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00:00:01,101 --> 00:00:03,701
CHARLIE: Hey guys! Charlie
here, you know my sister, Kirby.
KIRBY: Hey guys!
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00:00:03,770 --> 00:00:06,540
CHARLIE: Weird but True,
did you know the world's first
digital recording studio was
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00:00:06,606 --> 00:00:09,076
built right here in
Minneapolis, Minnesota?
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00:00:09,142 --> 00:00:13,052
And you hear that? Me either.
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00:00:13,113 --> 00:00:16,083
This is the quietest
place in the whole world.
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00:00:16,149 --> 00:00:18,119
KIRBY: It's time
for Weird but True!
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00:00:22,589 --> 00:00:26,889
(theme music plays)
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00:00:38,505 --> 00:00:41,435
CHARLIE: And that just
about wraps things up
for today's episode,
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00:00:41,508 --> 00:00:47,008
a quick
shout out to our sponsor,
Bo Patrevia's Encyclopedias.
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00:00:47,080 --> 00:00:50,820
KIRBY: There's no
Encyclopedia, like a Patrevia.
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00:00:50,884 --> 00:00:52,494
CHARLIE: I'm Kirby's
brother, Charlie.
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00:00:52,552 --> 00:00:54,252
KIRBY: And I'm
Charlie's sister, Kirby.
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00:00:54,320 --> 00:00:57,660
CHARLIE: We'll see
you on the next podcast
episode of "Crafternoons!"
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00:00:57,724 --> 00:01:00,234
Keep craftin' out there.
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00:01:00,293 --> 00:01:02,633
KIRBY: Well, that
was a disaster!
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00:01:02,695 --> 00:01:05,665
CHARLIE: Hey, guys. Glad
you're here, we're having
a little trouble today.
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00:01:05,732 --> 00:01:07,202
KIRBY: A lot of trouble.
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00:01:07,267 --> 00:01:08,867
CHARLIE: We started
a new podcast.
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00:01:08,935 --> 00:01:13,865
"Crafternoons," where we talk
about scissors, glue, and the
variable bonding abilities of
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00:01:13,940 --> 00:01:15,740
epoxy based adhesives.
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00:01:15,809 --> 00:01:16,979
You know, the good stuff.
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00:01:17,043 --> 00:01:18,983
KIRBY: But we're having a
lot of trouble recording.
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00:01:19,045 --> 00:01:23,945
CHARLIE: Welcome to another
episode of "Crafternoons."
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00:01:24,017 --> 00:01:25,847
Today we're talking about.
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00:01:25,919 --> 00:01:27,849
MAN (off-screen): How come
you never take out the trash?
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00:01:27,921 --> 00:01:30,121
WOMAN (off-screen): What?
MAN (off-screen): The trash!
WOMAN (off-screen): Huh?
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00:01:30,190 --> 00:01:31,930
KIRBY: So when you hold this.
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00:01:31,991 --> 00:01:32,661
(barking)
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00:01:32,725 --> 00:01:33,825
When you hold this.
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00:01:33,893 --> 00:01:35,503
(barking)
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00:01:35,562 --> 00:01:36,602
When you.
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00:01:36,663 --> 00:01:38,733
(barking)
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00:01:38,798 --> 00:01:41,698
CHARLIE: You fold
the corners in.
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00:01:41,768 --> 00:01:43,298
KIRBY: And then
you flip it over.
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00:01:43,369 --> 00:01:45,209
And repeat the process.
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00:01:45,271 --> 00:01:46,411
CHARLIE: Corners
to the middle.
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00:01:46,473 --> 00:01:47,713
(barking)
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00:01:47,774 --> 00:01:51,784
Fold it in half. Put
your fingers in the pockets.
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00:01:51,845 --> 00:01:53,945
And there you go!
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00:01:54,013 --> 00:01:57,953
KIRBY: You should have
a basic fortune teller.
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00:01:58,017 --> 00:02:01,117
CHARLIE: Birds.
KIRBY: Neighbors.
CHARLIE: Winnie.
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00:02:01,187 --> 00:02:02,657
KIRBY: Everything.
CHARLIE: Madness.
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00:02:02,722 --> 00:02:05,962
KIRBY: If we could control all
these sounds around us, our
podcasts would be amazing.
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00:02:06,025 --> 00:02:09,095
CHARLIE: So that means today,
we're unraveling the world of.
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00:02:12,265 --> 00:02:13,925
BOTH (off-screen): Sound!
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00:02:16,169 --> 00:02:18,739
KIRBY: First things
first. What is sound?
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00:02:18,805 --> 00:02:21,705
CHARLIE: Well according
to this, sound
is just vibrations.
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00:02:21,774 --> 00:02:26,884
When you make a sound
you're causing a vibration,
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00:02:26,946 --> 00:02:30,346
which means
you're making a bunch of
particles wiggle around.
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00:02:30,416 --> 00:02:33,346
Those particles
bump into other particles
near them, which bump into
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00:02:33,419 --> 00:02:37,919
more particles,
and more particles,
and more particles.
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00:02:37,991 --> 00:02:39,891
It's like a domino effect.
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00:02:39,959 --> 00:02:42,659
This is called a sound wave.
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00:02:42,729 --> 00:02:45,799
KIRBY: So sound's
not a physical thing.
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00:02:45,865 --> 00:02:47,665
It's a wave of vibrations.
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00:02:47,734 --> 00:02:51,844
CHARLIE: Mhm. And the cool
thing is, that means sound
can travel through things.
