I would summarize the differences between noise types this way: White noise: equal energy per Hz (flat) Pink noise: equal energy per octave (-3dB/octave) Bro

I would summarize the differences between noise types this way: White noise: equal energy per Hz (flat) Pink noise: equal energy per octave (-3dB/octave) Brown noise: spectrum of Brownian motion (-6dB/octave) White and brown are easy to create mathematically.