This P1S automotive sound mat mod does WONDERS
As someone who prints in their room, and works from home, any P1S owner should know this is a deadly combo. I need to actively pause prints from my P1S whenever I have an incoming call.
So when I bumped into this post, I just had to try it.
I did not do enough tests before this mod so this is coming from a trust-me-bro opinion, do what you will with that information but: this shit works.
The second image is a sound recording from 60 inches/ 5 feet away, but it's CLEARLY quieter from before the mod.
In audiophile terms, it really muffles the midrange whine that you normally get when the Hotend is moving quickly over large passes, while the low-end is completely dead. The main sound range I hear over anything now is the chamber fan, which is far more bearable than the motor whine that used to roar in my room.
If you're a P1S owner who has their printer nearby, I can't recommend this mod enough!