To get the quasi-karaoke (mono) track, the still left channel of the initial audio is subtracted from the right channel. The Sega Saturn also includes a "mute vocals" attribute that relies on the same basic principle and is also able to adjust the pitch in the tune to match the singer'

Quite a few VCD gamers in Southeast Asia have a created-in karaoke functionality. On stereo recordings, one particular speaker will Engage in the tunes Using the vocal monitor, and another speaker will Enjoy the tunes with no vocal observe. In Asia, a karaoke box is the preferred form of karaoke