I'm trying to work this one out in my head ... You've left a smartphone lying around and you want to read accelerometer data to determine what was said in prox

I'm trying to work this one out in my head ... You've left a smartphone lying around and you want to read accelerometer data to determine what was said in proximity. Just turn on the mic instead. You've left a smartphone lying around to remotely read light bouncing off it ... accelerometer not required. Also, just turn the mic on instead.