Note: You may need to open the to finalize output settings. Conclusion
: It is often required for transmitting compressed 5.1 or 7.1 surround sound to an external A/V receiver using a single S/PDIF (optical or RCA) cable. External DAC Usage realtek digital output better
Digital output can introduce tiny amounts of latency (lag) as the audio signal is encoded and decoded. While rarely noticeable, competitive gamers sometimes prefer direct analog connections. How to Set Up and Use Realtek Digital Output Note: You may need to open the to finalize output settings