Dave, I always thought that "white noise" was something playing the background, whether TV, radio or music, to just fill the silence to keep it from getting "deafening" or to cover up, say traffic noise.

If I listened to the noise between radio stations, I'd go APESHIT!!! Hubby keeps "listening" to a station even when another one bleeds in or when all he gets is static! YIKES!!!!!! I would call that RED NOISE because it makes me see <font color="red">RED</font>!!!!

Was it in Pink Noise that you explained about the octaves? It's the same sound, but it could be from one octave, which is eight notes, either below or higher than the first one. It could be several octaves (several sets of 8 notes) in difference. I remember that from my days of piano lessons!