Asus P1801 - Manual (Page 25)

English
25 ASUS All-in-One PC
Setting up a secondary display via the HDMI-
output port
If you want to use a high-definition TV as an audio output device, connect it to the Home
Theater PC and follow the steps below to configure the audio settings.
To configure the audio output via an HDMI device:
1. From the Start screen, click
Desktop to launch the Desktop Mode.
NOTE: For more details, refer to the section Start screen under Using Windows® 8.
2. Right-click the Volume Mixer icon on the Windows® taskbar and
click Playback devices.
3. From the Playback screen, select Digital Audio
(HDMI).
4. Click Configure and the Speaker Setup window pops
up.