Yeah. Yeah.
But as far as , I mean  Like I thought BBN did a thing with , uh , uh , vocal tract normalization a ways back. Maybe other people did too. With  with , uh , uh , l trying to identify third formant  average third formant   using that as an indicator of
I don't know.
So. You know , third formant  I if you imagine that to first order what happens with , uh , changing vocal tract is that , uh , the formants get moved out by some proportion