It’s not hard to quiet down the propellers on the Tu-95—replace the two four-blade spinners with two six-blade spinners (so the propellers can turn slower, reducing a lot of noise) and curve the blades back slightly as an additional noise-reducing measure. If you look at the six-bladed propellers on the Lockheed C-130J, note the blades are curved slightly backward for the reasons I stated.
Maybe they could get it down to the third noisiest aircraft ever.