>By the way: You might want to try recording something while walking around with your phone in your pocket. My guess is that your clothing will muffle sound.
Many android phones detect being in pocket and lock screen automatically to prevent accidental touches.
I think it works the other way: display won't turn on if something is blocking the proximity sensor, so you won't accidentally dial someone, but if I place the phone in pocket while the display is on, it stays on.
Many android phones detect being in pocket and lock screen automatically to prevent accidental touches.