What Is Realtek Digital Output -

You should only select Realtek Digital Output as your "Default Device" if you have a physical digital cable connecting your PC to a secondary audio device.

| Problem | Likely Fix | |---------|-------------| | No sound from Realtek Digital Output | Check optical cable, receiver input setting, and set as default device in Windows. | | Static or choppy audio | Disable “Allow applications to take exclusive control” in sound settings. | | Surround not working in movies | In player (e.g., VLC), enable S/PDIF or “bitstream” pass-through. | | Device missing from sound list | Reinstall Realtek drivers from motherboard vendor; enable onboard audio in BIOS. | | Volume control doesn’t work | Normal — digital output bypasses PC volume; control volume on receiver/DAC. | what is realtek digital output

In short:

Without bitstreaming, Realtek Digital Output will , which is a key limitation. You should only select Realtek Digital Output as