- Open Settings and tap Accessibility.
- Scroll down to find AirPods.
- At the bottom you’ll see Audio Accessibility Settings.
- Then at the top of the screen, tap on Headphone Accommodations.
- Finally, tap Custom Audio Setup.
From here you’ll just be following the on-screen instructions. A generic song will play and you’ll be asked to choose which version sounds better to you. If they sound the same then tap Version 1. At the end your audio will be adjusted based on your preferences. For example, my choices led to iOS boosting the high frequencies, or Brightness.