Lead vocal suppression of stereo audio files

Many commercial CD, VCD and DVD players have vocal mute feature for Karaoke purposes. However, most commercial systems obtain the output by subtracting the right channel from the left channel. This simple technique however has many drawbacks and does not work in all cases. Most notably when the voice of the lead singer exhibits a phase shift in the left and right channels or recorded in a non-balance way in the left and right channels, the simple technique fails. The project would like to analyze the common problems encountered and come up with a solution to improve on the vocal suppression algorithm. Master of Science (Signal Processing)