Could you convert noise pollution into energy?

Since Microphones turn sound energy into electrical energy, you think you could generate any usable amount of electricity from an array of dynamic or piezo microphones near a noisy intersection or metropolitan area?

jeff-o7 years ago
Well sure, but it wouldn't be very efficient nor would it produce very much energy at all. Do a search for piezoelectric energy harvesters. I think Linear Technology actually makes a chip designed for this purpose.
As Jeff says, Linear Tech do a very clever chip that does the work for you.

http://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1003,C1799,P90393
lemonie7 years ago

Yes in theory, but to be worthwhile you need to be thinking about ear-damaging levels for starters.

L
Its been considered for "energy harvesting" applications.