this is after you guys spent eight hours cable managing this maybe our server
room here at the lab looks like an absolute cluster
fine but beneath its ugly facade a
shockingly well-oiled machines taking form quietly humming did I say quietly
because this space next to it for our social media team is completely unusable
even with the door closed I mean we've
solved some of the problems since the last progress update for example we
sealed this Gap in the wall that was bothering our Mac people our bfcs or box
fan cooling system has been replaced by 15
000 watts of cooling capacity and if you just tilt the camera down a little bit
the cable management has actually improved yeah but it's freaking loud and
we don't even have the really loud equipment in there yet
now you guys criticized me pretty hard when I DIY sound dead into the studio
server room and well I get it it wasn't
pretty but it worked shockingly well and it isn't a fire hazard Reddit though
that doesn't mean that we're just going to do the same thing again our DIY
philosophy isn't changing but we're gonna do it way better this time and
we'll be doing the entire room for less than two grand which sounds like a lot
of money because it is but compared to the cost of a professional solution it's
a steal in the original server room we used recycled denim insulation as our
sound absorbing material and that stuff worked great but it's on the more
expensive side It's tricky to Source locally and it is a pain in the scrotum
to work with so this time we're going to be using a few different materials first
up is a layer of 3 8 inch OSB or
oriented strand board this is a really inexpensive wood sheet product that we
already put on the walls to make mounting our installation easier if we
hadn't done this what we could have done is try to hit studs or use drywall
anchors but that would have made the process take forever unless we just
didn't worry about any of that and just hoped our nails would stick into the
drywall next up we're adding a layer of what's called sonopan this stuff is
super cool and I wish I'd known about it when we did my theater room it's a
recycled wood sound insulation material that's unfortunately only really easily
available in Canada it's kind of like if MDF and fiberglass insulation had a baby
but in spite of the fact that it's practically made of sawdust it's still
strong enough that you can screw it onto the wall with drywall screws if the goal
is to eliminate Reflections within the room this might not be the best product
for you it's a very dense material but if the goal is to prevent sound from
escaping the room this be your guy
and this ain't hurting things because our goal though is to both stop sound
from escaping the room and also to eliminate Reflections which helps keep
sound from escaping the room once the sauna pan is on we're gonna
basically do what I did last time but way better first up instead of ultra
touch denim batting we've gone with rockwool safe and sound which is a sound
specific insulation material that's meant for the interior walls of houses
yeah Linus the interior of walls why
didn't you put it in of course I thought of that it's already in the inside it's
still loud we're adding more and I'm adding this Segway to our sponsor build
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your dream gaming rig today where do we start a baseline loudness sound pressure
level is measured in DB but there are different kinds of DBS you have DBA you
have DBC the A and the C are filters and
they exclude some part of the spectrum from the calculation so we want DBC
because we care about this broad frequency we're going to get both of
them first we want to see how how much noise we have in different parts of the
spectrum for a few seconds we have to be quiet!
