And so are each of these , low level detectors   are they , uh  are these something that you decide ahead of time , like " I 'm going to look for this particular feature or I 'm going to look at this frequency , " or  What  what  what are they looking at ?
Um
What are their inputs ?
Uh Right , so the  OK , so at each for each sub - band  there are basically , uh , several measures of SNR and  and correlation.