The Loudest Sound In The Quietest Room
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- Опубликовано: 12 июн 2023
- 3M delivers unique, science-based solutions at scale to help build a brighter future. See how 3M Science is shaping the future: bit.ly/3MxJamesYT
In this video, I traveled to 3M to see how silence is science. Watch to see how the quietest room is used to study how sound waves move, which helps build the sound-damping products we use every day.
Thanks to Davey for helping me out in this video! / @aprilanddaveyvlogs
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Who knows what I said in the reverberant chamber as I walked away from the camera?
🙂
okay so I am going to start talking then I am walking away from the camera
and you will notice that as I keep talking it gets more and more muffled
the further I get away from the camera
until eventually
you probably cannot hear what I am saying
the further I went to be from the camera you can not hear what I'm saying
it's echo that's heard ..
it's the sound waves that ........ ( and maybe one more statement idk )
I heard up to "until eventually".
Haha 😂.
I lost it.
And when you reached the end of the room, the point where you appeared to touch the wall, the sentences you said from that point literally seemed hilarious.
I couldn't stop laughing. Whatever you were saying, I just heard Grrahhh! Grahhh! Ghoghh!. 😂
"Okay so I'm gonna start talking, and then I'm gonna walk away from the camera. And you'll notice that as I keep talking, it gets more and more muffled as I get away from the camera, until eventually you probably can't even hear what I'm saying. The further away I get from the camera, then you can't really hear what I'm saying cause the echo from the room reflects all sounds off of the walls and the sound ??? ??? ??? so you can't even hear what I'm saying."
I remember how weird it felt when I first tried noise cancelling headphones. Instantly felt like all my sinuses had plugged up!
Me right now
Oh so that's what's wrong with me too.. The new version of my earphones seemed to cause be nausea right from the moment I put it on, and it's likely because of improvised noise cancellation. I should switch to on ears maybe 🙂.
I have never tried those. Though I wish to.
Multiply that feeling by a factor of ten and you will begin to get some idea of what these chambers are like.
@@DTLRR Once you get used to it, they're amazing! Highly recommended.
That balloon pop was unexpectedly hilarious. It went from a gunshot loud reverberating bang in the first room to a pathetic tiny blip in the second.
BOOM SHUCK A LUCKA!
..then...
pwit
@@cryptfire3158butt
Pretty sure the closest you could get to painting the quiest room, with the blackest paint, would be a sensory deprivation chamber
Exactly what I thought first, that would be a torture chamber.
It's reassuring to know I'm not the only one
Or you could just close the door and turn off the lights lol
I want anty gravity room, anti electro-magnetic field room and anti thought, than put all 5 togheter with and close with me inside.
@@machekazzoyou would literally go insane within a few hours
That weird empty pressure feeling also happens when you put your ear really close to an inflated balloon.
As you put your ear next to an inflated balloon you block all direct pressure waves traveling through the air and only intersect the pressure waves traveling through the balloon, its different then the waves in that room which is designed to essentially collapse waves traveling through the air through de constructive interference patterns and more or less only allow you to hear your voice through the vibrations of your own bone structure hence why he said it feels like he's putting his fingers in his ears.
Also if you put your head in a bucket.
@@peacemekka Especially if it's full of water :)
That's fascinating. I've seen articles people have written saying that you can't spend more than a few minutes in one of those super quiet rooms without becoming really bothered and some people can go crazy from the crushing silence. It doesn't seem (to me) like it would be a big deal really just being in a real quiet room, just interesting and different.
Really interesting video - Thanks for this!
I can outlast anybody
Yes I actually got dizzy and nauseous after a few minutes. But it went away after I went in and out of the rooms over the next hour.
I've heard that if you sit in silence in those rooms you can hear your own guts moving
Absolute silence is a lot more silent than you can think it is if you've never experienced it
Even if you're alone in the middle of a field in the middle of nowhere, you still have some sounds going on around you. Air brushing against things makes sound, and overall just the air carrying some sound waves even tho they might be at 1dB by the time they get to your ear, it's still "something"
This room gives you absolutely nothing, you can only hear the sounds you make
I use to work in a quiet rooms. First time, I got sick after about 5 mins and puked.
