Filtering value ranges

hi all,

i am trying to filter values coming in from an FFT node. for example i wish to make a spread react when values range between say 0.5 and 0.75, but do nothing when it is less than 0.5 or greater than 0.75. how would this be accomplished?

thanks

try Hysteresis (Animation)

or try

0.5, < 0.75

AND

S+H