Nightingale – open-source karaoke app that works with any song on your computer 4 months ago
This is cool, though for me personally my minimum quality bar for the lyrics and sync accuracy in karaoke is much higher than what's achievable with WhisperX / Force Alignment. I moved on from that approach about 2 years ago in my pursuit of high quality karaoke.
If anyone's interested in tooling to generate karaoke videos which unlocks a much higher quality bar, check out my karaoke-gen project - 2 free generation credits here: https://gen.nomadkaraoke.com, open-source code here: https://github.com/nomadkaraoke/karaoke-gen