Headphone specific equalization
Wavelet may be the most powerful equalizer for Android to date that doesn't require root or an unlocked bootloader. It is capable of processing audio system wide and supports optimal equalization settings for over 2400 headphones. That's way more headphones to choose from than the Sonarworks and Dirac android apps combined have to offer.
Supporting this many headphones has been made possible by Jaakko for letting me use his awesome AutoEq project. And a big thank you to Nemuritor01 for introducing me to the possibilities of audio customization in Android 9+ and some initial ideas.
The app features a minimal UI with plenty of options for customization:
You can use AutoEq to equalize your headphones to the Harman standard. The graph visualizes the compensation applied.
There's a 9 band graphical equalizer you can use fine tune the result or set up when your headphones don't appear to be available in the database.
The effects section offers effects such as bass boost, virtualization and reverberation. There's a bass tuner option too to give your beats that little extra thump, or reduce bass if you're not a basshead.
At the bottom you can find the gain controls. There's a limiter allowing you to reduce dynamic range and a channel balance feature for when you find one channel playing too loud or if you just want to reduce the overall output volume.
Wavelet can be downloaded here from Google Play.
Features displayed vary on the mode you're using and what output device is connected.
I strongly recommend checking out the README and read up on legacy mode to help you get the best experience
Wavelet, App for all devices (see above for details)
Current Stable Version: 20.06
Stable Release Date: 2020-05-11
Last Updated 2020-06-13