Comment by wackget

I'm having the same problem. I found this command on a random site[1] which improves it a bit:

    play -n -n --combine merge synth '24:00:00' brownnoise band -n 750 750 tremolo 50 1

If possible I'd like to replicate the brown noise preset used on this[2] site.

If you come up with anything please let us know.

[1] https://www.cloudacm.com/?p=3145

[2] https://mynoise.net/NoiseMachines/whiteNoiseGenerator.php