Yeah.
Um. So there is this , there is the um length of the filters. Um.   So the i this idea of trying to find filters with shorter delays. Um. We started to work with this.
Hmm - hmm.
Mmm. And the third point um   was the um , yeah ,  the on - line normalization where , well , the recursion f recursion for the mean estimation  is a filter with some kind of delay