impossible
this is the spectrum of the noise we have quite a bit of noise at 120 hertz
which is the sound of the Transformer upstairs but the rest of the noise is
actually pretty uniform throughout the Spectrum maybe it's a bit less in the
triple range but you have a lot of noise in the bass a lot of noise in the mid-range and this is what we would
describe as like a white noise yes so so why Broadband noise which if you have
all of the noise at the same level enough at all frequencies you get white
noise but even and white noise is annoying if it's loud enough and what
we're looking at is what about anywhere from 55 to 60 decibels yeah so the
overall numbers that I'm getting is 65.2
DBC and 53.8 DBA but again we care about
DBC more because we have a quite a bit of noise in the bass range as well okay
now that would make for a pretty unpleasant working environment yes for
comparison here's Jake's desk so green is here red was downstairs a bit more
noise in the base range here this is going to be less audible it's going to be more Rumble okay because that's our
HVAC right yep DBC here is actually louder it is 67.5 downstairs was 65.2
but DBA is a lot quieter here it's 43.3
DBA here the low range noise is more like Rumble so it's less less bothersome
this is more annoying from an evolutionary standpoint like we're tuned
to hear this range way more again for first speech on dialogue yes got it last
time around cancellation with long nails through the
outer duveteen at the end to attack both
my cloth and my insulation onto the wall and while it's mostly intact all these
years later we've ended up having to do a fair bit of red green engineering to
keep everything happy so we went back to the drawing board and designed our own
custom insulation holding plates inspired by the plastic washers they use
when sound deadening some music studios we even added teeth because it makes the
rock wall stick a little better oh that's cool they're 3D printed yeah each
plate gets an oversized number 10 washer and a four inch wood screw
then we just hold the rock wall up
and it's just long enough to reach through our sauna pen into our OSB
without mushing down our insulation too much that's not something we want then
like last time we're going to be using duvetine to keep the insulation from
shedding all over the room and clogging up our servers all these years later
it's still one of the cheapest fire retardant Fabrics that we could get our
hands on and since it has some thickness to it there's a chance it could help
contribute to our sound deadening I really don't think so anyway the plan is
to use some custom hanger plates that we also 3D printed to hold it up to the
ceiling then we're going to use some of the super strong magnets that are going
to be part of our upcoming Cable Management arches and for the walls
we're basically just going to put down the duvetine stick these magnets to our
oversized washers and Bob's your uncle but first we need to do some prep most
of the installation we're using is pretty good about not shedding but we're
definitely going to want to cover up some of the non-essential equipment that's not running in the rack so it
doesn't get so dusty garbage big
and some tape foreign
go down the side of that piece now oh
you're already on it look at you go don't worry about it it's sealing to the
wall worry about the face yeah now between each panel you can see Jamie is
using some goop this is called acoustic seal it's kind of like a butyl rubber
that doesn't really ever dry it sucks it sucks and you can see he's wearing
gloves it's because it's incredibly messy if you get this on your hands like
that's the the cheese pull you don't want sonapan recommends using this to
improve the effectiveness by filling all of the gaps between the sheets but we
don't technically have to use it it's just that we're going through all this effort already so adding 30 seconds to
goop well 30 seconds of Jamie was a little faster but 30 seconds to goop uh
it's worth it I do really like screwing
it's a very important art form the Sona pan doesn't shed much when it's
just sitting there but when you're bringing it into the room and like cutting holes and trying to tuck it into
tight spots it starts to shed a lot so
the air in here was getting kind of crusty and we devised taking this
furnace filter and putting it on the back of this box fan to try to pick up a
bunch of the the dust I guess and it's starting to go green can you see
oh that's a lot of product the only
redeeming quality about using this stuff is it doesn't really dry so if you put
this up here and we put this sheet on in like an hour it's still going to be
pretty much just as Supple as it is right now while the other guys are
working on finishing up the Sona pan I'm installing a door seal on this door but
the real secret is this drop seal it mounts on the door itself and when you
shut the door this little pin pushes in
there's the seal down when you open the door it goes back in
this is really starting to feel like when you're drilling into a wall and
it's not going anywhere and then you find out you've been drilling into a
water pipe yeah
the maximum Gap this seal can cover is just over 20 millimeters and I just
measured the bottom of this door is about 13 or 14 millimeters Gap so we
have a bunch of extra playroom that means I can mount this just flush with
the bottom of the door thank you
I've set that where I think it needs to go so when we shut the door it pushes
that pin in which pushes the seal down so in theory
cool well it sounds like a BMW nothing
it's a metal door so we have to use self-tappers like this that drill into the door and it's a little more time
consuming but
