38English Windows system. If the icon is not visible, access the Sound Manager throughControl Panel > Realtek HD Sound Effect Manager.Dolby Digital LiveDolby Digital Live encodes audio signals into a Dolby Digital 5.1 bitstream formulti-channel playback through a surround sound system.To take advantage of Dolby Digital Live, you need a Dolby Digital-equippedaudio/video receiver or digital speaker system.1 Connect your computer to your audio system using a S/PDIF cable via the S/PDIF-out port2 Open the Realtek HD Sound Effect Manager3 Click the Dolby Digital Live icon to convert audio signals into DolbyDigital bitstream and begin Dolby Digital outputNote: When Dolby Digital Live icon is enabled, only the digitalaudio (S/PDIF) port of your computer will be active. You will nothear any sound from the computer's built-in speakers. To use yourcomputer's built-in speakers, disable Dolby Digital Live by clickingthe Dolby Digital Live icon.