Interesting, I've seen the claim of NC induced tinnitus a few other times. In terms of noise induced hearing loss it the canceling should not be an issue (since

Interesting, I've seen the claim of NC induced tinnitus a few other times. In terms of noise induced hearing loss it the canceling should not be an issue (since in the worst case of a complete misprediction you get only a doubling in intensity which), but since no canceling is perfect maybe the residual ends up adversely affecting the auditory pathways at a neurological level somehow.