Dell ThinOS 9.x 2502, 2505, and 2508 Administrator’s Guide

Enable UDP audio in a Citrix session

Citrix recommends that you use audio over User Datagram Protocol (UDP) in low-bandwidth network connections for better audio quality. ThinOS does not support UDP audio over Citrix ADC (formerly NetScaler) due to Linux Citrix Workspace app limitation.

1. Start the Admin Policy Tool on your ThinOS 9.0-based device or open the ThinOS 9.x Policy settings in Wyse Management Suite.
   If you are using the Admin Policy Tool on ThinOS, you must first select the audio quality as Medium and then enable UPD audio. UPD audio is automatically disabled when you select the audio quality as High in Admin Policy Tool. However, the UPD audio is not automatically disabled when you are configuring the setting using Wyse Management Suite. UPD audio may not work if you set the audio quality as High using Wyse Management Suite.
2. On the Advanced tab, expand Session Settings, and click Citrix Session Settings.
3. In the Basic Settings section, click the Enable UPD Audio toggle key to the ON state.
   NOTE:From Citrix Workspace app 2112 and ThinOS 9.1.5067, Adaptive audio works while using User Datagram Protocol (UDP) audio delivery. Adaptive audio is enabled by default. This feature requires VDA version 2112 or later versions. For more information, see the Citrix Virtual Apps and Desktops Citrix documentation website.
4. From the Audio Quality drop-down list, select Medium.

   If you are using the Admin Policy Tool on ThinOS, you must first select the audio quality as Medium and then enable UPD audio. UPD audio is automatically disabled when you select the audio quality as High on Admin Policy Tool. However, the UPD audio is not automatically disabled when you are configuring the setting using Wyse Management Suite. UPD audio may not work if you set the audio quality as High using Wyse Management Suite.