It turns out that the problem is the fs_phones file -- there are more phones in the sample alphadigits tar ball (or zip ball in this case :-) -- format had nothing to do with it. fs_phones is derived from fs_models (and fs_ci_models) which is derived from fs_num_states. So, is there a way to derive the fs_num_states and fs_ci_models files from, say, the alphadigits trans files? --- robert b <http://dummy.us.eu.org/robert> wrote: > My main confusion is with my mlf files. I don't understand how to derive the .lab files in the > alpha_digits stuff. There are .txt files which seem to correspond with with .lab files, but > when > I try to create my own mlf file, hmm_train crashes. Here is what part of my mlf file looks > like: > > #!MLF!# > "*/AD-1.p19.txt" > b v y b oh b > . > "*/AD-1.p20.txt" > zero eight e u r b > . > "*/AD-1.p21.txt" > q m b p two j > . > > and continues. (The phones are the actual contents of the .txt file.) Is this correct? Or is > there a more strict format the mlf file?