[sdiy] digital noise band generator?

[Paul Perry]

I expect that there may be a simple (algorithm running on micro) way to 
generate a band of white noise.
And maybe even a way to dial in a few parameters to tune it.
I must confess that my immediate need is to aid a friend suffering from 
tinnitus, but doubtless it would be a handy thing to have in a modular rack!

OK, I'll probably end up with a standard noise source and analog filters - 
but I am curious to hear what the algorithmists have to say.

paul perry Melbourne Australia