudonymlifts2]

Nope, doesn't affect vocal pitch either. Just the formants. Might possibly make singing some high pitches feel easier due to the way vowels work.

[@tomhukriede8588]

What about inhaling helium and playing through a woodwind instrument?

[@richardbarrow2977]

So if it string where surrounded in helium that would raise its pitch

[@DCBfanboy]

_Strings_ are unaffected by medium in their pitch. However, any wind instrument (and voice is physically speaking a wind instrument, yes "vocal chords" are not real strings) is.

[@pseudonymlifts2]

@@DCBfanboy pitch is determined by mass length and tension of the vocal folds, very much like a string.

[@samuelparsons4990]

Always nice to see DADGAD out in the wild!!

[@l7wahn]

Don't feel bad 'bout it we're not subscribed to many people we have watched one or two videos. You have 1 mil subscribers. That are people that wanna look at your content frequently. The rest of us only found you once. Keep up the good work!.

[@BlackHoleForge]

I just want to say congratulations for getting outside your comfort zone. I am proud of you. You gave me a new definition of air guitar. Thank you, my mind is officially blown.

[@seccsycabbage2979]

That's actually a really cool build Mattias :)) I'm glad you're getting more sponsors and recognition so you can do more stuff like this

[@Mattiaskrantz]

Thank you!!

[@spwim]

the resonance frequency comes from a standing wave in the string, not the medium (meaning a standing wave in air or helium in your case) So the helium trick only works on instrucments based on that principle such as flutes or a helium powered air organ would be cool, but completely usesless of course lol) you could also use more dense gasses to lower tones. have fun and stay safe all

[@gefluzafix]

one thing u may have missed is the sound quality with the large blue balloon and the bloon suitcase were FAR better then the acoustic panel of the wooden box diaphram. you discovered a HUGE leap in sound quality for guitars, make a 111 percent pressurized perfectly sealed pvc diaphram and nestle it like u did with the baloon. youll make at leasta couple million.

[@ReviewingModsOfGames]

Oh my, this video is going to BALLOON in exposure!

[@Mattiaskrantz]

🎈😍😍

[@gadzoolks]

Hey Mattias what if you made a piano that has piano strings and guitar strings so you can switch instruments. (Like on an electric piano)

[@Mattiaskrantz]

Hahahh yeah that one is good

[@SqueezeboxOfDelights]

A good piano has three strings per treble note, so maybe you could have one piano string, one guitar string, and one other instrument string, and then separate dampeners for each type of string...

[@gadzoolks]

@@SqueezeboxOfDelights yeah i was thinking something like that. And maybe have a far right and far left pedal to shift the mallets over so they play the other strings

[@zakiboulfiza2257]

@@Mattiaskrantz i might say: half the piano is guitar strings and half is piano strings so you can like play a main melody with guitar strings and play piano chords with your left hand?

[@SToXC_.]

the guitar timber or any other instruments doesn't come only from the string used, guitar strings on a piano would sound just like a weird softened piano, because there s still a small hammer hitting the string, and not your fingers pinching it, which produces a much different sound.

[@AntoineHoubron]

Congratulations on reinventing the banjo

[@ghostnife9250]

The fucking first balloon guitar you made was so cool. I really liked the sound of it

[@SebMeul9]

Very professional with the briefcase guitar

[@Mattiaskrantz]

Hahaha

[@emmamcallister1743]

As a cello player I want to see a piano with strings from various string instruments that way they will have various lengths and a bigger range. Love your videos Mattias

[@Mattiaskrantz]

Interesting idea and thank you Emma!:)

[@lt3742]

Jesus is going to pass judgement soon. call on Him ! 😍😍😍

[@patback2067]

I had a similar thought about that a couple weeks ago. All the string instruments play in various ranges, so a piano with the strings of an instrument within that particular range would be pretty cool.

[@TheRazeryan]

this is a funny idea

[@claymoreroomba]

Beautiful design my guy, I love the design of it

[@alexlin3976]

Thank you for trying it out

[@Spanos28]

from italy ..i like kind of experiment and who take the best of his creative potenzial,so nice job!!