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00:02:51,905 --> 00:02:57,535
We all know that sound can
travel through gases like air,
but it can even travel through
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00:02:57,610 --> 00:03:00,350
liquids and solids too!
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00:03:00,413 --> 00:03:01,583
Weird but True!
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00:03:01,648 --> 00:03:04,378
Sound can travel four
times faster in water.
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00:03:04,450 --> 00:03:08,490
And 15 times
faster in steel.
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00:03:08,555 --> 00:03:12,455
Kirb, it's like
sound cannot be stopped.
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00:03:12,525 --> 00:03:14,725
KIRBY: Weird, it's gonna
be hard to figure out then.
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00:03:14,794 --> 00:03:18,334
'Cause sound starts at a
source, it vibrates all
the particles around it,
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00:03:18,398 --> 00:03:21,938
then it can travel through
water, through steel, through
the walls of this room,
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00:03:22,001 --> 00:03:23,771
into our ears.
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00:03:23,836 --> 00:03:25,606
CHARLIE: What happens next?
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00:03:25,672 --> 00:03:28,312
KIRBY (off-screen):
Well let's take a look at
how our ears work in our heads.
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00:03:28,374 --> 00:03:31,684
Imagine, this is your ear,
and this is your brain.
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00:03:31,744 --> 00:03:33,954
And this is all
the stuff in between.
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00:03:34,013 --> 00:03:38,453
So sound waves enter our outer
ear and travel through the ear
canal into the middle ear.
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00:03:38,518 --> 00:03:40,988
The sound waves
vibrate our eardrums.
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00:03:41,054 --> 00:03:45,494
Those vibrations are
transferred to the inner ear
where they move fluid that
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00:03:45,558 --> 00:03:50,028
stimulates these tiny hairs
on this thing, the cochlea,
that create nerve signals,
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00:03:50,096 --> 00:03:53,096
which the brain
interprets as sound.
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00:03:53,166 --> 00:03:57,536
CHARLIE: So we need to
stop these vibrations
from entering our ears.
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00:03:57,604 --> 00:03:59,114
We need to block them.
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00:03:59,172 --> 00:04:02,042
KIRBY: But how can you
block something that
can move through stuff?
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00:04:02,108 --> 00:04:04,508
CHARLIE: Have you ever
heard of noise cancellation?
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00:04:04,577 --> 00:04:06,877
Like noise
canceling headphones.
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00:04:06,946 --> 00:04:08,476
I feel like it's
exactly what we need.
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00:04:08,548 --> 00:04:10,248
KIRBY: How do those work?
CHARLIE: Let's check it out.
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00:04:13,286 --> 00:04:17,656
Hello ladies and gentlemen,
welcome to Weird but True
flight 2251 bound for
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00:04:17,724 --> 00:04:20,234
Hush Town, Pennsylvania
with continued service to
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00:04:20,293 --> 00:04:23,033
Peace & Quiet
International Airport.
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00:04:23,096 --> 00:04:25,026
Thank you so much for
flying with us today.
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00:04:25,098 --> 00:04:28,668
If at any moment
during your flight there's an
increase in background noise,
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00:04:28,735 --> 00:04:33,335
panels above your head
will open, revealing noise
canceling headphones.
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00:04:33,406 --> 00:04:37,576
These headphones employ
two different techniques
to block background noise.
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00:04:37,644 --> 00:04:42,154
Feel free to follow along in
the information guide located
in the back seat pocket in
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00:04:42,215 --> 00:04:44,075
front of you.
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00:04:44,150 --> 00:04:49,660
First, these headphones use
passive noise control, which
is a super fancy way of saying
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00:04:49,722 --> 00:04:51,992
they cover your ears.
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00:04:52,058 --> 00:04:55,598
Some headphones
do this by creating a
seal around your ears.
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00:04:55,662 --> 00:05:00,772
This is functionally similar
to taking a pillow, wrapping
it around your head,
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00:05:00,833 --> 00:05:02,503
and blocking your ears.
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00:05:02,568 --> 00:05:04,998
Other headphones
feed into your ear.
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00:05:05,071 --> 00:05:11,011
To mimic this idea simply take
a finger and insert it into
both ears located on either
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00:05:11,077 --> 00:05:12,607
side of your head.
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00:05:12,679 --> 00:05:16,549
In the likely event that
passive noise control does not
block out enough background
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00:05:16,616 --> 00:05:21,016
noise, the headphones
employ a second technique,
active noise control.
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00:05:21,087 --> 00:05:26,427
Simple physics principles
and regulations require
noise to travel in waves.
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00:05:26,492 --> 00:05:30,632
When two sound waves meet
each other, they combine
and then pass through,
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00:05:30,697 --> 00:05:32,897
like actual waves
in the ocean.
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00:05:32,965 --> 00:05:37,135
As part of this form of
noise control, we've place a
super tiny microphone on the
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00:05:37,203 --> 00:05:39,773
headphones where
sound enters the ear.
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00:05:39,839 --> 00:05:45,179
It registers the incoming
noise, and plays a sound
that has a waveform exactly
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00:05:45,244 --> 00:05:47,814
180 degrees opposite, like this.
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00:05:47,880 --> 00:05:50,880
When these waves combine,
they cancel each other out.
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00:05:50,950 --> 00:05:55,420
Breathe easily and note that
although you can't hear that
microphone, it is working.
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00:05:55,488 --> 00:05:59,158
Adjust your own headphones,
before helping others, and
let passive and active noise
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00:05:59,225 --> 00:06:01,425
control do their thing.
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00:06:01,494 --> 00:06:03,864
Thank you so much for choosing
Weird but True Airlines.
