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(YouTube)   Popping a balloon in a reverberation room vs popping a balloon in an anechoic chamber   ( youtube.com) divider line
    More: Cool, reverberation time, Sound, reverberant field, anechoic field, Reverberation, Acoustics, balloon pop, Guitar amplifier  
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3637 clicks; posted to Geek » on 19 Mar 2017 at 7:53 AM (43 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



32 Comments     (+0 »)
 
View Voting Results: Smartest and Funniest
 
2017-03-19 05:20:55 AM  
Stood in one of these, once, in a live news studio during off-hours.  It's an extremely eerie sensation because there's essentially no background noise at all.  You hear things you didn't realize could make noise, like rustling of your hair from shaking your head or the rattling of fastened buttons on your shirt.  You might not hear footsteps from someone stomping around the room in close proximity because the reverberations are completely deadened by the walls and floor.
 
2017-03-19 08:12:10 AM  

thecactusman17: Stood in one of these, once, in a live news studio during off-hours.  It's an extremely eerie sensation because there's essentially no background noise at all.  You hear things you didn't realize could make noise, like rustling of your hair from shaking your head or the rattling of fastened buttons on your shirt.  You might not hear footsteps from someone stomping around the room in close proximity because the reverberations are completely deadened by the walls and floor.


I work in ADR and the first time I ever walked into one of those studios, it freaked me out a bit. As you said, you can hear your hair moving. You can even hear your neck cartilage grinding when you move your head. Everytime you shifted around, even slightly, you can actually hear your clothes rubbing together, stretching and contracting. Would love to sleep in one of these rooms.
 
2017-03-19 08:21:17 AM  
Wow.
 
2017-03-19 08:22:37 AM  
...CSB:  My dad worked for more than 20 years at NASA's Lewis-Glenn Research Center in Cleveland, and he helped design a massive anechoic chamber they nicknamed the Thunderdome.   He got me in there when they tested it...with a USMC Harrier chained to the test platform.  You could NOT hear it outside of the dome itself, and even inside it was unbelieveably quiet - you felt it, more than heard it.
 
2017-03-19 08:46:18 AM  

weapon13: You can even hear your neck cartilage grinding when you move your head.


Wait, that's not normal?
 
2017-03-19 08:51:48 AM  

gnosis301: Wow.


You mean "wow"
 
2017-03-19 09:03:09 AM  
So they're smart enough to create those rooms, but still dumb enough to use vertical video.
 
2017-03-19 09:05:10 AM  
raw.githubusercontent.comView Full Size
 
2017-03-19 09:58:48 AM  
I like that most restaurants use the reverberation model in their architecture.

/not
 
2017-03-19 10:11:10 AM  
The only reason I am letting the vertical video slide is because this is quite possibly the worlds best video right there folks. 17 seconds, no big and annoying intro. No buildup, no shiatty auto-tuned garbage. No 30 second long "SUBSCRIBE TO MY CHANNEL OR I WILL KILL YOUR FIRST BORN" messages, etc...

In a nutshell:
A: What they'll be doing
B: They're doing it
C: It's done.

wow....
 
2017-03-19 10:53:22 AM  

Enormous-Schwanstucker: The only reason I am letting the vertical video slide is because this is quite possibly the worlds best video right there folks. 17 seconds, no big and annoying intro. No buildup, no shiatty auto-tuned garbage. No 30 second long "SUBSCRIBE TO MY CHANNEL OR I WILL KILL YOUR FIRST BORN" messages, etc...

In a nutshell:
A: What they'll be doing
B: They're doing it
C: It's done.

wow....


But I really appreciate an unnecessary soundtrack, preferably from an unknown musician.  And a couple of slow motion replays.  And I love it when the person recording lowers the camera at the critical moment.
 
2017-03-19 11:42:54 AM  

Enormous-Schwanstucker: The only reason I am letting the vertical video slide is because this is quite possibly the worlds best video right there folks. 17 seconds, no big and annoying intro. No buildup, no shiatty auto-tuned garbage. No 30 second long "SUBSCRIBE TO MY CHANNEL OR I WILL KILL YOUR FIRST BORN" messages, etc...

In a nutshell:
A: What they'll be doing
B: They're doing it
C: It's done.

wow....


And no soundtrack by Drowning Pool or 009 Sound System. Wow indeed.
 
2017-03-19 11:58:41 AM  
Didn't Stephen Fry do this a couple of years ago on QI?
 
2017-03-19 12:18:23 PM  
I wonder how farts and burps would sound in those rooms.

/yes, I'm immature
 
2017-03-19 12:19:40 PM  

thecactusman17: Stood in one of these, once, in a live news studio during off-hours.  It's an extremely eerie sensation because there's essentially no background noise at all.  You hear things you didn't realize could make noise, like rustling of your hair from shaking your head or the rattling of fastened buttons on your shirt.  You might not hear footsteps from someone stomping around the room in close proximity because the reverberations are completely deadened by the walls and floor.


Soundproof booth, probably. Anechoic chamber? Unlikely. They are completely unnecessary for news broadcasting, and cost orders of magnitude more to build (and true soundproof rooms are already super expensive).
The easy question to distinguish the two: was the floor carpeted, or was it a bouncing wire mesh suspended above a set of absorbers?
img.fark.netView Full Size
 
2017-03-19 12:22:40 PM  
"Throckmorton, a scientist to the core, knew that if he broke wind in the echo chamber, he'd never hear the end of it."
 
