LOUD stargate sound when mousing over main menu buttons

[Cyrex]

It's the sound that the stargate makes when it chooses a symbol, I wouldn't have minded it if it wasn't so fucking loud, any idea what addon is doing this, or the name of the .wav that regulates the menu button sound?

[Tin Can™]

It's probably from an addon or a new background you downloaded.
Look around in your garrysmod/sound/ui folder and find a buttonhover.wav or whatever it's name is.