Gnome Volume Control: Disabled Sound Themes

Problem is that every time I click something I get annoying sound from computer speaker. So I tried to disable or set new sound theme by visiting System > Preferences > Sound. The Sound Theme tab is greyed out. Sound itself is not working and I can only get annoying sound. How do I fix this problem under Debian or Ubuntu Linux gnome desktop system?

The GNOME Volume Control application is an audio mixer that enables you to mix audio for two-channel sound cards. It may be disabled if you removed or did not installed freedesktop-sound-theme package:

Gnome Volume Control: HDA Intel (Alsa mixer) Tab Is Greyed Out

To fix this problem open a terminal and type the following command:
$ sudo apt-get install freedesktop-sound-theme
Sample outputs:

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  gnome-session-canberra
The following NEW packages will be installed:
  freedesktop-sound-theme gnome-session-canberra
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/307 kB of archives.
After this operation, 516 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Selecting previously deselected package freedesktop-sound-theme.
(Reading database ... 110172 files and directories currently installed.)
Unpacking freedesktop-sound-theme (from .../freedesktop-sound-theme_0.7.dfsg-1_amd64.deb) ...
Selecting previously deselected package gnome-session-canberra.
Unpacking gnome-session-canberra (from .../gnome-session-canberra_0.24-1_all.deb) ...
Setting up freedesktop-sound-theme (0.7.dfsg-1) ...
Setting up gnome-session-canberra (0.24-1) ...

Now you can disable or set themes as per your requirements.