I did the world PvP quest in Azj-Kahet, the one in the goblin city with the big tesla coils. They have a sound effect and your character spreads sparks if you come near them.
I completed the quest, i am in another continent, with warmode off and i still have the sound effect in an endless loop even after /reload, relog, retarting the game.
Please help anybody. After the yawning dwarfs and the yak NPCs this is a whole new level of unbearable sound.
Deactivating the sound effects is not a solution. Even /rl does nothing.
Edit: if another poor soul encounters this, killing your character will fix it.