I like the idea of breaking things up by frequency! Luckily my application (radio transmissions) is quite amenable to this naive noise gate, but I can imagine f

I like the idea of breaking things up by frequency! Luckily my application (radio transmissions) is quite amenable to this naive noise gate, but I can imagine for more complex audio (e.g. if the radio doesn't have a built-in squelch) having tighter control over what triggers the gate would greatly improve quality.