[amsat-bb] ARISSat TLM soundcard selection ?

[PA3GUO]

Case: Using ARISSatTLM with the output of HDSDR (connected to FCD SDR).

- using Win XP (by luck ?) ARISSatTLM selects the decoded output of HDSDR 
(volume of HDSDR varies the input level of the ARISSTLM window)

- using Win7 64bit ARISSatTLM seems to select another input (unclear which)

How can I select which sound card ARISSatTLM should use ?

Henk, PA3GUO