I'm trying to change the Normal detection sound level for arrows. I made an .esp with all arrow's detection sound levels changed to Loud, another one Very Loud, and another one with all arrow's in Silent level.

However, I'm testing it in-game and all arrows seem to behave exactly the same (even if I shoot arrows closer or further away from an enemy, always hitting a wall in the same spot, the reaction seems to occur at the same distance).

Do the "Detection Sound Level" options under the Projectile tab work?