MasterJedi7281

Ok I am on nar shadda I go into the cantina to overhear the thugs but no matter where I stand I can’t hear them. I have a stealth generator on but nothing happens I have no way of turning it on if I need to. So I am asking how am I able to hear them or even on the docks in the flophouse????? Does my stealth need at a certain level or not??????