This sound-suppressing silk can create quiet spaces

That may be cheaper than building my house of stereo ;)

A wind screen like that in a convertible when placed behind your listening chair along with a low speed fan whose blades are treated with natural low shear materials will increase laminar flow in and around your listening space. Result is better everything. TomD

Thank you so much for posting. I've been kinda obsessed with how noise cancellation could graduate from earphones to bigger scales, but the best answers I've always gotten is that it would take too much energy or would be not feasible for other (practical engineering) reasons.

This could have major (positive) health implications. See this story (about noise) in the New Yorker.

@hilde45 

The story in the New Yorker is interesting and enlightening.  I had never thought of how far reaching these noise concerns are.  Thanks.

@abnerjack You're most welcome. And if we, in audio, have not made the connection, it's hard to imagine others fully realizing it (other than the biologists).