After awhile I could spend up to 45mins, but it never really felt good.
Yes you could hear your heart beat inside your ears if you concentrated on it.
I think that "deafening silence" feeling is caused by your brain's expectation to hear reflections from the environment, and not hearing it. That's the VOID you feel. It's a kind of claustrophobia, induced by the abnormal surroundings.
it is mainly because our ear drums are constantly hit with sounds waves but when we are in silence with no sound there is severe pressure on ear drums that they are not accustomed to, we have a silent room in one of our acoustic lab and if we stay silent for few hours it can case permanent ear damage
@@iWillRun_ I can't believe that at all. The net pressure on the eardrum is constantly shifting. That's why we have Eustachian tubes, to relieve that pressure. Why would there be MORE net pressure than normal in silence? It makes no sense. Like, if that were the case, why doesn't flying in a plane (large altitude shifts) or deep diving make you deaf? That's a huge pressure bias. But again, why would it create a pressure bias anyway? Why wouldn't that happen if you wear noise-cancelling headphones? Further, there is always vibrations at the eardrum, due to body noise.
Nope, no sense at all, from any angle.
2:11 when you high asf and people talk around you
Walking away from the camera in the super echo chamber is such an incredible effect, I want to use that for a game or movie or something
Any reverb device/plugin can do the trick just by adjusting mix/decay parameters. Btw, you can also sample the sound of the balloon popping in this reverb room and use it as an impulse response in any sort of sound convolver s, so that you can exactly replicate the character of the reverb this room has. There are many possibilities and ways to do it digitally
Shit sounds like auditory illusions
@@makandalp fr😭😂
@@newheadstart mood, i love it
As someone with non stop tinnitus, i wonder how it would sound like being in that super quiet room
Agony I imagine
There'll be no sound surrounding you, just the ringing sound in your head.
Just blocking my ears gently with my palms is enough to cause my tinnitus to flare up and be more noticeable.
This room will probably make it 10x worse.
Screaming tinnitus
You’ll go crazy. Ambient sound helps mask tinnitus. Without the ambient sounds, you’re mind will try to fill the void.
I've been in an anechoic chamber when I was younger. That room is just... oppressively quiet. What they didn't show was if you are not facing the person you're speaking to...they won't hear you even from three feet away.
I was waiting for him to show what it sounds like to talk while not facing the microphone in that room. But he didn't try it.
Because of lavaliers @@aouerfelli
The Worlds Quietest Room really takes “Quiet people have the loudest minds” to a whole new level.
Just for reference, most gunshots are far louder than 143dB, generally ranging from 155+ all the way to almost 170, depending on caliber and barrel length. The 140 range is actually closer to what a suppressed (silenced) 5.56x45mm rifle would generally meter. Unless they're chambered for relatively small cartridges, "silenced" guns are usually quite loud, loud enough that hearing protection is still recommended. Hope this helps. Great video!
Gunshots are extremely different from oscillating sound waves that comprise the vast majority of what we hear though. The main bang of a gunshot is a shockwave, which is a single positive (increasing) pressure inflection followed by a single low pressure inflection (or even a brief vacuum if it's above 194dB spl). Normal sound waves are oscillating air molecules that correspond to rapid higher and lower pressure inflections that go on for extended periods of time compared to a shockwave. If that whistile really is 143dB SPL (which I kinda doubt but maybe) at the frequency it's pumping out it would instantly permanently damage your hearing. Also it depends on the distance, since every time you double the distance from the source you lose 6.02dB SPL
@@darrylpioch2055 While a gunshot is indeed an impulse noise, it holds its peak anywhere from 3-5 milliseconds. Much like how the whistle can be blown for longer or shorter at relatively similar intensities, a gunshot can hold its peak SPL for varying durations, dependent mainly on powder charge, burn rate, and muzzle device. This is why a .308 Winchester and a .300 Win Mag rifle can both meter at ~168dB peak even though anyone present will tell you that the latter sounds significantly louder.
