Video Players & Editors · Open source
Equalizer314
bearinmind
System-wide EQ with multiband compression, limiter, and audio-visual feedback.
Opens the official F-Droid page
About Equalizer314
To start off there is really no "free" and/or "open source" alternative to Wavelet and Poweramp EQ that pairs the full DynamicsProcessing API with real audio-visual feedback, and I felt like after using both of those apps among other various EQ apps that there were huge shortcomings in terms of the features & accessibilities they offered. When I started developing this app I wanted to have both a powerful parametric eq function with minimal permissions; this is why I choose to use both the DynamicsProcessing & Visualizer APIs as the framework for this app as you only need minimal permissions for both of them to work in tandem. There are shortcomings from both these APIs, but I'll discuss more of that later.
This app is built off of DynamicsProcessing API; this is the same API that Poweramp EQ & Wavelet both use but I felt in some aspects they weren't really being able really squeeze out the max potential that this API can offer.
As someone who comes from the audio production & IEM world I have a lot of experience understanding what both sides of those worlds want and wanted to be able to take advantage of both to create something that met my creative endeavors.
Using the Visualizer API I wanted to give users a way they can reliably cross reference visual data with audio data; this is both useful for the main EQ portion as you can visually reference audio changes you make, but this comes more into play with the Limiting & Multiband Compression sides of the app. While these features are for use in the DynamicsProcessing API; and many apps like Poweramp EQ & Wavelet (who premium locks these features); they just add knobs/sliders in and expect the user to understand exactly how these features work and without real audio-visual feedback, users aren't really able to take advantage of these features in their full potential. This is the reason why many DAWs and VST Plugins use audio-visual feedback with these functions specifically.
Using Visualizer API with these DynamicsProcessing features; you're really able to get an intimate audio-visual feedback loop that gives you complete control over your audio framework.
This app is free and open source software (FOSS) licensed under the GPL-3.0 License.
What's new in 0.0.22-beta
- New in Experimental: Virtual Surround (issue #128, work in progress). Import a HeSuVi .wav or .irs file (Dolby Atmos, DTS Headphone:X and the rest of the HeSuVi collection) to make headphones sound like speakers in front of you. It records other apps' audio to process it, so it works in apps that announce their audio, or in every app after a one-time adb permission. - 简体中文 added, translated by LJHQWA (issue #131). - Presets no longer pick up Table mode's empty rows (issue #132). Ghost 0 dB ban
How to install Equalizer314
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Equalizer314 from your app drawer.