2017-03-19 12:25:21 PM  
Soundproof rooms - not anechoic chambers - are still very cool. They're built as rooms within rooms - you first build a shell, and then you put heavy rubber blocks on the floor, ceiling, and walls. You then build a smaller room inside, on top of the blocks. They isolate the inside from any vibrations from outside. The internal room needs to have non-parallel walls/floor/ceiling to avoid standing waves, some good absorption and diffusion (though, usually, not completely dead, because that ends up sounding weird), and heavy soundproofing around and as part of the door (which has to couple between the floating room and the external world). You also need a long snaking ventilation system that's filled with absorptive materials so that distant blowers aren't heard.
Back when I was in radio, our studios had a noise floor down around 12 dB SPL, which is barely above the threshold of hearing. Most of that was leakage around the door and through the vents.
 
2017-03-19 12:50:42 PM  

thecactusman17: Stood in one of these, once, in a live news studio during off-hours.  It's an extremely eerie sensation because there's essentially no background noise at all.  You hear things you didn't realize could make noise, like rustling of your hair from shaking your head or the rattling of fastened buttons on your shirt.  You might not hear footsteps from someone stomping around the room in close proximity because the reverberations are completely deadened by the walls and floor.


My company has a sound lab with a half dozen of these rooms. It is damned eerie walking into one. It's hard to explain the feeling without actually going in one.
 
2017-03-19 02:40:35 PM  

DRTFA: But I really appreciate an unnecessary soundtrack, preferably from an unknown musician.  And a couple of slow motion replays.  And I love it when the person recording lowers the camera at the critical moment.


Sarcastic like typing detected....

JFC this!


Dragonflew: And no soundtrack by Drowning Pool or 009 Sound System. Wow indeed.


Exactly. Christ, everyone thinks they're would be editors now. They aren't. Just get to the video and show us the good stuff.
 
2017-03-19 02:43:23 PM  

duckpoopy: gnosis301: Wow.

You mean "wow"


He meant
 
2017-03-19 03:48:32 PM  

Enormous-Schwanstucker: The only reason I am letting the vertical video slide is because this is quite possibly the worlds best video right there folks. 17 seconds, no big and annoying intro. No buildup, no shiatty auto-tuned garbage. No 30 second long "SUBSCRIBE TO MY CHANNEL OR I WILL KILL YOUR FIRST BORN" messages, etc...

In a nutshell:
A: What they'll be doing
B: They're doing it
C: It's done.

wow....


I would've added a pop in a "normal" room; i.e., one not designed to echo or not echo, since the first room is a reverb room, and therefore presumably designed to promote echoes.

/ Other than that, "This"
 
2017-03-19 03:57:04 PM  
More explanation of an anechoic chamber and people doing normally extremely loud things in one:

Anechoic Adventures - Hughes & Kettner Triamp MKIII
Youtube 4yyU7iqEYow
 
2017-03-19 03:59:36 PM  

weapon13: Would love to sleep in one of these rooms.


That might not be as pleasant as you think.

Can Silence Actually Drive You Crazy?
Youtube mXVGIb3bzHI
 
2017-03-19 04:02:04 PM  

Victoly: I would've added a pop in a "normal" room; i.e., one not designed to echo or not echo, since the first room is a reverb room, and therefore presumably designed to promote echoes.

/ Other than that, "This"


I neglected to mention that I did fart in an anechoic chamber many years ago. I recall it being a dull BRAP with none of the attendant, umm, echo I guess, afterwards. I was underwhelmed...but strangely relieved once I stopped laughing.
 
2017-03-19 04:13:51 PM  
So quiet a bowl of maggots sounds like rice krispies.

How Loud is a Slithering Snail? - Bang Goes The Theory - Series 6 Episode 2 - BBC One
Youtube lZ4Bh2RkQhM
 
2017-03-19 06:06:02 PM  

LewDux: "Throckmorton, a scientist to the core, knew that if he broke wind in the echo chamber, he'd never hear the end of it."


where have I heard that before?
 
2017-03-19 09:26:37 PM  

Slypork: I wonder how farts and burps would sound in those rooms.

/yes, I'm immature


Silent, but deadly.
 
2017-03-19 10:52:12 PM  
The purity of the tone of the sax in the anechoic chamber is amazing.I'd love to listen to some
music within one of those rooms to just take in the pure sound, without echo or distortion from
ambient sound...Imagine listening to Echo's in a room that doesn't echo!
 
2017-03-20 09:23:57 AM  

Dansker: weapon13: Would love to sleep in one of these rooms.

That might not be as pleasant as you think.

[iFrame https://www.youtube.com/embed/mXVGIb3bzHI - 480x270]


I wonder if you could rent one at an hourly rate?

/asking for a friend
//don't judge me
///who am I kidding, this is Fark
 
2017-03-20 11:23:29 AM  
I love how many engineers, musicians, and sound geeks we have here on fark.
I'm all three so I suck at all of them. So I produce weird bands.
This video excites me.
Now, off to test that Sennheiser 441-u I just got for $300!
 
2017-03-20 12:39:15 PM  
i worked in an anechoic chamber for a number of months many years ago.  i could hear my blood flowing when i was lifting things to the mounts for placement.  weirdest feelin ever.
 
2017-03-20 02:53:08 PM  

Dansker: weapon13: Would love to sleep in one of these rooms.

That might not be as pleasant as you think.

[iFrame https://www.youtube.com/embed/mXVGIb3bzHI - 480x270]


I can't watch the video but I assume it has to do with all the noises that brain autonomously filters out suddenly being able to be heard, resulting in an unnerving anxiety pumping the fight or flight response.

I think the same about darkness, your brain wants darkness but not TOTAL darkness
 
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