the block echo cancellation particularly appealed to me , uh you know , trying and change it sample by sample , but you have some reasonable sized blocks.  And um , you know , th
W what is the um  the artifact you try to  you 're trying to get rid of when you do that ?
Ciao.
Uh so it 's  it  you have a  a direct uh  Uh , what 's the difference in  If you were trying to construct a linear filter , that would um