I use this one-liner: play -c 2 -n synth pinknoise band -n 2500 4000 reverb 20 Works like a charm - when I'm working, reading or just trying to get a quick

I use this one-liner: play -c 2 -n synth pinknoise band -n 2500 4000 reverb 20 Works like a charm - when I'm working, reading or just trying to get a quick nap in some noisy (sic!) environment.