TL;DR Community supported Github repo of measurements and EQ presets + new feature in Roon to apply those presets.
TL;DR;TL AutoEQ for Roon
Should be interesting. Is Headphones.com involved?
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Having just spent hours playing with the OPRA EQ’s for the HiFiMan Edition XS and the thing that most intrigues me is how very similar they are to each other yet how very different they are from Resolve’s EQ published way back when the headphones were reviewed. It’s almost like they have different targets (perhaps they do?). I’ve been using Resolve’s EQ for ages so it was interesting to hear the difference.
Resolve’s has a lot more treble energy somehow, looking at his suggestions in comparison his settings don’t seem to bring the 2900Hz range down at all, whereas all the others seem to, by quite a bit… so who is correct I wonder, that is correct to the target curve not to taste? 
Certainly I am finding Resolve’s setting a bit bright now, yet the others seem to change the actual tonality somehow in a way I don’t appreciate, almost like a phase shift? 
I honestly have not had a chance to play with the EQ presets yet. I’m mainly interested in the repo of measurements as I usually do my own EQ but need a starting point.
I don’t think @Resolve EQ’s to a target so much as uses Harman and/or the Headphones.com preference range as a guide. I expected the OPRA EQ presets to be similar to oratory1990’s in that they use a “hard” target. However you imply there are multiple presets for Hifiman Edition XS so now I don’t know.
OPRA could very well use a proprietary target with some variation for different preferences like SoundID does. And therefore Roon might consider that IP and so does not disclose. Or it could be that the EQ presets come from the audiophile community and who knows what, if any, target was used.
I’ll play around with it here soon and post my thoughts.
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Doing some investigation myself and it seems Resolve uses the Harmon Combined target, which seems pretty much the same when I tracked down the OPRA sources on AutoEQ - with a search on Edition XS and ‘all’ instead of ‘uniques’.
These seem pretty similar (and include the Oratory1990 version) and using Roon’s OPRA link to create a preset out of each of them I can see exactly where the main difference is. Resolve seems to use a 3dB lift at 1440Hz that no one else touches and he doesn’t bring down the hump at 1980Hz ish like the OPRA versions all do… likely a result of their software as opposed to his one presumes?
I had some time to upgrade Roon and try this out. Unfortunately it is currently just a clone of AutoEQ. This is not such a bad place to start as there is plenty of measurement data available and Roon does make it very easy to use the EQ presets. But with all of the talk about leveraging the community in the announcement, I was expecting that Roon had been able to get involvement from other sources of EQ presets like oratory1990 or maybe even Headphones.com.
You can get Orotory‘s preset in OPRA.
I see AutoEQ presets based on oratory1990’s measurements, but I don’t see any oratory1990 presets. What headphone model do you see it for?
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Ah ok, I thought that Oratory1990 in OPRA meant, that this is an EQ setting according to Oratory’s target.
If it is not and it is „only“ a clone of autoeq targets based on different measurements how could EQ presets based on Oratory‘s target be implemented in OPRA?
Edit:
I am a bit confused. Because for the Sennheiser IE600 there is a preset from KAZI which is obviously (or at least for me) not according to an autoeq target as it is flat in bass.
Oratory uses the Harman targets. I think AutoEQ does as well. But I’m not interested enough in AutoEQ to have kept up over the past few years.
I think you’re mixing up your terms. The target is the FR you want to achieve. The preset is the headphone specific PEQ settings to tune the headphone to the target.
In OPRA it shows the source of the preset at the top, “AutoEQ” on every headphone I can see, and the source of the measurement the preset is based on below, could be oratory1990, KAZI, etc. The target is not shown in OPRA, but I assume it is whatever AutoEQ uses by default and/or what is used as a target for all of the presets in the AutoEQ Github repo.
It is not a clone of the AutoEQ repo with different measurements. It just uses the AutoEQ repo as a source of data, seemingly it’s only source of data right now. So in effect a clone of the AutoEQ repo with the same measurements.
At least you can take the OPRA preset and add it to the Roon parametric EQ settings. That allows you to modify it from there, which is nice.
Ok well the intent is to have other sources of data, but for now just AutoEQ:
Where is the data coming from?
This repository is intended to aggregate the output of major creators of EQ curves from the headphones communities. We have kicked things off by ingesting and cleaning the data from the AutoEQ project, as it is already released under a permissive license.
Early collaborations are under development with likeminded leaders such as oratory1990 and we look forward to sharing updates soon.
We hope that over time other major creators of EQ compensation curves will choose to be a part of this effort, and we look forward to collaborating with the community to see where you want to take it next.
Ok, but regarding one target for all presets I disagree, as for the IE600 between the presets labelled with Oratory and KAZI were different targets used, as the IE600 has with the KAZI preset muss less bass as with the Oratory preset.
Edit: When looking the autoeq repository from Jaako it looks like they are using always the same target.