I saw something about uh  that looked like it was doing something like that , but I didn't quite understand it. So maybe
Yeah , so the idea is that the very lowest frequencies and  and typically the veriest  highest frequencies are kind of junk.
Uh - huh.
And so um you just  for continuity you just approximate them by   by the second to highest and second to lowest. It 's just a simple thing we put in.