Well , you know , there is this. Wait a minute. It  it  i maybe  i If , um  Subtracting the  the mean log spectrum is  is  is like dividing by the spectrum. So , depending what you divide by , if your  if s your estimate is off and sometimes you 're  you 're  you 're getting a small number , you could make it bigger.
Mm - hmm.
Mm - hmm.
So , it 's  it 's just a  a question of  there 's  It  it could be that there 's some normalization that 's missing , or something to make it