Terribly annoying sound bug ingame

[Breezeeh]

Okay, so me and a few others have been having this terrible issue where it sounds like someone is spamming the keyboard whilst playing. We have all tried so many things to resolve this issue but to no avail. I hope you can help fix our problem. Thanks.

:- Here is a video of the horrible sounds in action http://www.youtube.com/watch?v=r15gnVTqEE4 -:

[TMarc]

someone forgot to shut off the microphone?
it sounds really strange.
Is it always like this or can you hear the correct sounds most of the time?

[GabrielM]

Hello Breezeeh, Are you using custom engine sounds in this recording ?