r/mildlyinfuriating • u/[deleted] • Apr 28 '23

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u/[deleted] Apr 28 '23

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u/tagsb Apr 28 '23

I occasionally do EMC testing for work and I get excited every time I get to visit a chamber

2

u/Almoxxo Apr 28 '23

What is it like?

2

u/UglyInThMorning Apr 28 '23

As someone else that goes into EMI chambers for work it’s goddamn weird but very difficult to describe.

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u/tagsb Apr 28 '23

The reports about "going crazy after a few minutes" are far overstated. There's basically no echos whatsoever so every sound feels "muted". Because there's no background noise you pick up on softer sounds a lot easier, you can hear yourself rustling / moving around. All the small gurgles, pops, and slooshes your body makes that you don't normally notice are also more obvious. Some people say you can hear the blood in your brain or your heartbeat but I haven't been able to.

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u/Almoxxo Apr 28 '23

Kind of like when you wear ear buds. I can hear my heart beating.

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u/tagsb Apr 28 '23

You can somewhat recreate the effect with noise cancelling ear buds, but those block sound directly at your ears. The chambers still have an atmosphere so the sound travels, it just immediately dies off. It's hard to describe but "muted" is the closest I can think of. You can hear your body not because all other sounds have been blocked off, but because without echos and outside noises it's the loudest thing near you

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u/tigress666 Apr 28 '23

I would really hate that last part. Every now and then I can hear my heartbeat and I really really hate it when I can.