Doblon Karaoke Sound Tools is an easy to use software package for karaoke audio processing. All these tools can be fine-tuned in real time, and work with MP3, WAV, BIN, and CDG files. If you use a karaoke BIN or MP3+G file and use tempo changer, the graphics part of the song will be adjusted so the lyrics are in sync with slower or faster version of the song. No other software has this feature.