[PD] Random Slicer patch

[Matt Alford]

I'm not quite sure who made this patch but its a port from some Max patch.
I am trying to figure how to put my own sample into it.  Right now it is
configured for the demo sample 75789 sample length and 16 slices.  How could
I figure out the number of samples in my particular sample?  In the notes is
says the "magical" numbers are 75789 107.41 and 1218.57.  How could I come
up with these?  Any help is appreciated.
Thanks
Matt