Mm - hmm.
It 's always good to have references , especially when reviewers read it or  or one of the authors and ,  feel they 'll " You 're OK , you 've r You cited me. "
So , yeah. Well , he did echo cancellation and he did some fancier things like , uh ,   uh , training different network on different reverberation conditions and then trying to find the best one , but. Well.
Yeah.