I recently noticed that there is a constant background static coming from my speakers when the game is running, and i don't know whats causing it. As far as iv'e tested its definitely coming from the game specifically as it disappears the minute the game is off or minimized. Anyone got a fix or knows what's going on?

This isn't necessarily related to PSO2. I had robotic super static sounds in other games at one point in the past. What happened was my Audio Driver was all messed up because Windows Update installed one version on top of the previous one I manually installed. It was causing weird driver selection issues.

Try downloading your audio drivers, nuking all audio drivers on your PC, setting windows update to NOT install drivers, reboot, reinstall drivers from the download you just got.

This fixed static issues I had in other games.