But it 's very close to  to cepstral mean subtraction.
But some people have done   exactly that sort of thing , of  of  and the  I mean it 's not  To  to look in  speech only , to try to m to measure these things during speech ,
Yeah , yeah.
that 's p that 's not that uncommon. But i it it  so it looks like they did some  some , uh , reasonable things , uh , and they 're not things that we did , precisely. We did unreasonable things ,  which  because we like to try strange things , and  and , uh , and our things worked too.