Most gunshot testing in the U.S. is conducted by its domestic suppressor industry, and is typically done in accordance with the Army Research Laboratory's MIL-STD-1474D. This specifies that the microphone be fixed 1M to the right of the muzzle, although more and more companies and independent testers are also metering at the shooter's right ear as suppressor development has shifted to focusing on the benefits to the user rather than purely on downrange sound signature. The shockwave propagated by a supersonic bullet is itself around 140dB and--along with bullet impact--becomes the predominant sound at the target location. Past a certain point, attempting to get a centerfire rifle "quieter" becomes an exercise in diminishing returns.
@@shootinbruin3614 1m to the right of the muzzle makes sense for a definitive metering. Speakers and subwoofers are usually spl metered at 1m with the mic directly aimed at the cabinet. I didn't know gunshots hold such a long peak but that would make sense since there's still chamber pressure after the bullet leaves the end of the barrel. Maybe there's more physics to it I'm not too educated on
Also side note: the human ear has very different sensitivities at different frequencies and they also react differently to impulses/shockwaves. There's a peak plateu from around 2KHz to 5KHz and under 2K there's a gradual roll off that gets more dramatic the lower you go. So basically we don't hear anywhere close to flat. An example of it is people can give out 160dB+ bass demos at a car audio competition all day and not suffer any hearing loss. To the point where the physical pain is way more uncomfortable than the ear pain. At subsonic frequencies that 160dB is no big deal. If however that 160dB was at 3KHz, it would instantly and permanently make a person deaf. Same for the front row of a concert; if you're at the front but there's no full range fills anywere near you you're probably good, but when you're in front of a stack of subs with a full range cab on top pointed straight at you from a few feet away that's a big big problem lol
What?
Thanks for your comments guys. I was actually wondering about that.
You should do more of these visits. I love it. And , 4:24 editor needs a raise
Such editing skills, such pro.
I think they got him from the Omeleto movie channels. It's gotta be.
@@Yezpahr omeleto doesnt actually make the movies they just promote them
sounds like you're the editor
happy to see that this channel has grown this much in few years, from homemade science experiments to visiting companies
At 2:46 that balloon popping almost sounded just like a Gun shot! XD
Hahaha at 3:29 "Puts safety glass on first" before blowing the air horn
The anechoic chamber is sick. The room I mix in is anechoic but not THAT anechoic haha. Tracking vocals or electric guitar in there or mixing in it on high end monitors would be amazing. Once you get used to working in that kind of acoustic environment nothing comes close to it.
Also the reverb chamber perfectly demonstrated a fundamental property of recording; the further you place the mic from the source, the lower the ratio of source noise to room noise becomes
1:55 Me descending to the pits of hell
4:25 *"Welcome to the rice fields mothertrucker"*
I used to sort an archive room once. Many stalls filled with paper. Quietest room I’ve ever been at. Instead of “feeing of pressure” on my ears I rather felt that the pressure I wasn’t even aware of was finally gone, it was just heaven. Sorting the archive was quite meditative too, loved it. I would compare the feeling with what it feels like using a high refresh rate screen after you are used to 60Hz: the screen is just easier to look at and feels more natural, you feel the lack of pressure on the eyes you didn’t suspect.
Acoustics are so cool!
There’s actually a spot in my apartment complex, where you can hear a whisper about 25-30’ away in another specific area.
that's the ghosts
Do you have an ellipsoid shaped apartment?
The quiet of the desert is one of my favorite places. I think i would love a bedroom with some of that sounds absorbing stuff. Not so much that i hear my blood pumping through my body but just before that much would be great
Bro, thanks for the videos. I enjoy these when I watch, never disappointed with this channel.
That quite room is an *insane* place to visit! I'd like to go in there!
THE VOICES AHHH THEY WON'T STOP TALKING TO ME
@@Cyantist13 Who are you, professional wrestler Randy Orton? 😂😂👍👍
You can get a pretty similar effect with active noise canceling headphones.