[@underlaidxbart]

If you put sulfur hexafluoride in your guitar, would it be a bass????

[@Mattiaskrantz]

I couldn’t buy it from Sweden unless I was a school😳

[@spectrumclaw6585]

Make a school, silly

[@Mattiaskrantz]

@@spectrumclaw6585 I could identify as one

[@spectrumclaw6585]

@@Mattiaskrantz hey, it's 2021

[@underlaidxbart]

@@Mattiaskrantz hey you're already cool, just missing the S and the H

[@tengkuadam1399]

I've broke so many guitar strings before. Here's my tip: New strings are brittle, older strings are more malleable. So the trick is you tighten it just a little bit (maybe instead of E you tune it to a B), the string would stretch itself out and get out of tune in a few minutes. Then you tighten it again. The string needs to ease in to the tension.

[@skaldlouiscyphre2453]

Weird, I've always just tuned new strings a whole step sharp then slacked them off a minute or two later. I can't remember the last time I broke a string.

[@MKDumas1981]

I stretch my new strings manually by pulling on them in the same motion that one would cast a fishing rod.

[@jonathanross6260]

So intriguing that your intro music sounds so much like Mark Rover’s theme music.

[@Cyoor]

For anyone interested in why this doesn't work: Strings are in air to begin with and its the change in speed of sound that changes the vibrations of the molecules. The wavelength of the sound is what we pick up as difference in pitch. When sound travels between different mediums the soundwave will shift by the ratio between what the speed of sound has in those medias. What we have here is: Speed of sound in air (where the strings are) --> Speed of sound in helium (Where the baloon is) --> Speed of sound in air (on the way to your ear) -->Ear The starting condition and the end condition is the same, so it will be the same. When you speak with helium in your lungs your vocal cords will be covered in that medium when you speak. Then it will transform to a different wavelength when it shifts to the normal air outside. Helium --> Air --> Ear

[@JoeMacC82]

Hey Mattias, thank you for uploading funny and entertaining content! In love it when KZbin tells me that you uploaded a new Video! Keep up the good work! Greetings from Luxemburg!

[@Mattiaskrantz]

Thank you for this epic comment🤝 love you

[@mikesrandomchannel]

Well I think your guitar with the handle is just lovely. And you can always tune all the strings to HEHEHE (German note names!), inhale a bunch of Helium and then just have fun anyway!!! And mad respect for posting the results despite it not going to plan. That puts you in like the top 10% of all researchers, since many just keep very quiet if their hunch doesn't play out...

[@Mattiaskrantz]

That’s a genius idea and thank you!!

[@lt3742]

Jesus is going to pass judgement soon. call on Him ! 😍😍😍

[@Sednas]

@@lt3742 shut up

[@rwe52496]

I think The only way to get the actual fundamental pitch higher would be to fill the entire room with helium, otherwise it’s only the overtones that go up in pitch because the string is still vibrating against regular air

[@slowfudgeballs9517]

The reason the balloon works, I think, is because you're basically vibrating the whole balloon once you connect it to the vibrating strings (transfer of vibration). You send sound waves out into the air with the balloon instead of the wood.

[@BCToby]

The frequency (pitch) is determined by the strings moving up and down. In order for the strings to change frequency to a higher pitch they would need to move faster either by increasing tension or reducing the atmosphere resistance(drag). Volume of the sound would affect how much vibration is transmitted from the strings to the air, this is where the body (balloon or wood etc.) would make a big difference. The body and resonance also determines where/how the sound is reflected and how the decay of the sound is shaped.

[@tomypreach]

It took 7 minutes to see the helium in a guitar.

[@cycythescienceguy]

I'm a music person, this is the third video of yours I have watched and to be honest, you are very unique and oddly enough, I have had all the questions that you test in your vids. Thank you for answering them Mattias!

