Disable KDE sounds in GNOME Ubuntu

Install KDE settings package sudo apt-get install systemsettings. Then open it up and go to Application and System Notifications, Player Settings tab, set No audio output.

I do not see a reason for these bloody noises anyway. My solution that requires no installation of any more applications to take up space is to just delete the bloody noises: sudo rm -fv `sudo find /usr/share -iname *.ogg`