Mm - hmm.
um The other thing that I don't know the answer to , but when people are using Feacalc here , uh whether they 're using it with the high - pass filter option or not. And I don't know if anybody knows.
Um.  I could go check.
But. Yeah. So when we 're doing all these things using our software there is  um if it 's  if it 's based on the RASTA - PLP program ,  which does both PLP and RASTA - PLP  um then  uh there is an option there which then comes up through to Feacalc which  um allows you to do high - pass filtering and in general we like to do that , because of things like this and  it 's  it 's pretty  it 's not a very severe filter. Doesn't affect speech frequencies , even pretty low speech frequencies , at all , but it 's