@@brfisher1123schizophrenia
Not insane
The closest I've ever gotten to an anechoic "chamber" was standing in the middle of BC Place Stadium back when it still had it's inflated bubble roof. It was definitely a weird sensation having all my sounds just vanish with no discernible echoes or reverb.
Watching this with tinnitus is probably not the best, but that is so interesting.
I felt this weird pressure between some clips and it’s super cool it correlates like that
Great stuff!!
Love your channel!!
Your audio recording in the anechoic chamber sounds fantastic!
Thanks for breaking my headphones😂
That's on you
@@hexereylame
@@hexereyyou be like: 💩
They must be cheap then, go get better ones.
that whistle 😂😂😂 and the airhorn
The reverb chamber reminded me of an urbex site I used to visit - an old paper mill in Baldwinville MA, long since demolished. I crawled through a maintenance hatch into one of the pulping vats - a vertically oriented cylinder maybe 15 ft in dia & 30 ft high, lined with some kind of ceramic tile. The acoustics were similar to those of your reverb chamber, though nowhere near as extreme. I wish I'd had my Tascam recorder with me to capture the sound.
I've been in an anechoic chamber at the IBM plant in Boulder, CO, where they measured equipment acoustical noise. If someone turns away from you and talks you almost can't hear them (this was in the '70's when they still manufactured there).
4:55 Next level torturing😂
no one:
school assemblies: 2:07
Oh my god this is incredible!! Thank you!!!!!🎉
Thank you so much for sharing knowledge
3:56 earphone warning
4:01 Not using a calibrated tool in this place is like blasphemy.
Perfect!
I worked in the oil industry and entered countless bizarre environments: gas spheres, storage tanks, the inside of the legs of sea platforms. It's incredible, impressive, how the sound behaves. In the sphere, reverberation is continuous and difficult to minimize.
thast so cool,was thinking about the same thing abuot painting the quiet room dark but then thought what it would be like to paint the reverb room dark, hearing all that echo in the darkness would be even more confusing
If you paint it with musou black, you also have to put in a submersion tank so you can also delete gravity. The ultimate sensory deprivation tank.
I guess water, because it conducts sounds much better, would spoil the quietness quality. So it's better to put this room into orbit, into microgravity.
And make the water exactly body temp
Having flashbacks to school auditoriums in the noisy room.
I'm curious about the silent room though, I am disconcerted when my house is too quiet so Im guessing that would be a quick stay
If your auditorium has bad reverb, maybe your school should get acoustic treatment
@MineCat to be fair it was also the gym, think it only served double duty because it was the only space big enough to get a bunch of people into (but there were stages in the two that I can think of, so they must have been intended to be multi-use)
Gymatoriums have thankfully gone out of fashion as schools now make high quality gyms and high quality auditoriums separate from each other
That was way cool and how fun to have my two boys go together on such an amazing adventure
At Firestone's research lab, we had an anechoic chamber big enough to test semi-tractors on a dynamometer. Working in the chamber by yourself was disorienting when nothing was in it. Workers often brought a portable radio and put it in the corner so it would keep them oriented. During setups, it was so quiet that you could hear your breathing, heart pumping, bones and joints cracking, and other body sounds. We used the chamber to measure tire noise when the tractor was running at low and high speeds. A truck can emit upwards of 1 KW of sound power. In other words, more than 1 horsepower was used (wasted) just to produce sound!
I'm surprised because I'm sure a set of 1kw loudspeakers with high efficiency horns would be louder than the truck. Is that 1kw acoustic output - which is nearly 140dB from a meter away in all directions - or an inefficient loss of energy of which some is converted to sound and the rest to heat?
Imagine if they quietest room was painted with the darkest paint
and partially filled with heavily salted water so you can truly float in the void.... sounds like heaven to sleep in lol
Why don't you ask 3M about PFAS and how they knew about the health risks way back in the 1970s?
This is all kinds of cool and interesting!
Having been to the innovation center in a couple of years, love that place!
Imagine being able to sleep for as long as i want - without leaf blowers, beeping garbage trucks, car alarms, screaming crying neighbor children on the porch - i don't care if it causes insanity; it would be paradise in comparison.
