I recently updated my Linux Mint Debian Edition to update pack 7. Since then, every time I change the volume by scrolling on the volume applet that is on my panel, an annoying beep is played. Similar to the behavior of OSX when changing volume.
I have never understood the point of this, it means I cannot change volume silently and it is extremely annoying. I have checked Cinnamon's sound preferences (and Gnome's, just in case since there is some overlap) and also the pulse audio settings. I have notifications set to off in Cinnamon's sound preferences. I also checked volume applets tab in Cinnamon's settings but the volume applet has no options.
So, how can I remove this annoying beep and get my silent system back?