Ik heb het al opgelost gekregen met de volgende tut:
On the Dash, search for Multimedia Systems Selector.
Open it and in its Audio tab you can select the default audio Input and Output devices.
This application is installed by default in Ubuntu Installation. But if you haven`t this somehow can install by
sudo apt-get install gnome-media
If it is not shown in the Dash, run:
gksudo gedit /usr/share/applications/gstreamer-properties.desktop
In the resulting text file, go to the line starts with NoDisplay=. Change the NoDisplay=true to NoDisplay=false