[@MrStrongBro]

Oh my God! <a href="#" class="seekto" data-time="389">6:29</a> Andy McKee reference!! You rock dude. 😂

[@tonitouchberry6257]

You have tried steel?? Right??🤣😅🤣 That line and look, cracked me up!!!

[@flinkiklug6666]

<a href="#" class="seekto" data-time="54">0:54</a> is this a song Mark Rober used also? I like this song and my mind say wow there is a engenier if i hear the song

[@lucapaulson3679]

Read my mind

[@ehntals1394]

Heard the xylophone as you went full Mark Rober. And then a little Andy Mckee. A man of culture.

[@four-en-tee]

Forget the string breaking anxiety, i had balloon popping anxiety for most this video

[@billgr9892]

Wow it's really nice to see guitar prototypes that never really sold be put in to practice like this. You are great man

[@Mattiaskrantz]

Thank you and it was a fun video to make!

[@Stoney_Eagle]

A piano engineer trying to engineer a guitar... What could go wrong 🤣🤣 Needing safety glasses made me laugh haha

[@Mattiaskrantz]

🤣🤣😳

[@louisegogel7973]

05:12. Who needs safety glasses……. ooops

[@briaharris183]

Im scared of the strings and balloon popping you are risking everything 😬😬😬😬😬😂😂😂😂 great video and yesh dats a thicc balloon

[@joecooper1703]

The balloon guitar is cool, but I knew from the beginning it wasn't going to alter the pitch at all (though maybe a small difference in the resonance from the balloon). I mean to say you shouldn't be disappointed it didn't change the pitch; you made a cool guitar that's exceedingly unusual, and that all by itself is cool.

[@soljarka]

Put an electric guitar into a vacuum chamber. In theory it should be possible to adjust pitch by changing the air pressure (thus changing the density) inside. Or put an accoustic guirar into a helium chamber. Your voice becomes high pitched in helium because your vocal chords vibrate faster in a gas of lower density.

[@thatoneguy611]

But how would he play the guitar if it’s in a vacuum chamber?

[@NoLongerNull]

I’m glad I just discovered this channel It’s so much fun

[@Catywampus_Kerfuffle]

On that first attempt, it ended up making the tone brighter though. That's an interesting effect. Wondering if a heavier noble gas would give it a darker tone.

[@abcnz1]

Just subscribed!! 😁

[@Art1stical]

Everytime I see you posted a new video (because the little bell of my subscription tells me so :D), I know my day is fixed :) In terms of ideas, the only thing I can think of is making each hammer head on a piano be a tiny bow so it would strike the string as if it were a violin. I don't think it's possible, but if ever a person taught me ingenuity and perseverance can overcome any obstacle, it's you! I do think your videos are very encouraging and wholesome, and I wish you the best in whatever endeavor you decide to tackle next :D Greetings from Colombia!

[@Mattiaskrantz]

Thank you so much! Yeah I’ve been thinking about this bow piano. There’s actually some attempts on it but that would be using rotating wheels etc. 😄

[@EcstasyJesus]

@@Mattiaskrantz I think Da Vinci himself invented a keyboard instrument with rotating bow like thingies. He called it viola organista if I remember right

[@lt3742]

Jesus is going to pass judgement soon. call on Him ! 😍😍😍

[@pluribus_unum]

The physics of vibration, reverberation, harmonics and pitch are awesome and seemingly endlessly fascinating.

[@FiddleKat]

I wish you'd make a shirt of this playing with the balloon suitcase, so I could share it with my youngest students.

[@snurvy]

"Ukulelle" hmmm yes I see the swenglish slipping through

[@am-zm5lz]

Interesting. I think that as the strings are what produces the tone, changing the resonating body won't do much. Helium going through your vocal chords actually affects the speed at which they vibrate, but in this case it's like speaking regular air into a room of helium

[@danielcabral1387]

<a href="#" class="seekto" data-time="459">7:39</a> 😳😳

[@perrosroutter3925]

Gass

[@lyn10gaming]

Grass*

[@adriendecroy7254]

PItch is related to string length, tension, and mass, and air density. The reason your voice changes pitch, is because the vocal folds can move more quickly in a less dense medium which has less mass to move. So since the strings are still in air, nothing will change relating to pitch.

