RexSystem1 voteoriginally by @hazencruz on GitHub1 reply
If you're on windows (lol) try using voicemeeter and having fluxer just capture the "mic" cable from that.
If you're on linux, use something like pipewire/wireplumber and find a gui for it, and just connect your post processing output to fluxer on the gui.
RexSystem1 voteoriginally by @DarkLordDLDL on GitHub
Can confirm that using VoiceMeeter (Potato in my case) does work. However, I had some issues getting Fluxer to accept that the audio were coming from (and going to) VM, but after a while it had solved itself without me really changing anything (the settings that ended up working were the settings that didn't want to work while I was trying to make it work).
I do also use VM's 4 digital cable addon package.
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