Mm - hmm.
and  and getting a  very good handle on the features.
Mm - hmm.
And we did this complex feature selection thing where we looked at all the different possible features one could have for voicing and   and  and uh  and exhaustively searched  all size subsets and  and uh  for  for that particular speaker and you 'd find you know the five or six features which really did well on them.