Hi community,
at first I have to say sorry. I did a mistake and merged AudioDSP to early into the official Kodi repository. Most of the platforms simply crash in an inexplicable behavior. This could make you sad or explode your ears 
, which is quite bad if you wanna enjoy your media content.
Because of that we officially don’t ship AudioDSP binary add-ons for the V17 Krypton final release version.
Another reason was that I didn’t had enough spare time to fix all platforms and test them enough.
At some point I was very far in development of my new test add-on. It has a nice code base, which allows me to implement new processing modes in much less time than what I had before. If I have the fully functional algorithm it’s just 3-4 hours of work for a ready prototype. Furthermore this code base can be used for new add-ons in a seamless way.
But then I noticed very painfully that AudioDSP isn’t ready for such a nice add-on code base. I tried to work around the limitations of the software architecture of AudioDSP and did some fixes. But it wasn’t very successful.
I was very frustrated, because I wanted to implement features like custom modes (you could define a fixed filter in the UI) or make it possible to use modes multiple times.
Long story short answer, I stopped the development and went back to my desk to find new ideas. In the end I started to rewrite some parts of AudioDSP, but currently don’t have anything that the community could use.
Another issue is the usability, most of the people I tried to explain or show AudioDSP, wasn’t able to use it.
I can’t say when AudioDSP will be officially available agian, but I’m sure you will notify it here in the subforum.
So please do have a little patience until I did my rework of AudioDSP. Hopefully with success so that we will have new features and a better code base to maintain.