How do MRI Headphones work? (2022)
tomlingham.com
How do MRI Headphones work? (2022)
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Re: How do MRI Headphones work? (2022)
#2tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
Re: How do MRI Headphones work? (2022)
#3tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
I've been on an airplane that used these! I think it even had a channel selector near the plug if I remember correctly (it's been a while).
Re: How do MRI Headphones work? (2022)
#4tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
I've been on an airplane that used these! I think it even had a channel selector near the plug if I remember correctly (it's been a while).
EDIT i'm wrong the speaker was inside the armrest.
I wouldn't be surprised if the channel selector wheel was a simple mechanical acoustic coupler rotating to connect or cap upstream source tubes. I remember it as well flying in the late 80s or early 90s.
Re: How do MRI Headphones work? (2022)
#5tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
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Re: How do MRI Headphones work? (2022)
#6This guy also has a post about the hierarchy of socks and underwear which resonated with me.
https://tomlingham.com/articles/an-unfortunate-hierarchy-of-...
Re: How do MRI Headphones work? (2022)
#7tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
I used to love trying to surreptitiously unplug my traveling companions’ headphones so I could blow into the end of the tube. Never once pulled it off.
Re: How do MRI Headphones work? (2022)
#8This guy also has a post about the hierarchy of socks and underwear which resonated with me. https://tomlingham.com/articles/an-unfortunate-hierarchy-of-...
Interesting how different people's minds are.
I find the exact opposite problem, I go with old faithful over new.
It's for this reason that when I put my clothes away I simply take the stack of clothes in my dresser out, put all the fresh stuff on the bottom, then put the clothes that were in the drawer stuff on top.
I always grab the top sweater, t-shirt socks etc and I don't think about it at all.
Re: How do MRI Headphones work? (2022)
#9I thought these were a nice idea when I had my MRI the other day, little did I know that I would barely be able to hear anything over the noise of the MRI machine. Ear plugs were better, kept out the noise of the MRI machine and let me drift into a trance.
Re: How do MRI Headphones work? (2022)
#10tldr it's a pneumatic tube like a stethoscope. these used to be used within aircraft as well for inflight entertainment.
> The sound is transported along the tube via air — a very simple solution. Though this also explains why they sound absolutely terrible.
I see it is simple, but I wonder, would it be possible to use different sound medium ("conductor")? Some liquid, water perhaps? Would elasticity of the tube eat more signal than is lost in the air? Too heavy? Leaky? Questions…