I'm having the same issue as Franco. I updated Windows 8 Pro to 8.1 last night. A little about mysetup:
I also have the Soundblaster X-fi Pro usb sound card, it is plugged into a set of Logitech 5.1 speakers through the analog outputs, then I also use the optical output to connect to my Turtlebeach Earforce DSS (digital decoder), which is connected to my
Turtlebeach headset. So I can disable either one to use either the speakers or the headset, though I mainly use the headset. The sound card is set to output Dolby Digital Live through the optical cable, so I can get surround sound on my headset.
This setup worked with no issues on Vista, then with no issues on Windows 8 Pro when I built a new PC.
After the update, I had no sound at all in the headset, but I found that the update had apparently reset some settings. So I tried setting the Dolby Digital Live up again, but I am having all kinds of audio issues. When I go to "playback devices" and
try to play test sounds, the sounds play but they cut out and distort, sometimes they sound like they have some static (crackle and pops). Normally the lights on the DSS change to "DD" when Dolby Digital is playing, but now the lights flicker back and forth
between digital and analog rapidly while trying to play the test sounds. When I try playing a youtube video or a game, the same thing happens, the lights on the DDS flicker and the sound cuts in and out.
I tried updating to the
Creative
Sound Blaster X-Fi Surround 5.1 Pro Driver 1.02.0061 drivers several times, also tried running the driver installer in compatibility mode for windows 8. I also have the original CD for the hardware too, so I tried uninstalling everything related
to the sound card and re-installing all the original software. I also tried running the installer on the CD in compatibility mode.
Any other ideas? It is kind a pain to wipe everything and go back to Windows 8. I wish I read about this before I installed 8.1. I'm not sure what they changed from 8 to 8.1 that is causing Dolby Digital Live so much hassle. I thought it was a pretty
minor upgrade.