Building Your Karaoke with Midifun Karaoke App
Midifun Karaoke is a free Android app that works offline.
https://play.google.com/store/apps/de...
This short tutorial will teach you how to create your karaoke with Midifun - adding of lyrics highlight too. :)
Disclaimer:
Midifun plays the music you add as-is. Please do not expect that it will remove the vocals from your audio files.