I have two audio tracks, X and Y, which are similar, but both have things added to them.
I want to take X and Y, and produce a new track Z with only the lower value of every frequency of each track at each time. In other words, I want to logically AND the spectra of X and Y.
This question is different from Conditional math (intersection) to join two audio tracks because while that one was trying to do vocal isolation with linear operations, here I'm trying to perform a generalized boolean operation on two tracks. (Adding two tracks together is almost an OR, and subtracting them is almost and OR NOT)
I would prefer to do this in Audacity, but if it is impossible in Audacity, and possible in other programs, I may switch if I have to.