Full modulation of the atmosphere (plus and minus 1 atmosphere about a 1 atmosphere mean) is 194 dB. Just as a point of reference 50 pounds of TNT detonated 10 feet away will generate 200 dB (and kill you). Eardrums pop instantly at 190 dB. Your body will be physically damaged beginning at 150 dB.

As I indicated before, I dont think any of this is close to happening in the LAB12 vent.