And so the filter bank is chosen in fact to sort of integrate out the effects of pitch and she 's saying you know trying  So the particular measure that she chose was the variance of this m of this difference , but that might not be the right number.
Mm - hmm. Maybe.
Right ? I mean maybe there 's something about the variance that 's  that 's not enough or maybe there 's something else that  that one could use , but I think that , for me , the thing that  that struck me was that uh you wanna get something back here , so here 's  here 's an idea. uh What about it you skip all the  all the really clever things , and just fed the log magnitude spectrum into this ?
Ah  I 'm sorry.