I want to disable the audible terminal bell, and enable the visual terminal bell. I followed the instructions from this answer
$ gsettings get org.gnome.desktop.wm.preferences audible-bell
false
$ gsettings get org.gnome.desktop.wm.preferences visual-bell
true
$ gsettings get org.gnome.desktop.wm.preferences visual-bell-type
'frame-flash'
but I am getting both the audible and visual bells. Likewise, disabling the terminal bell under "Sound" in preferences disables both types.
Ideas?