skype not working properly

[user1]

> Try this.
> Right-click on the Sound icon at the top of the window, choose Sound
> Preferences and on the Input tab make sure the microphone is turned
> right up...

Strange, the windows man also told me about the sound icon on top of the 
window, but I do not see any sound icon?

I can go to skype - options - sound devices, but there is no input tab - 
please note that I am not using windows but ubuntu skype and pulseaudio?