I had the same feeling when I first bought noise cancelling phones.
From what I recall (and don't have any references on me) this is because they tend to filter out the lower frequency sounds, which your brain associates with a pressure change.
After some time wearing them on silent, I've found that the sensation goes away. Still, I usually use rainymood.com to block out the other subtle sounds that get through.
From what I recall (and don't have any references on me) this is because they tend to filter out the lower frequency sounds, which your brain associates with a pressure change.
After some time wearing them on silent, I've found that the sensation goes away. Still, I usually use rainymood.com to block out the other subtle sounds that get through.