I did some research on this project, and it does not seem that there is a program that can actively receive sound and then find the inverse of that wave and play it out. On a level of 1 to 10 how difficult would a project like this be programming wise? In theory it seems pretty easy.

I believe some cars have active noise cancellation. If you google - cars active noise cancellation - you will get quite a lot of information.

Off the top of my head I would suggest that one problem would be the ,admittedly short, time needed to process the unwanted noise and output the same in anti-phase.

Are you talking about doing something like this? Found these on bose.com.

 

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