I'm a fan of pink noise, which has a distribution of frequency/power that is closer to a lot of natural sources, like the sound of a waterfall. It's only a gue

I'm a fan of pink noise, which has a distribution of frequency/power that is closer to a lot of natural sources, like the sound of a waterfall. It's only a guess that we're biologically primed to find it more comfortable, but I think it's a pretty good guess. https://en.wikipedia.org/wiki/Pink_noise https://en.wikipedia.org/wiki/Pink_noise