It depends a lot on what kind of firearm and ammunition you are using. I have a silencerco sparrow, which is noted to be better on rifles than pistols. With regular bulk pack ammo, my sparrow is quiet enough on a pistol that it doesn't cause me any discomfort, and I have very sensitive ears.
On my 10/22, the sparrow is much quieter, and most of the noise I hear when firing is action noise. Even the action noise is subdued by a polymer bolt buffer. The sparrow on my bolt gun with regular subs is stupid quiet, probably about the same as my relatively quiet 22 cal air rifle.
When using cci quiet ammo, my pistols sound like my rifles with regular subs, and the rifles are a good bit quieter than my air rifle.
I think you'll be very pleased with your can after your wait is up.... If you're like me, you might start plotting your second form 4 right away.