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00:06:03,930 --> 00:06:05,500
Enjoy your flight.
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00:06:05,565 --> 00:06:08,365
KIRBY: That's
exactly what we need!
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00:06:08,434 --> 00:06:11,804
No more Winnie, no more
neighbors, no more birds.
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00:06:11,871 --> 00:06:14,641
CHARLIE: Already ahead
of you, Kirb. Check these out.
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00:06:14,707 --> 00:06:19,777
Kirb?
Kirb, can you hear me?
Kirby, can you hear me?
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00:06:19,846 --> 00:06:22,946
KIRBY: Oh, hey!
CHARLIE: How cool are these?
KIRBY: Amazing!
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00:06:23,015 --> 00:06:24,545
CHARLIE: They
muffle everything!
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00:06:24,617 --> 00:06:26,247
KIRBY: Yeah!
CHARLIE: Let's try them out!
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00:06:28,621 --> 00:06:34,031
Craft scissors, not just
a tool for craft projects.
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00:06:34,093 --> 00:06:38,263
KIRBY: They say a lot
about the real you.
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00:06:38,331 --> 00:06:42,771
Good show. Never interrupted.
No outside noises.
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00:06:42,835 --> 00:06:44,635
Let's play it back.
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00:06:44,704 --> 00:06:48,984
They say a lot
about the real you.
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00:06:49,041 --> 00:06:50,581
CHARLIE: I can
still hear the birds!
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00:06:50,643 --> 00:06:52,983
KIRBY: And Winnie.
CHARLIE: The microphone's
picking up everything.
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00:06:53,045 --> 00:06:56,145
How do you make a room
that's completely quiet?
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00:06:56,215 --> 00:06:59,145
KIRBY: Have you
ever heard of the quietest
place in the entire world?
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00:06:59,218 --> 00:07:00,618
CHARLIE: Nope.
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00:07:00,686 --> 00:07:02,956
KIRBY: Well if anyone knows
about making a room quiet,
it's gotta be these guys.
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00:07:03,022 --> 00:07:04,322
CHARLIE: We gotta go.
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00:07:04,390 --> 00:07:07,060
The future of our
podcast depends on it.
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00:07:07,126 --> 00:07:13,066
We're off to Minneapolis,
Minnesota to visit
Orfield Laboratories.
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00:07:13,132 --> 00:07:17,372
Minnesota is a Midwestern
state that borders
Canada and Lake Superior,
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00:07:17,437 --> 00:07:21,067
and it's nicknamed,
"Land of 10,000 Lakes."
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00:07:21,140 --> 00:07:22,680
KIRBY (off-screen): Hey guys.
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00:07:22,742 --> 00:07:26,212
CHARLIE: We made it. We're
here at Orfield Laboratories
in Minneapolis, Minnesota.
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00:07:26,279 --> 00:07:29,349
KIRBY: We're here to
visit the quietest room in
the world, to figure out how
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00:07:29,415 --> 00:07:31,115
we can soundproof HQ.
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00:07:31,184 --> 00:07:33,524
CHARLIE: And finally
record the perfect podcast.
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00:07:33,586 --> 00:07:36,056
And the guy who's gonna
help us out is Steve Orfield.
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00:07:36,122 --> 00:07:38,692
Sound expert.
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00:07:38,758 --> 00:07:43,558
His lab mainly does research,
testing, and design of all
kinds of products based on how
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00:07:43,629 --> 00:07:45,899
they sound to the
people that use them.
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00:07:45,965 --> 00:07:50,295
And his favorite Weird butTrue fact is, there's a new
acoustic technology that
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00:07:50,369 --> 00:07:52,539
allows you to visualize sound.
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00:07:54,240 --> 00:07:55,170
Hey Steve. How's it going?
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00:07:55,241 --> 00:07:56,241
KIRBY (off-screen): Hi Steve.
STEVE: Welcome.
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00:07:56,309 --> 00:07:57,709
CHARLIE: What can you
tell us about this place?
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00:07:57,777 --> 00:08:00,777
STEVE: We're the only
multi-perceptual lab in the
United States or Canada.
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00:08:00,847 --> 00:08:04,577
CHARLIE: It seems like
everything related to sound
but a lot of how people
154
00:08:04,650 --> 00:08:06,750
perceive sound in
different spaces.
155
00:08:06,819 --> 00:08:08,189
Is that correct?
156
00:08:08,254 --> 00:08:11,124
STEVE: Yeah. Everything
related to sound and all the
other senses that impact sound.
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00:08:11,190 --> 00:08:15,760
If you're in a quiet
restaurant, that steak is
going to taste differently
158
00:08:15,828 --> 00:08:17,828
than if, in fact,
you're in a noisy restaurant.
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00:08:21,133 --> 00:08:23,643
CHARLIE: How?
STEVE: Because your senses
work in combination.
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00:08:23,703 --> 00:08:27,073
And as one sense works harder,
another sense works less.
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00:08:27,139 --> 00:08:30,079
KIRBY: Sound is a
full body experience.
CHARLIE: Yeah.
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00:08:30,142 --> 00:08:33,452
KIRBY: So what kind of
methods and instruments
do you guys use here?
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00:08:33,513 --> 00:08:35,053
STEVE: To measure sound?
KIRBY: Mhm.
164
00:08:35,114 --> 00:08:37,784
STEVE: Well, we have probably
a dozen different sound level
meters with different levels
165
00:08:37,850 --> 00:08:39,250
of complexity.
166
00:08:39,318 --> 00:08:41,848
CHARLIE: And this is one
of the pieces of equipment
that you use right here?
