to try to get rid of some of the effects of the  the  the far - field effects. Um , I mean we have  the party line has been that echo cancellation is not the right way to handle the situation
Mm - hmm.
because people move around , and uh , if  if it 's  if it 's uh not a simple echo , like a cross - talk kind of echo , but it 's actually room acoustics , it 's  it 's  it 's  you can't really do inversion ,
Mm - hmm.