Tried some noise cancelling earbuds? Heck, some regular earplugs might do the trick.
Of course I don't know your situation, so forgive me for coming with such a simplistic suggestion. You may have kids you need to keep your ears trained on (which may actually impede your sleep too, always being alert, even when asleep).
@@Koowluh it usually gets through the earplugs. I don't bother sleeping without them even though my place is quiet because I don't want a tiny sound to wake me or startle me. I no joke had a dream about a clock ticking and woke to the sound of my clock ticking! It also disproved that time moved faster or slower in dreams, because the clock had a constant tempo before and after waking.
@@TimpBizkitI slept with my noise cancelling headphones on one occasion lol felt weird but they made my ears hurt.
0:59 This is the quietest Room where you can even hear the Cameraman speaking
Thank you for making this video. I do agree 3M is one of the most innovative companies in the world.
Absolutely fascinating
Other than some of their environmental controversies, 3M is pretty amazing. I used to work in a fairly small adhesives factory and sometimes we'd make some pretty neat small batch stuff that we'd send off to 3M to test before they would start their own production line.
The PFAS stuff still grinds my gears. I put them in the same basket as Monsanto/Bayer and Dow for what they do
Care to explain?? What happened
I once recorded a video in an anechoic chamber like that, but now you made me want to try an echochamber :O
Amazing video as always.
The anechoic chamber would be a step beyond the recording studios I've been in when I was decades younger. I'm afraid that my age today, it would have my tinnitis screaming bloody murder.
I've experienced the equivalent of the 'dark' room several times, being in a cavern with no introduced light sources, just for the experience of absolute darkness. I don't think I'd enjoy that for more than a few moments. The caverns were also very quiet, with only occasional water drops that could be heard from a surprising distance. You notice things like the sounds your clothes make when you move, and your own heartbeat.
I have tinnitus, and I've been in an anechoic chamber. And yeah, it gives you lots of opportunity to contemplate tinnitus.
You wouldn't wanna record most things in an anechoic chamber. Vocals and electric guitar cabs would benefit from it in some cases but certainly not drums or acoustic instruments. Drums especially would sound bloody awful in there lol
Wow! I never even thought of that! I have mild to severe tinnitus now, but didn’t when I was in that room decades ago!
I don’t think I’d appreciate it these days!!
@@darrylpioch2055 Recording studios surely can't be called anechoic. They do have sound dampening surfaces all around though. Cozy.
@@Vector_Ze it depends on the purpose of the room. A room for tracking definitely no. At least the mix position in a control room should be though since you don't want room bias. Mixing in an anechoic environment is amazing. A lot easier to EQ and balance faders and make mix decisions in general
4:37 that gets me an idea... could an air itself give off some kind of echo too? I mean, the sound pressure waves reflecting back from the gas molecules in the air 😅😅 maybe sounds stupid but ... I am wondering anyway..
That was pretty cool and as to your pointing out that the room which is sound proof being like the :oi Dr of space, That's exactly what I was thinking especially if you painted the shade of black that you were talking about.
Minnesota and 3M represent!! 💪💪💪
The reverberation chamber sounds just like the gym in my school
I'm pretty sure it's like that with any large building or structure willth a tall ceiling, malls, school gyms, etc. Or tunnels lol
@@TheSilverShadow17 the joke is hyperbole
it would be soo crazy if we could build a reverberation chamber but with mirrors on the walls so that it would reflect light AND sound
As always an excellent video.
In the 80s at Michigan Tech, there was a physics lab with a quiet "alcove" (it wasn't a full room, but 3 walls and the floor and ceiling were sound absorbing). Just stepping inside the space made you felt as if you had ear plugs in. It was fun to step into it but you wanted to get out quickly. It was a weird sensation.
I went into a sound absorbing room a long time ago. A very weird sensation. I could actually hear my own heart beat. Maybe due to the blood pulsing through veins near my ears.
Very silent room, make it very black, and then add that contraception thing that subtracts your ability to feel(it’s that tub filled with salt water, I forgot what it was called), and there you have it, space but it isn’t cold(although the tub may reverberate some sounds(?)).
