About this app

Enjoy your favorite music player in a highly customizable way with a 7-31 band equalizer, multiple sound presets, balance and pre-gain volume.

Choose between 7, 11, 15, 21 or 31 bands for the equalizer - depending on how much precision you need.

Whether you want to adjust uneven headphones with different frequency and volume output - or compensate a hearing loss - this app is for you.
The ability to pinpoint a frequency band for a particular ear/side makes SpotEQ31 unique.

From version 2.0 there is a built-in media and podcast player.

From version 1.10.5 this app doesn't contain any ads. You can use it for free to change the sound quality of your music player app and, if choosing to, unlock basic features like saving custom presets for a one-time fee. There is also a premium subscription available.

If you have difficulties getting the app to work please retry the setup instructions carefully and then reach out for support by mail.
Please do not buy features before you managed to connect your music player successfully.

The app EQ bands show center-frequencies, meaning the lowest band should also affect the lowest possible Hz your device can reproduce.

Features:
- 31 bands (choose down to 7 bands EQ)
- Choose Joined or Separate sides EQ configuration
- Multiple presets, save your own
- Export/import presets
- Works in the background, for long-running audio sessions
- Great for compensating sound differences in headphones
- Balance an uneven hearing impairment, right/left ear
- Boost bass or clarify treble
- Limiter and 3d sound stereop expansion
- Set extra loudness with the pre-gain volume
- Volume control directly from notification
- Visualizer
- Works on Android 9 (Pie) and up
- Tested with several music apps. See: https://sites.google.com/view/spoteq-musicapps

Follow the in-app instructions for best results
1. It's safest to uninstall all other equalizer apps.
(Many problems arise from having multiple apps using audio effects)

2. Press ENABLE in SpotEQ31
A notification indicates the app is working in the background.

3. RESTART PLAYER APP and play music
Force stop the app, then reopen and play a new track. Easily hear change with preset Low Cut.

Please checkout the in-app instructions and our channel for tips on how to use this app: https://www.youtube.com/watch?v=iIsRkPeeQgs

Fix bad headphones
If you have bad or broken headphones/earphones where the sound is uneven in left and right ear, you should be able to compensate for this by using this app. Some headphones may sound better and avoid distortions if you lower the pre-gain.

Improve your music experience without a hearing aid
If you have a hearing impairment and are using a hearing aid in your daily life, you can try to compensate the sound with this app. Just adjust both left and right side frequency bands, and depending on your specific hearing loss you might find a setting that hits your sweet spot for listening to music without your hearing aid! Consulting your audiologist or audiogram is advisable. Sometimes a simple volume balance to left or right side can do wonders.

Thank you for trying out SpotEQ31! If you have any suggestions please contact by mail.

== Disclaimer ==
This app is not connected in any way to any other music player app/company.
Listening to music at a too high volume for a too long time may damage your hearing. Be especially careful when using earphones with this equaliser. Also beware that your device or speakers may be damaged by loud sounds. This app is provided 'as is' without any kind of warranty, and you may use it at your own risk.

New features

* Updates for Android 13
* Bug fixes

App Permissions

Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to modify global audio settings.
Allows an application to record audio.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows applications to open network sockets.
Allows applications to access information about networks.
Allows an application to change the Z-order of tasks.