I’ve heard white or pink noise works for this. But technically speaking if you had a microphone and some device/software to reverse the polarity of the incoming audio and play it.. theoretically it should cancel out the sounds altogether.
fascinating..

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I got my first pair of noise cancelling headphones and it is like bliss using them. Makes me think I’ve got some sort of problem with me, besides being slightly ADD and OCD.

Technorati Tags: Anything, Cancelling, Headphones, Noise, Treat, Used