Oh yes I saw some of those videos, I’m pretty sure it’s called a sensory deprivation but your right.
A sensory deprivation chamber, they make some people freak out saying things like i could clearly hear my heart beating... honestly id love to sleep in this set up, i love silence and utter dark to sleep in lol
Very cool! Congrats!
What an amazing video Sir!
You need to build a musou black anechoic chamber 😱
4:50
After you build that room, you have to stick Andy Dufresne in there for two months. IYKYK
I want all these rooms you built!
I remember seen this on another channel (chalenge based). But seen this for science gives it a different take. The loudest room, didn't know it could do that.
Challenge*
Ryan Trahan?
Baloon pop in the silent room sounds like the hit sound from call of duty lmao 3:05
I want to sleep in this quiet room so badly, i know it gets kinda very weird cause you're not used to complete silence but I really wanna try something like this someday
I don't have any other words except how stinking cool!
If you got trapped in the bottom of the quietest room, no one would hear you scream 😜
this was a cool experience to watch! Thanks for sharing!
4:32 Snow gets you pretty close...
You don't even need to paint the anechoic chamber black to experience no sound and no light, the door seals so well that there's no ambient light that gets in and they can turn of the light and it's pitch black! As done by Verritasium and probably others!
I think 3m is the highest end sponsor I've ever seen on RUclips. Crazy.
I remember that quiet room from Kyle Hill's video a couple years ago!
2:00 this room is perfect for people who like making excuses when they mess up
You else wants to toot in the loud room?
Me
thanks for this :)
Thanks for your sharing
Did 3M mention how their earplugs don't really work and got sued by the US military for causing hearing loss of soliders in the battlefield?
But the real question is:
If a tree fell in the room and there was no one around to hear it... Would it still make noise...?
yeah of course, noise are just pressaure waves from the atoms interacting when it falls, the atoms will still itnerct and create those preasure waves if we were there or not, thats just one form of sense though, it could be producing other forms , gravitiational waves, quantum fluctuations, no matter how small it could be making all kinds of noise we arent able to pick up. So the answer tothe question is yes, its would make a noise, and is probably making more noises we cant hear.
@@mikejones-vd3fg ok, but it's just a joke 👍
More importantly, if a tree fell in the room, and there was no one around to hear it, and it crushed a mime, would anyone care?
@@ErickC ah! The soup thickens!
@@magnumsalyer hehe i know i just couldnt resist
That's just insane!
The reverberating room is a perfect place to do the "oh no im in the void, oh hey! A human. So what now?" Kind of situation or even do a choir which would be cool.
2:05 literally my Sports hall in my school.
The quitest room can definitely make you go crazy in a matter of seconds. Probably I would survive there. I'm the quietest person around here, so that kinda makes sense.
I'm an only child. I can beat the record. I bet money on it.
i was walking on a shop once and all of a sudden everything got dead silent, and then instantly i started feeling sick for some reason
Same but when I'm alone.
How did you write such a big comment so quickly?
Good watch ty.
Would love to see ya do a video on viscous to molecular vacuum drag. Like on a 16mm vs 25mm vacuum system pipe.
3:35 lol this part really cracked me up
3:17 That’s an RT60 of like 7-8 seconds, that’s almost twice the length of your average cathedral!
That’s very interesting how sound work with different things
Vary cool. I would like to build a sound absorbing room, but now I am thinking a pointy mountain top might work. I did notice that affect of little sound bounce back when at the beach and grassy fields.
Turn on CC from 1:55 - it gives up at the end with just [music] :-)
0:03 - they played some death metal.
That's cool! I'm building an anechoic chamber in my home at the moment. Been waiting a long time to do it for my job of speaker building. Inspired by Tech Ingredients.
Action Lab is rocking that Samurai Man-Bun. Nice.
2:25 now it seems it’s time to paint the worlds quietest room in Musou black to make it the darkest quietest room
Update… suppose I got ahead of myself because you said that later in the video
Wouldn’t be possible