Yeah , but , you know , as opposed to the log in the other case. I mean  the fundamental d d difference that we 've seen any kind of difference from before , which is actually an advantage for the P L P i uh , I think , is that the  the smoothing at the end is auto - regressive instead of being cepstral  uh ,  from cepstral truncation. So um it 's a little more noise robust.
Hmm.
Um , and that 's  that 's why when people started getting databases that had a little more noise in it , like  like uh um Broadcast News and so on , that 's why c Cambridge switched to PLP I think.
Mm - hmm.