Right. Yeah , it 's bark scale , and it 's  it  it um  it actually copies the uh um  the second filters over to the first. So the first filters are always  and you can s you can specify a different number of  uh features  different number of filters , I think , as I recall. So you can specify a different number of filters , and whatever  um uh you specify , the last ones are gonna be ignored. So that  that 's a way that you sort of change what the  what the bandwidth is. Y you can't do it without I think changing the number of filters , but
I saw something about uh  that looked like it was doing something like that , but I didn't quite understand it. So maybe
Yeah , so the idea is that the very lowest frequencies and  and typically the veriest  highest frequencies are kind of junk.
Uh - huh.