um , do the best you can , and come up with some al possible alternates of what might have been said. And , uh , either in the form of an N - best list or in the form of a lattice , or  or confusion network , or whatever.
Mm - hmm.
And then the decoding of that is much , much faster or can be much , much faster if it isn't a big bushy network. And you can decode that now with speech that you 've actually processed using this longer time , uh , subtraction.
Mmm.