Junger L_D*AP8_FO_UP - Automatic Upmix and Fail Over License for D*AP8When broadcasting a mix of stereo and 5. 1 content, it can be disturbing to viewers when the surround field collapses back to stereo and vice versa. Upmix can be set to detect stereo only content and automatically create 5. 1 in order to maintain a consistent surround experience. Existing 5. 1 content will pass untouched. Fail Over ensures that if the primary signal is lost, the unit can switch automatically to a secondary back up feed.