This sound kind of reminds me of one of these "Space Engine Sounds" on youtube, especially the Firefly/Serenity themed track.<p>I used to love it for sleeping, it's rather relaxing.
My initial reaction was like "Oh, like white noise!"<p>I could not have been more wrong. There is very clear structure in Perlin Noise. Great write-up and I learned something.
Didn't really understand how he got to it, but would be interesting to hear this noise source across the larger spectrum (not just the low freqs)<p>It might sound/be more natural/fractal than pure white noise (+LPF), I can't tell. But it won't work to drown out office chatter because its the high freqs there that matter.
It might be interesting to use Perlin noise to craft a melody by mapping the reals onto a musical scale.<p>In particular, it seems like it would have some nice properties for melodies since it will keep the melody in a comfortable range and won't throw in a bunch of large leaps.
LOL. I just finished putting up a pergola with a clear polycarbonate roof. The recommendation is to apply a foam adhesive tape to the purlins (battens) to prevent noise caused by movement of the sheets from thermal expansion. I<a href="https://www.bunnings.com.au/suntuf-access-25mm-x-20m-purlin-tape_p1010469" rel="nofollow">https://www.bunnings.com.au/suntuf-access-25mm-x-20m-purlin-...</a> - I thought it was a strange topic for HN ;-)