I mean the  so the minimum is one.
Mm - hmm.
But I mean is the  is the critical band the right uh uh dimension ? So we somehow made arbitrary decision , " yes ". Then  but then now we are thinking a lot how to  uh how to use at least the neighboring band because that seems to be happening  This I somehow start to believe that 's what 's happening in recognition. Cuz a lot of experiments point to the fact that people can split the signal into critical bands , but then oh uh uh so you can  you are quite capable of processing a signal in uh uh independently in individual critical bands. That 's what masking experiments tell you. But at the same time you most likely pay attention to at least neighboring bands when you are making any decisions , you compare what 's happening in  in this band to what 's happening to the band  to  to  to the  to the neighboring bands. And that 's how you make uh decisions. That 's why the articulatory events , which uh F F Fletcher talks about , they are about two critical bands. You need at least two , basically. You need some relative , relative relation.
Hmm.