it looks like a room out of a horror movie right like some bad stuff is
happening in here yeah the results though and
oh my God it's so much quieter it's still mostly through the door so I think
what I should do is put another layer of the green stuff and then with the rock
wall I think it'll be pretty good well the DBC number hasn't changed because
we're still dominated by the 120 hertz sound from the Transformer you heard it
here first I'm dominated but the DBA number has gone down from 54 DBA to 49
DBA and this is what it looks like so
pretty similar to Jake's desk we do have a solution for the Transformer that we're going to buy these rubber
isolating pucks and put them underneath because they're hard mounted it's a
resonance thing you can tell just from the sound of it yeah there's like
concrete and it's just bolted to it it's like giant concrete speaker Linus was
hyping up this bandsaw but Alex said it's really easy to cut it like this so
let's see wow that cut through it like it wasn't even there
as much as having a window to the outside in your server room is kind of
awesome it's not very good for sound and not very good for security Now to fix
that there is a big set of metal bars that go in front of here but we also
want to sound isolate this a little bit because this reverberates back really
hard what we're going to do is stuff rock wall behind the bars and then put
the bars in place I put Rockwall on the bottom the top piece of the window I was
thinking I'd just leave open because having a little bit of light is
kind of nice
hey watch it all right should we put duvetine behind the bar
can you measure the height and add three inches on either side
there you go cameraman
oh
thin dues
I love just like every time I see Dan I'm like what is wrong with him but like
in the best way oh this stuff Cuts wonderfully
wow it's like paper
so many amazing materials we're using
in retrospect probably should have cleaned the Windows before we put the bar back on well you know I don't want
it to look like but this is all stuff that I put on
there myself so I'm just having fun being a glorified garbage can
yeah look at how much better the window looks we've pretty much finished every
last piece of soda pan there's a couple around the HVAC unit but it might need
to get service so we're leaving those for now and it's finally time for rock wall we're trying to plan out the best
way to do it and because the rock wall is roughly four feet by two feet and
these sheets are roughly four feet wide we're thinking we can place them
vertically here and vertically here and then on the top we twist them sideways
and that should fill most of the gap
15 minutes and we've already got that whole back wall done and this wall
almost done this is way faster than hanging up the green
stuff and to be honest these little hangers are working
beautifully I'm actually stoked every
part of this project so far has gone pretty close to Mint aside from a little
bit of a mess up there but that's fine it looks good now though right I like the natural light so yeah I cut it
perfectly right amazing see like didn't even screw up at all I didn't actually I
left extra so it would butt up with this nicely
these are the worst scissors ever
oh look at that man most of the hair
that I cut off has nothing in it I mean you can't look any worse than you do if
this piece feels funny okay that one's good oh there's a lot in
that one yeah The Rock bowl is basically
done finally oh my gosh this is like almost
the end of day two at let's put some duveteen on time we 3D printed some
little washer plate things Alex has got one in his mouth right there to hold the
duveteen on a little bit those are going to go into the ceiling and then it
should just hang down we'll put the magnets on and tuck it in the bottom all
right I guess it's time to go get Sam and measure how much of a difference
this rockwool makes it's wild because no matter how many times I experience this
it never fails to weird me out as soon
as you put this less dense absorbing material on the wall
it's like you can only hear the server coming from that side and then this side
is just quiet and it is the rack itself is way quieter like the sound level in
here is like feels like half of what it was before anyway let's fire it up so
that all the exact same servers are running is when we tested before and
let's get our after measurement I haven't told Jake but now what we got to
do is treat the whole studio like this right
that's still very impressive I mean I
already know the answer because I can hear it with my ears but please do
quantify I haven't measured it yet so we're going to find out together let's
let's be quiet! for like a few seconds
I've been really funny to slap them in the nuts
all right well the first number we had was 53.8 DBA the second number was 49.1
DBA the last number is 47.3 DBA so
actually the wine the wine is pretty much did get rid of the wine because
because curve going
that was annoying and
five to almost 45 yeah and you said 10 decibels is roughly half perceptually
it's half as loud yeah yeah so this this
looks like a pretty subtle change but because it's right in that
annoying it is
it's a huge difference and it affects the office side of things too
that's a lot better to be clear this door is not really treated yet yeah it's
going to be even better it doesn't have a proper seal on it it doesn't even have
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the link down below if you guys enjoyed this video you might also enjoy the time
that I did this by myself with worse tools worse materials and in a more
cramped space it was truly one of the most awful working experiences I've ever
had this was not that bad my arms are a little itchy you want some nah thanks