You don't need "AI" for this. Here's an article with several suggestions for free- and open source solutions:

https://arcinarci.net/open-source-noise-cancellation-software/

If the software you use for recording has any support for audio plugins, that's probably the easiest solution.

The guy behind faircamp is working on a similar approach to videos: https://simonrepp.com/hyper8/

A static site generator for videos.

I could care less about “growth” if that growth means an influx of disgusting racists. I’d much rather have a smaller, positive community that defends members of targeted communities.

You have no idea how good it is to see this attitude from the central developers of the platform. How much better wouldn't the world be if more people were thinking like this? Kudos to you all!