With upgrade to Quantal, Nautilus makes some sounds when moving between folders and when closing folder properties window. I have all sounds disabled from System Settings (muted) and didn't find any relevant options from Nautilus preferences. How to remove them?
I will also consider hacks (eg. replacing sound files with silent ones).
http://askubuntu.com/questions/25531/how-to-disable-alert-volume-from-the-command-line
– kumarharsh Feb 24 '13 at 11:07