KlustaKwik is an open-source C++ and Java program for automatic clustering of continuous data into a mixture of Gaussians. The program was originally developed for sorting of neuronal action potentials, but can be applied to any sort of data.
NOTE (25/04/12): For those interested in trying the new masked version of KlustaKwik designed for large dense electrode array, download KlustaKwik3.0.1 in the maskedKlustaKwik folder.
UPDATE (04/07/12): Bugs have been fixed in the new masked version of KlustaKwik. Download KlustaKwik3.0.2 in the maskedKlustaKwik folder.
Use the program SpiKeDeteKt to detect spikes from your raw data and to obtain the requisite .mask file.
good project klustakwik
Easy to use and works.