Later when it was pointed out to me that is is "a thing" I started to recognize them in other songs. I sort of miss being naive.
There's a line from one of Feynman's books where he is arguing with an artist friend who dislikes how Feynman (science generally) dissect a rose rather than just admiring its beauty. Feynman is incredulous as to how knowing more about a thing can take away from its beauty. (I may be slightly mis-remembering this exchange.)
That always bothered me because I felt that naïveté is a thing you lose with knowledge and that is not always a good thing.
Walt Whitman's "When I Heard the Learn’d Astronomer" [2] instead resonated with me.
[1] https://en.wikipedia.org/wiki/Shepard_tone
[2] https://www.poetryfoundation.org/poems/45479/when-i-heard-th...
There's an Elliot Smith song with it as well ... I'll have to try to recall it.
You can direct your attention at one or the other. Maybe both to a degree but concentrated deep focus demands exclusivity.
I've considered 3D printing custom shells for it to further tune the sound profile to achieve the brown noise ideal.
If you like ambient music, I love Brian Eno’s ‘Reflection’ album and use it for a similar purpose as noise. But I eventually got sick of hearing it again and again, recognising the same bits... Then I found he has also released the original endless generator (from which the album is just an hour-long recording) as an iOS app. It’s wonderful. It’s just endless Reflection, never repeating, always sounding new, but always sounding like Reflection. Expensive but worth it, if you liked the hour-long recording.
Winter problem solved. No bluetooth or batteries needed; just a wall wart or maybe USB-C.
Running the cable would be the trickiest part if I had close tolerance metal window frames. In that case maybe a bluetooth mic would be best, but I'd have to figure out how to weatherproof it.
Similarly if I listed authentic recorded ambient noise, once I recognise a loop point, it becomes extremely annoying.
That's why I can't use tools like mynoise.net.
I had a couple of solid 8 hour recordings from a cafe or office, but after a couple of listens I kind of learned it is a recording and they no longer work. Basically rather than focusing on doing work etc. my brain is listening for faint phrases, whether I heard it before etc.
The workaround I found is that I just have a window open so I can hear street noises, but this is going to be troublesome during the winter.
I am planning to start making recordings so maybe if I have a solid month worth of ambient noise, I will be able to trick myself it is not a repeat if it takes a month for a full rotation.