This is a really interesting technology. If it were packaged in an actual consumer-oriented product (and wasn't insanely expensive) I'd definitely give it a try

This is a really interesting technology. If it were packaged in an actual consumer-oriented product (and wasn't insanely expensive) I'd definitely give it a try. One of the main annoying noises I have to deal with is the constant hum/rumble from a ventilation fan on the roof of my building. Seems like exactly the sort of problem that a noise-cancelling speaker could solve.