So I'm trying to make some stuff which is unimportant for this thread and I want to use a sound. The problem is, I can't find the raw sound, anywhere! It's probably because I don't know what it's called, so what's it called? What's the technique used to make it? etc.
It's very faint in this:
I'd describe it as a swooshy sound (can you tell how amateur I am?) It also variates in frequency. My friend said that it was in a lot of sci fi movies in the 80s/90s.