[@gowthamgunashekar7114]

I could easily tell you're a Svensk from your accent 😂 Then i read your bio. Du har ett fantastiskt kanal bror! :)

[@paybackjake7598]

Mark robber 😂 🤣 <a href="#" class="seekto" data-time="58">0:58</a>

[@lucapaulson3679]

U read my mind

[@freegl7511]

@@lucapaulson3679 our minds

[@bassguitarplayer09]

Blue wednesday

[@JCtheMusicMan_]

I learned as a bassist that I can practice without an amp by playing while leaning against the wall. If you find the sweet spot it resonates pretty well.

[@InspiringHowUCThat]

Amazing 🔥

[@user-cn6pz2lg1x]

I'd absolutely buy or build one of those and a pick up cool to say. A light guitar that sounds awesome is my dream.❤

[@inflatablesounds]

Very cool experiment! I like the idea of "hockey-stick" guitar, and inflatable pillow for resonance and sound damping. I had a theoretical idea of turning airbed to contrabass.

[@jan-of-finland]

Great video as always! :) The helium filled balloon actually acts mostly as a sound suppressor. Because the helium atoms are smaller, they move the surrounding air with less force than the air. Imagine it as smaller and lighter balls colliding to bigger balls, less momentum is transferred to the bigger balls with more mass. There's an interesting video about these helium's sound suppressing properties with experiments on Tech Ingredients channel. I'd recommend to check it out!

[@betsybetsy9996]

I know little of guitar tuning, but you are adorable.

[@sergiomdp2002]

The pitch of a guitar (or any string instrument) is determined by the frequency of vibration of the strings. This frequency is influenced by factors such as the tension and length of the string, in addition to the resistance of the surrounding medium. To alter this property using helium, you would need to surround the string with helium. Since helium is less dense than air, the string will experience reduced resistance, causing it to vibrate faster and produce a higher pitch. You could try placing (and playing) a guitar inside a vacuum chamber filled with helium; it should work.

[@Luca-fs5nf]

I think it’s because the guitar isn’t actually interacting with the helium gas, because the suitcase thingy has too thick plastic. You’d have to play it in a room full if helium for it to change the sound because the soundwaves would travel faster through the helium, but that would be pretty dangerous to be in. You could try putting a small balloon inside your guitar, popping it and then quickly strumming it, but I don’t think it’s entirely possible to experiment with this idea.

[@Joe_Yacketori]

The ambient conditions (i.e. the type of air) will never affect the fundamental pitch produced by a vibrating string unless the drag force became significant. No configuration with helium will cause the guitar to play higher. The reason helium makes our voices higher is because air is the medium that's causing our vocal chords to make sound. On a guitar, it's the pick that does that. Helium doesn't just make everything higher; there's a very specific mechanism wherein helium has that effect. That said, woodwind instruments could be much more interesting! After all, the gas vibrates the reed as it does for our vocal chords. Edit: I just thought about it some more, and I'm pretty sure helium would not make woodwind instruments sound higher. I realized that the reed is resonated by the air to vibrate at its own, intrinsic natural frequencies. Again, the gas isn't part of that equation - it's just an arbitrary excitation, maybe it has something to do with the system being at its lowest energy state while vibrating whenever fluid flow of certain parameters is moving past it. As for why vocal chords even get higher in helium, I can't even be certain anymore. Maybe vocal chords have mechanical properties such that the momentum of the gas molecules has a significant impact on pitch. Maybe this arises because they're really thin and more susceptible to gas? I'm just guessing now, let me know if anyone knows the answer.

[@MrXBT2000]

@@Joe_Yacketori It will affect the woodwind instruments - the frequency is given by the resonance in cavity following the reed - after all the tone is normally altered by changing the length of the resonance cavity typically by opening or closing off holes.

[@Joe_Yacketori]

@@MrXBT2000 Oh, cool! Thanks for the correction.