Great. Great. Yeah actually um he should uh I wonder who else is I think maybe it 's Dan Ellis is going to be doing uh a different cancellation. Um.  One of the things that people working in the meeting task wanna get at is they would like to have cleaner  close - miked recordings. So uh this is especially true for the lapel but even for the close  close - miked uh cases um we 'd like to be able to have  um other sounds from other people and so forth removed from  So when someone isn't speaking you 'd like the part where they 're not speaking to actually be  So  what they 're talking about doing is using ec uh echo cancellation - like techniques. It 's not really echo but  uh just um uh taking the input from other mikes and using uh  uh a uh   an adaptive filtering approach to remove the effect of that uh other speech. So. Um what was it , there was  there was some  some  some point where  eh uh Eric or somebody was  was speaking and he had lots of  silence in his channel and I was saying something to somebody else uh  which was in the background and it was not  it was recognizing my words , which were the background speech  on the close   close mike.
Hmm.
Oh the  What we talked about yesterday ?
Yes.