How to determine Citrix settings programmatically?

Hi there,
some of our customers use our applications in a Citrix environment. With digital dictation and speech recognition, we want them to use the "high audio quality" settings.
Is there a way our program (C#, .NET 2.0) can find out the audio settings applied for the present session, thus enabling us to display a warning if quality is too low?
Furthermore, if the settings of the server and the client are different, the lower quality is applied - can a program find out the settings of server and client separately?
By the way, I've posted this question on a Citrix forum also, no reply yet as that's more an admin/user forum than a programmer's forum there.
Thanks a lot for your helpful suggestions!
Bernhard