I think one of the strings got fixed in 13.04. Please confirm/deny if this is still a problem, e g by taking a screenshot in 13.04 where you still can see "iec958" in the sound settings.
** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/978370 Title: [soundnua]: S/PDIF and IEC958 are used interchangeably To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/978370/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs