I believe pink noise, and white noise, are first of all random noise, like hiss, used for testing electronics and acoustics. I think that pink noise is equal enery per ocatve and white noise is equal energy per decade. For example, pink noise would have the same energy in the 20Hz to 40Hz range as there is from 40Hz to 80Hz. White noise would have the same energy from 20Hz to 200Hz as there is from 200Hz to 2,000Hz. I am sure someone else here can give a better explanation. Please help!
