Spy phone and keyboard

Question

Android

Inspired by habrahabr.ru/post/200912/ .

Who knows. Will the microphone sensitivity of an average android phone be enough to be able to compose and distinguish between the pressed keys on an average keyboard from a distance of a meter with a probability of 80%? With the software part, everything is clear (I haven’t completely forgotten the signal processing yet) - but I can’t imagine physics well.
(As a topic for a diploma, students do not look bad. But you need to be sure of the feasibility ;-)

Answer 1

Of course, I just think neural networks are needed, because I think each Keyboard needs its own corrected algorithm, but in any case, we are waiting for your results! Also give a topic for a plugin for chrome captcha hacking) I'm tired of entering captchas on Habré.