Hi Arlo - I agree - I don't think AUFXPeakQ can act as a host but can act as an effects app. The same company produce AudioShare which can act as a host and can also import AUFXPeakQ as an effect. If you try AudioShare you will see the issues I mentioned previously.
That's what I was thinking, AUFXPeakQ is a node only, and so is my app, so they couldn't be used together without a host app to connect them. But if that's the case, there are probably better apps to use for the host than AudioShare, which seems like more of a utility than a live sound tool.
I have already purchased the Advanced Audio and tested it with AudioShare - I can only get AudioShare to accept SLM if I first play an recording on SLM. But even once accepted the audio doesn't come through AudioShare so there may be an issue there.
The requirement to play some audio before the audio source appears seems normal to me. I wouldn't do more work on the specific problem with AudioShare unless you really intend to use that app.
One option would be to simply use a free program, like Audacity, to re-mix the tracks to correct the EQ problems.
IMO, you're much better off to correct the problems at the file level, rather than trying to have an EQ `chase' the problems for all of the tracks.
I agree that if you are going to apply the same EQ to a recording every time you play it, it would be better to re-render the file with those EQ settings. Regardless, my app should work as an audio source for inter-app audio apps and I can help troubleshoot that if you see a problem.