process.md

Q: what is the principle of cooley-tukey?

• ✔ Frequency points × x's are calculated repeatedly for each X, so just collapse already known data. Do not recalculate already known things.

Q: can we do straight DFT in shader? looks promising O(N)

• Overcalculation happens, but happens per-fragment.

Q: can we use cooley-tuckey in parallel? How?

Q: what if to use formants to estimate spectrum?

• Each formant randomly moves by unit circle, and takes value from the initial signal by that.
• I guess that I can do soundprint by approximating initial noise by formants. By that I get spectrum approximation and