Hello Linux Geeksters. As you may know, Sound Switcher Indicator is an applet that enables the users to easily change the audio input and output, via the Ubuntu panel. Without needing to access the system settings, the users can switch from the HDMI audio speakers, for example, to the headphones.

The latest version available is Sound Switcher Indicator 1.2.1, which is compatible with the following desktop environments: KDE, XFCE, LXDE, Gnome, Unity.
In this article I will show you how to install Sound Switcher Indicator on Ubuntu 14.04 Trusty Tahr, Ubuntu 13.10 Saucy Salamander, Ubuntu 12.10 Quantal Quetzal and Ubuntu 12.04 Precise Pangolin.
Because it is available via PPA, installing Sound Switcher Indicator 1.2.1 on the listed Ubuntu systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the Sound Switcher Indicator package. Like this:
$ sudo add-apt-repository ppa:yktooo/ppa
$ sudo apt-get update
$ sudo apt-get install indicator-sound-switcher