https://bugs.winehq.org/show_bug.cgi?id=46918
--- Comment #11 from Ethan Lee flibitijibibo@gmail.com --- Played around with the official XAPO example projects and discovered some interesting rules from some debug assertion failures. I also discovered that SetOutputVoices was a complete mess and was doing things in just about the worst order possible. I've made a new commit to address all of these things:
https://github.com/FNA-XNA/FAudio/commit/f6df13f507261268debef92846f68b10792...
So now it should have a valid MaxFrameCount when applying an effect chain on a voice with no sends.