Excuse me for my English and my repeats in advance.
So i need to do the exact opposite of what normalizers do. My mic has extreme spatial sensitivity(condenser mic without 48v) and it catches even a dude coughing outside. I need to get rid of that but not in the simple way(noise gate is disturbing, I do not want noise to kick up every time i click a mouse). I want something like a Contrast in imagery so i can catch both rabbits-getting rid of the noise and getting rid of the background sounds like someone talking in a background or someone cough outside of my house.
I imagine it like db to db spline curve where i can delete quiet sounds from my stream and only my voice without this quiet sounds comes trough. So this is how it is different from noise gate or expander.
Or as i described, like brightness\contrast sliders in imagery to set my voice loudness(-30db for example) and stretch other volumes in both ways from there.
All of this I can maybe describe like "per-frequency" expander, not the whole spectrum at once