Mm - hmm.
Uh , that 's the party line. But it occurred to me a few months ago that uh party lines are always , you know , sort of dangerous. It 's good   good to sort of test them , actually. And so we haven't had anybody try to do a good serious job on echo cancellation and we should know how well that can do. So that 's something I 'd like somebody to do at some point , just take these digits , take the far - field mike signal , and the close uh mike signal , and apply really good echo cancellation. Um , there was a  have been some nice talks recently by  by Lucent on  on their b
Hmm.
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