I guess there 's another aspect which is that as we 've improved our microphone technique , we have a lot less breath in the  in the more recent , uh , recordings , so it 's  in a way it 's an artifact that there 's so much on the  on the earlier ones.
Uh - huh. I see.
One of the  um , just to add to this  one of the ways that we will be able to get rid of breath is by having models for them. I mean , that 's what a lot of people do nowadays.
Right.