Realtek Digital Output | Better

: It is the standard for connecting to 5.1 or 7.1 home theatre systems via an optical TOSLINK cable.

Computers store audio as binary code (0s and 1s). However, humans cannot hear binary; we hear sound waves, which are analog signals. Therefore, digital data must be converted into an analog electrical signal before it can be played through speakers or headphones. realtek digital output better