What does Multiplex mean?
Karaoke discs are made in two different ways, multiplex and non-multiplex.
Multiplex disc’s, generally have each song on the disc twice, once with a removable vocal demo singer and once again without the demo singer. Non-multiplex disc’s have the song on the disc only once, without the lead singer.
Multiplex is a type of CD+G that usually has the same songs in two separate groups (Usually in 10’s) The first group usually has just the lead vocals on the left channel and just the background music on the right channel. The second group has the usual Karaoke background music on both channels with no lead vocals. What makes Multiplex CD+G’s interesting is that you can use the Vocal Partner and Vocal Cancel to manipulate the lead vocals.
