The Equalizer Pie works starting from Android P.
Application lets you adjust the frequency envelope of the sound with 14 bands to enjoy music.
Adjust audio balance between channels (Right/Left)

Main Features:
* 14 bands equalizer
* Audio balance
* Preamplifier (to boost sound volume)
* 14 presets (Default, Default for Bluetooth headphones, Jazz, Rock, Classic, Pop, Deep-House, Dance, Acoustic, Soft, Ton compensation, Voice, Lounge, Flat).
* Customizable preset

Works perfectly with audio and video players that open audio session. (Google Music, YoutTube Music, Deezer, etc.)

We recommend you to restart player after installing equalizer.

Known issues:
It makes noise sound with bluetooth headphones when any of frequency band summary level (preamp + level of band) is more than 0.
That is why we recommend you to use Preamp and decrease level for bluetooth headphones.
(Issue repeated on Pixel 2 and must be fixed in Android Q)