Ways to identify if music has vocal timbres in it? The human voice is singular because it has a specific frequency spectrum and fast transitions between vowels and consonants.

What are good and computationally fast ways to detect if there is probably a voice contained in a noisy music, the amount of the song where there is vocals, and the type of vocals in different kinds of music, that perhaps have beats and guitars and other sounds mixed into the vocal?
Scalable audio separation with light Kernel Additive Modelling

http://www.loria.fr/~aliutkus/kaml/