167
00:08:41,921 --> 00:08:44,021
STEVE: Yeah. This is
a head and torso simulator.
168
00:08:44,090 --> 00:08:48,830
These guys record sound
by using artificial
ears with microphones.
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00:08:48,895 --> 00:08:50,555
And so this is a?
170
00:08:50,630 --> 00:08:52,130
CHARLIE: Oh my gosh,
you just rip them off.
KIRBY: Oh!
171
00:08:52,198 --> 00:08:55,968
STEVE: This is the pinna,
or the outer ear, and the
outer ear provides a set of
172
00:08:56,035 --> 00:09:00,435
reflections that give you your
three-dimensional sense of the
world so you can know where
173
00:09:00,506 --> 00:09:01,936
sound is coming from.
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00:09:02,008 --> 00:09:05,338
So this torso is designed
to imitate your ears so that
when you listen on a stereo
175
00:09:05,411 --> 00:09:09,921
headset, you can
hear side to side, up to
down, and front to back.
176
00:09:09,982 --> 00:09:11,252
CHARLIE: Yeah.
177
00:09:11,317 --> 00:09:15,187
STEVE (off-screen):
Now we have something
called an acoustic camera,
178
00:09:15,254 --> 00:09:17,264
which is the first piece
of measurement gear of its
type in the United States.
179
00:09:17,323 --> 00:09:20,863
The acoustic camera,
actually, is a disc of about
a foot and a half that has
180
00:09:20,927 --> 00:09:22,897
128 microphones in it.
181
00:09:22,962 --> 00:09:25,262
KIRBY: Whoa.
STEVE (off-screen): And you
aim it at a device and it'll
182
00:09:25,331 --> 00:09:27,231
show you where the sound
is coming from on the device.
183
00:09:27,300 --> 00:09:29,570
It's the first device
that can visualize sound.
184
00:09:29,635 --> 00:09:30,565
CHARLIE: That's
absolutely incredible.
185
00:09:30,636 --> 00:09:32,136
KIRBY: That's amazing.
STEVE: Yeah.
186
00:09:32,204 --> 00:09:35,914
CHARLIE: It seems like that's
your specialty here, trying
to capture sounds and record
187
00:09:35,975 --> 00:09:37,375
things perfectly.
188
00:09:37,443 --> 00:09:39,983
We'd love to check out some
of these spaces so we can
maybe pick up some ideas.
189
00:09:40,046 --> 00:09:43,116
We heard that you guys have
a pretty quiet room here.
190
00:09:43,182 --> 00:09:44,282
Is that true?
191
00:09:44,350 --> 00:09:47,490
STEVE: Pretty quiet.
CHARLIE: Pretty quiet?
Alright, let's do it.
192
00:09:47,553 --> 00:09:50,593
We're heading off
to the quietest room
in the entire world,
193
00:09:50,656 --> 00:09:53,286
but Steve's got a surprise
stop along the way.
194
00:09:53,359 --> 00:09:55,229
KIRBY (off-screen):
Weird but True.
195
00:10:03,536 --> 00:10:05,866
CHARLIE (off-screen):
Hey guys! We're here at
Orfield Laboratories to learn
196
00:10:05,938 --> 00:10:09,838
everything we can about sound,
mostly how to control it.
197
00:10:09,909 --> 00:10:11,979
And Steve's got a really
cool surprise for us.
198
00:10:15,681 --> 00:10:20,091
Wow! Whoa! Hello!
199
00:10:20,152 --> 00:10:22,152
What room is this?
200
00:10:22,221 --> 00:10:24,321
STEVE: It's called the
reverberation chamber.
201
00:10:24,390 --> 00:10:28,590
CHARLIE: Is this echoiest
room in the entire world?
Because it's very echoey.
202
00:10:28,661 --> 00:10:30,401
STEVE: It's one
of the better ones.
CHARLIE: Yeah?
203
00:10:30,463 --> 00:10:34,873
STEVE: Reverberation chambers
are 99.9% reflective.
204
00:10:34,934 --> 00:10:38,244
CHARLIE: 99.9% reflective?
STEVE: Right.
CHARLIE: What does that mean?
205
00:10:38,304 --> 00:10:40,774
STEVE: The walls
are completely solid
concrete block.
206
00:10:40,840 --> 00:10:44,380
The ceilings are solid
concrete, so there's no sound
absorption in the room.
207
00:10:44,443 --> 00:10:46,913
CHARLIE: So it just keeps
bouncing around inside?
208
00:10:51,217 --> 00:10:52,687
(whistles)
209
00:10:52,752 --> 00:10:54,392
(barks)
210
00:10:57,023 --> 00:10:58,323
Woop!
211
00:10:58,391 --> 00:10:59,431
(whistles)
212
00:11:01,861 --> 00:11:04,831
The other room that you
got is not as echoey
as this, correct?
213
00:11:04,897 --> 00:11:07,727
STEVE: It's the
opposite of this. It's
a 99.9% absorbent room.
214
00:11:07,800 --> 00:11:10,400
CHARLIE: Oh,
the exact opposite.
Let's go check it out.
215
00:11:13,706 --> 00:11:16,976
Whoa.
216
00:11:17,043 --> 00:11:19,613
KIRBY: What are we doing?
217
00:11:19,679 --> 00:11:25,579
Wow. This room, you have
padding on all the walls,
the floor, the ceiling,
218
00:11:25,651 --> 00:11:28,591
and it's soaking
up any other noise.
219
00:11:28,654 --> 00:11:32,064
STEVE: Yeah. This is called
the full anechoic chamber.
