Wondering if there's a more efficient way to do the bit in gray. It's an approximation of
InRange.ar(signal, low, high) from SuperCollider (except that InRange is 1 if low <= signal <= high, while this Pd patch produces 1 for low < signal < high, close enough).
(I never understood why signal-rate comparators aren't in vanilla...? I know they're in cyclone but that doesn't explain the reasoning why they didn't make the cut for vanilla.)