title: True Random Number Generator using atmospheric noise
body: <p>I have to build an One Time Pad system and for that, I have to build my own TRNG. I want to know how to make record atmospheric noise and use that to generate random numbers. I've tried so far to record a .wav file and read it in Java, but the values don't seem very...random. Any suggestions? I know about Random.org, but I can't really use their generators, I have to build my own, so what I want is some insight into how the folks at Random.org have built their numbers generator, with atmospheric noise as a source of 'randomness'.</p>