OK. So the other thing is the  I 'm just looking at a little bit on the delay issue where the delay of the system is like a hundred and eighty millisecond. So  I just  just tried another sk system  I mean , another filter which I 've like shown at the end. Which is very similar to the existing uh , filter. Only  Uh , only thing is that the phase is  is like a totally nonlinear phase because it 's a  it 's not a symmetric filter anymore.
This is for the LDA ?
Yeah  so  so this  this is like  So this makes the delay like zero for LDA because it 's completely causal.
Oh.