Headphone corrections
Every headphone correction, credited
FluidEQ ships the whole OPRA library offline. Every correction in it was measured by a person or a lab and fitted by a person or a project, and their names stay on every curve, in the app and on these pages.
- oratory1990 Harman Target
- AutoEq Measured by crinacle
- 6,229headphone models
- 12,594corrections
- 712brands
- 24people and labs who measured them
How a correction reaches you
Every correction passes through four pairs of hands before you hear it.
- 1MeasuredSomebody puts the headphone on a measuring rig: crinacle, Innerfidelity, Rtings, oratory1990 and many others.
- 2FittedAutoEq, oratory1990 and Rtings turn the measurement into EQ bands that bring the headphone to a target.
- 3CollectedOPRA, an open directory from Roon Labs, gathers the corrections under the CC BY-SA 4.0 license.
- 4PlayedFluidEQ plays each one exactly as published, as a layer of its own beside your own bands.
Who made the corrections
A correction is a set of EQ bands fitted to a measurement. These three made all 12,594.
Who measured the headphones
AutoEq fits its corrections to measurements other people published. These are the ten it used most, and each is named beside every curve it measured.
And the rest, with how many of AutoEq’s corrections each one measured:
- HypetheSonics 283
- RikudouGoku 278
- Filk 246
- Harpo 226
- Fahryst 225
- Regan Cipher 213
- kr0mka 208
- Kazi 168
- DHRME 132
- freeryder05 93
- Auriculares Argentina 90
- Bakkwatan 54
- Ted's Squig Hoard 15
- AutoEq 1
The library and its license
The corrections come from OPRA (Open Profiles for Revealing Audio), a project of Roon Labs, used under CC BY-SA 4.0. FluidEQ changes no curve. The copy it ships, and the correction data on these pages, are CC BY-SA 4.0 too. AutoEq is © Jaakko Pasanen, MIT licensed.
Find your headphones
Every brand in the library, with how many of its models have a correction. Each model’s page draws its corrections and gives every one as Equalizer APO settings.