Hello. Here are the specs of the PC:
OS: Windows 7 Pro 64 bit
Sound Card: Sound Blaster Zx - PCI x4 slot
Speaker System: 2 Logitech Z-5500 surround sound systems hooked to an optical splitter
Cabling: THX Certified Fiber Optic Cables going out of the Z5500 Control pods into an optical splitter...
I have a optical audio out running from my xbox one to my Yamaha HTR-5930 Receiver (https://www.manualslib.com/manual/197345/Yamaha-Htr-5930.html). I have fr, fl, center, sw, rr, and rl speakers connected. I have tried both dolby digital and dts bitstream audio setting on xbox one.