[jerf]

Noise cancelling headphones have always hurt my ears after a relatively short time using them. One of the ways they work is to shove some of their inevitable distortion up into the high frequencies, above what anyone can hear. I've never heard anything, but they definitely hurt my ears. I don't trust them. This is data. It isn't very solid data, because I can't give you sound pressure levels or anything, and it isn't a lot of data. But normal headphones simply don't make my ears hurt, even after hours and hours of usage in a day, which is most every work day for me now.

(I mean active, "true" noise cancellation generating "anti-sound" for your eardrums, not the passive things labelled as "noise cancelling" because there's apparently no legal definition of the term and anyone can call anything "noise cancelling".)