For a given geographic location, get the readings of barometric pressure for a whole year, remove DC component, normalize data to [-1,1] and save it as a wav file. Play it looping thru a sample player. Combining sounds from different latitudes, i.e. sahara, antarctica, australia, etc, we can get an authentic sound from the earth.-- piluso, Feb 07 2016 Humidity readings as a counterpoint.-- bungston, Feb 07 2016 As a perk we could play it backwards.-- whatrock, Feb 08 2016 random, halfbakery