220
00:11:32,124 --> 00:11:34,834
CHARLIE: What's the
magic behind this room?
What makes it so quiet?
221
00:11:34,894 --> 00:11:38,664
STEVE: So we've got two
double wall steel barriers
with absorption inside.
222
00:11:38,731 --> 00:11:41,371
The walls are about this
thick, and they're, they have
insulation inside and steel
223
00:11:41,434 --> 00:11:45,544
sheet on both sides, so we
have an inner chamber and an
outer chamber made of that
224
00:11:45,604 --> 00:11:47,914
substantial steel
construction.
225
00:11:47,973 --> 00:11:49,443
And that's what
stops the sound.
226
00:11:49,508 --> 00:11:54,278
CHARLIE: These two rooms
Steve's shown us could
not be more opposite.
227
00:11:54,346 --> 00:11:57,516
Kirby's gonna
demonstrate the difference.
228
00:11:57,583 --> 00:11:58,683
KIRBY: You wanna go first?
229
00:11:58,751 --> 00:11:59,551
Go ahead.
Okay.
230
00:11:59,618 --> 00:12:01,248
One, two, three.
231
00:12:06,592 --> 00:12:10,032
CHARLIE: How many
decibels is the background
noise in this room?
232
00:12:10,096 --> 00:12:13,096
STEVE: Negative
13 decibels or 13 decibels
below the threshold
233
00:12:13,165 --> 00:12:14,795
of perfect human hearing.
234
00:12:14,867 --> 00:12:18,467
CHARLIE: Alright guys, a
decibel is one of the few
units that we can use to
235
00:12:18,537 --> 00:12:19,907
describe sound.
236
00:12:19,972 --> 00:12:23,712
That negative 13 decibel
reading is so crazy small.
237
00:12:23,776 --> 00:12:25,036
Check it out.
238
00:12:26,278 --> 00:12:28,908
Atta boy, Billy!
Good hustle kid!
239
00:12:28,981 --> 00:12:30,781
KIRBY: Shhh!
CHARLIE: Hey!
KIRBY: Hello!
240
00:12:30,850 --> 00:12:32,650
CHARLIE: So you wanna
learn about sound?
241
00:12:32,718 --> 00:12:34,188
KIRBY: We know
all about sound.
242
00:12:34,253 --> 00:12:38,723
CHARLIE: Jimmy,
get back on defense!
KIRBY: Shhh!
243
00:12:38,791 --> 00:12:41,031
CHARLIE: There are two
ways to measure sound.
244
00:12:41,093 --> 00:12:43,063
The first, frequency.
245
00:12:43,129 --> 00:12:45,099
KIRBY: That measures how high.
CHARLIE: Or how low.
246
00:12:45,164 --> 00:12:47,204
KIRBY: A sound can be.
And it's measured in hertz.
247
00:12:47,266 --> 00:12:50,066
Humans can detect sounds
as high as 20,000 hertz.
248
00:12:50,136 --> 00:12:52,266
CHARLIE: Or as
low as 20 hertz.
249
00:12:52,338 --> 00:12:54,738
KIRBY: The second way to
measure something is with
intensity, which is how.
250
00:12:54,807 --> 00:12:58,937
CHARLIE: Loud something is!
Come on boys, serpentine!
251
00:12:59,011 --> 00:13:01,111
Serpentine boys!
252
00:13:01,180 --> 00:13:03,580
KIRBY: Shh!
This is measured in decibels.
253
00:13:03,649 --> 00:13:06,119
Something with a low decibel
readings is very soft.
254
00:13:06,185 --> 00:13:09,315
CHARLIE: Sounds with
high decibel readings
are really loud!
255
00:13:09,388 --> 00:13:11,458
KIRBY: Human breathing
is around ten decibels.
256
00:13:11,524 --> 00:13:12,934
A whisper is around 20.
257
00:13:12,992 --> 00:13:15,092
And my library is
around 40 decibels.
258
00:13:15,161 --> 00:13:17,731
CHARLIE (off-screen): A garbage
disposal's around 80 decibels.
259
00:13:17,797 --> 00:13:20,327
A jack hammer is
around 100 decibels.
260
00:13:20,399 --> 00:13:24,839
And a jet engine is
around 150 decibels!
261
00:13:24,904 --> 00:13:27,314
Come on boys, touch and pass!
262
00:13:27,373 --> 00:13:31,113
KIRBY: The quietest
room in the world is
negative 13 decibels,
263
00:13:31,177 --> 00:13:33,107
which is nearly indiscernible.
264
00:13:33,179 --> 00:13:34,949
CHARLIE: Indiscernible!
265
00:13:35,014 --> 00:13:38,054
Ref! Are you
kidding me, ref? Come on!
266
00:13:38,117 --> 00:13:40,017
KIRBY: Shh!
267
00:13:41,987 --> 00:13:43,317
CHARLIE: This feels like.
KIRBY: Contained.
268
00:13:43,389 --> 00:13:44,959
CHARLIE: There's
cotton in your ears.
KIRBY: Mhm.
269
00:13:45,024 --> 00:13:46,564
CHARLIE: Or like you're
almost in a, a dream.
270
00:13:46,625 --> 00:13:50,355
STEVE: If you sat in here for
a period of time, you'll begin
to hear your joints in your
271
00:13:50,429 --> 00:13:53,529
elbows and your wrists and
your arms, you'll be able
to hear your heartbeat,
272
00:13:53,599 --> 00:13:56,369
you'll be able to hear
the flowing of your lungs.
