Random keyboard noises in maps?

[Encryptions]

When a mage attacks in a map it would make some keyboard sound like if some one was to be typing very fast on an old dell desktop keyboard where the keys are raised up.
Noticed it after the last patch update, I was helping a lv 50 mage in garetta, he would attack and that noise would appear.

[Futumsh]

They're actually firecrackers, but will be hotfixed shortly.

[Irg]

I thought someone threw a nuke and those are the static lol