and , detect detecting the first  group of four frames  that have a energy that 's above this threshold , and , uh , from this point , uh , tagging the frames there as speech. So it removes  the first silent portion  portion of each utterance. And it really removes it , um , still o on the noises where  our MLP VAD doesn't  work a lot.
Mmm.
Uh ,
Cuz I would have thought that having some kind of spectral  information ,