Acer ADK930 User Manual page 9

Audio Configuration - 9
A C
U D I O O N F I G U R A T I O N
By default, when the docking station is connected to a computer, the
audio configuration will attempt to change to USB (Multimedia)
Audio Device automatically (this setting depends on the model). If
this does not work, follow the steps below to set it up.
1. Open Control Panel and then select the Hardware and Sound.
2. Click Sound > Manage audio devices and then select USB Audio
Device.