273
00:13:56,435 --> 00:13:59,435
If your stomach
starts to gurgle,
it'll sound really loud.
274
00:13:59,505 --> 00:14:02,575
CHARLIE: Oh, man. I don't
know how I feel about this.
275
00:14:02,641 --> 00:14:05,881
STEVE: So you'll become
the source of entertainment.
276
00:14:05,945 --> 00:14:09,075
CHARLIE: Can we give it a shot?
Kirby, you feeling up to it?
KIRBY: Absolutely.
277
00:14:09,148 --> 00:14:10,818
STEVE: You just can't
talk to each other.
278
00:14:10,883 --> 00:14:13,053
You have to both be
quiet as if no-one's here.
279
00:14:13,118 --> 00:14:14,788
CHARLIE: Alright.
Let's go, I'm ready.
280
00:14:22,494 --> 00:14:24,264
Roar!
281
00:14:24,330 --> 00:14:25,500
Mwahaha!
282
00:14:25,564 --> 00:14:27,204
KIRBY: Stop!
CHARLIE: Spooky room!
283
00:14:27,266 --> 00:14:31,136
KIRBY: Stop shh, shh,
shush turn the light off.
CHARLIE: Ready? Set?
284
00:14:31,203 --> 00:14:37,143
KIRBY: Shh, shh, shh. Shh.
285
00:14:47,119 --> 00:14:53,129
(heartbeat)
286
00:15:00,132 --> 00:15:01,532
Hey Steve.
287
00:15:01,600 --> 00:15:04,800
CHARLIE: Hi.
STEVE: Are you awake?
KIRBY: How's it going?
288
00:15:04,870 --> 00:15:06,570
CHARLIE: Yeah.
STEVE: You got off the chairs.
289
00:15:06,639 --> 00:15:09,479
CHARLIE: Yeah, we had to
move around a little I guess.
290
00:15:09,541 --> 00:15:11,441
STEVE: Was it bothering you?
291
00:15:11,510 --> 00:15:14,180
KIRBY: No.
CHARLIE: I felt a little weird
throughout the whole thing.
292
00:15:14,246 --> 00:15:15,676
STEVE: I knew you would.
293
00:15:15,748 --> 00:15:18,878
CHARLIE: Oh man.
KIRBY: I liked it.
Nothing is going on in there.
294
00:15:18,951 --> 00:15:20,421
STEVE: That's right.
295
00:15:20,486 --> 00:15:25,216
CHARLIE: It's like for the
first five minutes, you're
just kind of in the space,
296
00:15:25,291 --> 00:15:27,961
but after a while,
things start changing.
297
00:15:28,027 --> 00:15:29,557
My ears are all fuzzy.
298
00:15:29,628 --> 00:15:32,928
I could feel these,
I could feel these little pops
happening in my tummy and I
299
00:15:32,998 --> 00:15:35,098
couldn't figure out
what was going on!
300
00:15:35,167 --> 00:15:36,897
How'd you feel, Kirb?
301
00:15:36,969 --> 00:15:38,539
KIRBY: I felt good.
My mind didn't wander.
302
00:15:38,604 --> 00:15:42,644
I thought about that
at the end, how I expected
to have all these thoughts
303
00:15:42,708 --> 00:15:44,238
swirling around.
304
00:15:44,310 --> 00:15:46,310
Eventually, they went away.
305
00:15:46,378 --> 00:15:47,378
STEVE: Your, your
mind went peaceful.
306
00:15:47,446 --> 00:15:48,506
KIRBY: Mhm.
STEVE: Yeah.
307
00:15:48,580 --> 00:15:51,720
CHARLIE: You were
thinking about nothing,
the whole time in there?
308
00:15:51,784 --> 00:15:54,254
KIRBY: Eventually, yeah.
STEVE: See, brother
and sister are opposite.
309
00:15:54,320 --> 00:15:55,620
CHARLIE: I'm glad to
be out of that room.
310
00:15:55,688 --> 00:15:57,358
I feel like we picked
up a bunch of stuff.
311
00:15:57,423 --> 00:15:59,023
KIRBY: Oh yeah.
CHARLIE: To help us give us some
ideas of how to soundproof HQ,
312
00:15:59,091 --> 00:16:00,961
which is the number
one goal right now.
313
00:16:01,026 --> 00:16:03,026
KIRBY: We're ready.
CHARLIE: Alright,
Steve thanks so much.
314
00:16:03,095 --> 00:16:04,825
STEVE: You're welcome.
CHARLIE: We had a blast
here. Thanks for your help.
315
00:16:04,897 --> 00:16:06,327
KIRBY: Thanks, Steve.
STEVE: You're welcome.
316
00:16:06,398 --> 00:16:08,698
CHARLIE: Alright guys, we're
gonna hop back to HQ, start
sound proofing things and
317
00:16:08,767 --> 00:16:10,537
we'll see you there in a bit.
318
00:16:10,602 --> 00:16:11,542
Sounds good? Awesome?
319
00:16:11,603 --> 00:16:13,343
KIRBY (off-screen):
Weird but True.
320
00:16:24,383 --> 00:16:27,923
CHARLIE: One final
touch. And. We're done.
321
00:16:27,987 --> 00:16:29,087
KIRBY: That didn't
take too long.
322
00:16:29,154 --> 00:16:31,724
CHARLIE: We got that
super quiet room that
we're looking for.
323
00:16:31,790 --> 00:16:35,190
We applied everything
that Steve mentioned
back at Orfield Labs.
