Detection of Pitched/Unpitched Sound Using Pitch Strength Clustering

http://ismir2008.ismir.net/papers/ISMIR2008_274.pdf

Uses the aforementioned SWIPE' algorithm, which in this case is
probably a bit -too- accurate to represent the way F0 estimation
actually works in humans. MATLAB code has been provided, so I'm going
to download it as is and see if it just works without much fiddling
around.

-Mike