Question: would packing it in denser help, or is there a limit to this? I imagine at some point the insulation can't "friction absorb" and just starts to transmit through.
Sadly, I can't go to my neighbors house and set up a test. I would love to have a baseline 100 dB pink noise from his house before and after the insulation, extra drywall, and green glue all go up. Maybe he'll oblige by playing some death metal tonight and I can get an RTA reading
