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This app uses your Android phone’s LEDs to create a light show for your music

led music effect app for android nexus notification light
On Android devices, the popularization of active display and imitators has basically negated the need for built-in LEDs. After all, what more can a blinking light tell you than a screen? Luckily, crafty developers are finding other uses for the neglected multicolored diodes. One app for Android, LED Music Effects, turns your device’s LEDs into a basic music visualizer.

The app, which requires root access to work, reflects the rhythmic punctuation of songs on your smartphone’s built-in LEDs. As the app is currently configured, a single LED alternates between three colors (up to three work synchronously).

The developer has posted handy videos to illustrate the effect on a few different devices, one of which you can see in action below:

LED Music Effect supports a nearly endless list of music players, including but not limited to Google Music, Spotify, Rhapsody, and Poweramp. The developer has only tested the app on a few devices, namely Sony Xperia phones, but is confident it’ll work on most smartphones.

The app is listed as a free download on the Google Play Store.

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