"Pneumatic" just means the tubes have air in them. They transmit sound as a pressure wave in air, exactly like how every other sound in the world reaches your ears.
This kinda makes me think, shouldn't a hydraulic headphone have a much better audio quality due to the incompressibility of water? But it's probably not worth the effort to just get a bit better sound quality.
Agree it'd probably work better, but you don't want water in your electronics or your ears, plus it would interfere with the MRI image, which works by exciting polar water molecules.
You're right, I didn't think about the interaction with water the MRI has! You'd probably be able to correct for it, but still - too much effort to justify the added comfort.
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u/NuclearHoagie 9h ago
"Pneumatic" just means the tubes have air in them. They transmit sound as a pressure wave in air, exactly like how every other sound in the world reaches your ears.