OK.
So what I was working on is um just going through and checking the headers of the wavefiles , to see if maybe there was a um  a certain type of compression or something that was done that my script wasn't catching. So that for some subset of the training data , uh the  the  the features I was computing were junk.
OK.
Which would you know cause it to perform OK , but uh , you know , the  the models would be all messed up. So I was going through and just double - checking that kind of think first , to see if there was just some kind of obvious bug in the way that I was computing the features.