324
00:16:35,260 --> 00:16:39,800
To stop outside noises
from coming in, we added a
bunch of stuff to the walls,
325
00:16:39,865 --> 00:16:42,935
including pool noodles on
the window, our weak point.
326
00:16:43,002 --> 00:16:46,972
To stop reverberations
inside the room, we added
blankets to the walls,
327
00:16:47,039 --> 00:16:51,409
carpet on the ground, and we
put stuffed animals all over
the place to mimic those cones
328
00:16:51,477 --> 00:16:53,977
in the quietest
room in the world.
329
00:16:54,046 --> 00:16:56,176
No sounds getting in here.
330
00:16:56,248 --> 00:16:57,918
KIRBY: It's like we got
our own quietest room.
331
00:16:57,983 --> 00:16:59,493
CHARLIE: Not even a decibel.
332
00:16:59,551 --> 00:17:01,391
KIRBY: Not.
CHARLIE: A.
KIRBY: Decibel.
333
00:17:01,453 --> 00:17:05,893
CHARLIE: Mm. Ooo, this
feels kind of weird in here.
334
00:17:05,958 --> 00:17:07,758
It's like a weird thing. Do
you feel kinds of like weird?
335
00:17:07,826 --> 00:17:09,256
KIRBY: It's quiet. I like it.
336
00:17:09,328 --> 00:17:11,798
CHARLIE: Gee, I don't like
it at all. This is exactly
how I felt in Minnesota.
337
00:17:11,864 --> 00:17:13,704
I feel kind of weird and
I'm already seeing colors.
338
00:17:13,766 --> 00:17:16,166
It's like I'm antsy and I
wanna run around and just like
make a lot of noise and I
339
00:17:16,235 --> 00:17:17,695
don't, I don't get it Kirb!
340
00:17:17,770 --> 00:17:20,970
It's like when sound is there
it's bad, but when it's not
there I feel really weird
341
00:17:21,040 --> 00:17:24,310
about it and I wanna
solve this problem,
but nothing's working.
342
00:17:24,376 --> 00:17:25,976
KIRBY: Charles.
343
00:17:26,045 --> 00:17:27,345
Do we have to talk
some things through?
344
00:17:27,413 --> 00:17:29,313
CHARLIE: I think we do.
345
00:17:29,381 --> 00:17:32,951
KIRBY: So Charlie, tell me,
how have you been feeling?
346
00:17:33,018 --> 00:17:34,448
CHARLIE: It's these sounds.
347
00:17:34,520 --> 00:17:37,760
It's like I want them to
go away but when they're
gone it's too quiet.
348
00:17:37,823 --> 00:17:40,793
Are sounds good?
Are sounds bad?
What's going on?
349
00:17:40,859 --> 00:17:42,089
KIRBY: You know it depends.
350
00:17:42,161 --> 00:17:43,731
It's all contextual.
351
00:17:43,796 --> 00:17:45,956
Here's a good example from
one of my good friends.
352
00:17:46,031 --> 00:17:49,971
He's an auditory
neuroscientist at
Brown University.
353
00:17:51,837 --> 00:17:53,407
CHARLIE: Listen to this sound.
354
00:17:56,175 --> 00:17:57,505
It's pretty good, right?
355
00:17:57,576 --> 00:18:01,576
It sounds like rain pitter
patter on a tin roof.
356
00:18:01,647 --> 00:18:04,617
Think of how you're
feeling right now.
357
00:18:04,683 --> 00:18:06,293
Mm.
358
00:18:06,351 --> 00:18:09,491
The truth is, it's not the
sound of rain on a tin roof.
359
00:18:09,555 --> 00:18:14,125
It's the sound
of a bunch of mealworms
gnawing on a bat carcass.
360
00:18:14,193 --> 00:18:16,433
How are you feeling now?
361
00:18:19,164 --> 00:18:22,974
KIRBY: So you
see it depends on what you
associate those sounds with.
362
00:18:23,035 --> 00:18:24,595
CHARLIE: That was gross.
363
00:18:24,670 --> 00:18:26,070
KIRBY: Precisely!
364
00:18:26,138 --> 00:18:28,738
And here's something
that might help you
feel a bit better.
365
00:18:28,807 --> 00:18:34,347
You see, there are some
good sounds and some bad sounds
that are communal for everyone.
366
00:18:34,413 --> 00:18:38,853
So meet good sound
cop and bad sound cop.
367
00:18:41,086 --> 00:18:42,146
(groans)
368
00:18:42,221 --> 00:18:43,691
CHARLIE: Bad cop, settle down!
369
00:18:43,755 --> 00:18:45,215
KIRBY: You think
you're so tough?
370
00:18:45,290 --> 00:18:47,960
You want to hear
some bad sounds?
371
00:18:48,026 --> 00:18:49,656
CHARLIE: Bad cop,
take a break.
372
00:18:49,728 --> 00:18:54,368
So they did this study at
Salford University in Britain
where they found some very,
373
00:18:54,433 --> 00:18:56,873
unpleasant sounds.
374
00:18:56,935 --> 00:18:59,965
KIRBY: The most
unpleasant sounds.
375
00:19:00,038 --> 00:19:01,138
CHARLIE: Here's
what they found.
376
00:19:01,206 --> 00:19:06,706
KIRBY: Bad sound number one
is a human just vomiting.
377
00:19:06,778 --> 00:19:11,048
Bad sound number two was a
microphone feedback sound.
378
00:19:11,116 --> 00:19:13,916
You know? Like, eeee.
379
00:19:13,986 --> 00:19:19,726
And sound number three
is a baby just wailing,
crying up a storm.
