OK.
Yeah. Or subtract nothing. I mean , it 's
Or subtract nothing. And  and that 's  that 's  I guess that 's something that 's p people have figured out how to deal with in cepstral mean subtraction as well ?
Yeah , yeah. Yeah , people do something. They  they , uh , they have some , um , uh , in  in cepstral mean subtraction , for short - term window  analysis windows , as is usually done , you 're trying to get rid of some very general characteristic. And so , uh , if you have any other information about what a general kind of characteristic would be , then you  you can do it there.