My living space has constant supply of a variety of annoying sounds thanks to a lack of proper sound deadening. I was wondering what is the practicality of creating an energy "leech" array using microphones? my current circuit that I am thinking of is using a lav-mic, slapping a full bridge rectifier across the output. That feeds into a small ceramic capacitor for some semblance of smoothing. Five of the previously mentioned would be wired in series and feed into a 5v supercap and then a joule thief will step up the voltage to 5v and will be fed into a li-ion battery management (charge/discharge circuit like the ones found in battery banks). I was thinking if there is such annoying noises might as well put them to use.
TL;DR: Is it feasible to create a low-power generator from microphones to harvest power from annoying noise sources?