380
00:19:19,791 --> 00:19:22,691
Like wah wah wah.
381
00:19:22,761 --> 00:19:24,101
You think you're so tough?
382
00:19:24,163 --> 00:19:26,303
I can break you in two
seconds with these sounds.
383
00:19:26,365 --> 00:19:31,495
CHARLIE: Okay okay, okay,
but these studies also found
the most pleasant sounds.
384
00:19:31,570 --> 00:19:33,140
Here's what they found.
385
00:19:33,205 --> 00:19:37,575
The number one most pleasant
sound, a friendly applause.
386
00:19:37,643 --> 00:19:41,183
Number two, a giggly baby.
387
00:19:41,246 --> 00:19:46,286
And number three, a
nice roll of thunder
off in the distance.
388
00:19:46,351 --> 00:19:49,991
KIRBY: Aaaahhh!
CHARLIE: I like these puppets.
389
00:19:50,055 --> 00:19:53,355
KIRBY: So, yeah, you
see sound doesn't just
have to be overwhelming.
390
00:19:53,425 --> 00:19:57,925
They found that premature
babies gained more weight
when they listened to Mozart.
391
00:19:57,996 --> 00:19:59,426
CHARLIE: Hmm.
392
00:19:59,498 --> 00:20:02,898
KIRBY: Thought that the music
relaxed them and encouraged
them to use less energy.
393
00:20:02,968 --> 00:20:05,238
So yeah, sound can
be used for good.
394
00:20:05,304 --> 00:20:07,114
CHARLIE: Hmmm.
395
00:20:07,172 --> 00:20:08,612
I think I get it now.
396
00:20:08,674 --> 00:20:11,214
I need to embrace
the good sounds.
397
00:20:11,276 --> 00:20:15,246
KIRBY: Maybe we're just
lacking good sounds.
398
00:20:15,314 --> 00:20:18,884
CHARLIE: Yeah,
like we need to Mozart this
premature baby of a podcast.
399
00:20:18,951 --> 00:20:21,121
KIRBY: If you want to
use that wording, sure.
400
00:20:21,186 --> 00:20:23,116
CHARLIE: Kirb, grab the mic.
401
00:20:23,188 --> 00:20:24,488
I got an idea.
402
00:20:24,556 --> 00:20:27,126
Guys, we're gonna go
outside real quick but when
we get back, I guarantee,
403
00:20:27,192 --> 00:20:29,832
we're finally gonna have
the perfect podcast.
404
00:20:29,895 --> 00:20:31,155
We'll see you soon.
405
00:20:32,497 --> 00:20:33,767
KIRBY (off-screen):
Weird but True.
406
00:20:41,006 --> 00:20:45,876
CHARLIE: And that just
about wraps up today's episode,
a quick shout out to our
407
00:20:45,944 --> 00:20:50,184
sponsor, Madame Eruption's
Geological Art Guides.
408
00:20:50,249 --> 00:20:53,589
KIRBY: They'll make
your art skills explode.
409
00:20:53,652 --> 00:20:55,522
CHARLIE: I'm Kirby's
brother, Charlie.
410
00:20:55,587 --> 00:20:57,317
KIRBY: And I'm Charlie's
sister, Kirby.
411
00:20:57,389 --> 00:21:00,589
CHARLIE: We'll see you
on the next episode
of "Crafternoons!"
412
00:21:00,659 --> 00:21:02,329
Keep craftin' out there.
413
00:21:02,394 --> 00:21:05,064
KIRBY: Charles we crushed it!
414
00:21:05,130 --> 00:21:08,670
CHARLIE: Guys, we solved all
of our problems, check it out.
415
00:21:08,734 --> 00:21:12,804
As you know, HQ is
sound-proofed to control all
the background noise levels.
416
00:21:12,871 --> 00:21:16,681
KIRBY: We recorded nature
sounds, and now that we
can control the levels,
417
00:21:16,742 --> 00:21:18,682
they've become good
background noise.
418
00:21:18,744 --> 00:21:21,384
CHARLIE: It finally
sounds good in here.
419
00:21:21,446 --> 00:21:25,416
We have noise-canceling
headphones to help us focus,
pump in some Mozart every now
420
00:21:25,484 --> 00:21:29,154
and then to relax the
listeners, and control
the decibel levels.
421
00:21:29,221 --> 00:21:31,561
This podcast is
off the charts.
422
00:21:31,623 --> 00:21:33,363
KIRBY: We got a new
episode coming up.
423
00:21:33,425 --> 00:21:36,755
It dives into the
big paperclip versus
stapler debate.
424
00:21:36,828 --> 00:21:41,298
If you're a regular listener
I'm sure you know I am a big
fan of the paper clip.
425
00:21:41,366 --> 00:21:43,666
CHARLIE: Alright guys, it
looks like we have a new
project on our hands.
426
00:21:43,735 --> 00:21:46,735
KIRBY: And Charles is
a passionate member
of Team Staple.
427
00:21:46,805 --> 00:21:48,365
CHARLIE: But thanks so
much for stopping by.
428
00:21:48,440 --> 00:21:50,840
KIRBY: I guess he just likes
poking holes in perfect paper.
429
00:21:50,909 --> 00:21:53,179
CHARLIE: Come by again
when we discover more
things that are weird.
430
00:21:53,245 --> 00:21:56,745
KIRBY: But true!
CHARLIE: We'll see you later!
One word Kirb, "Slippage."
431
00:21:56,815 --> 00:21:58,075
You ever experience
slippage with a staple?
432
00:21:58,150 --> 00:21:59,250
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