Others may have made it work but I've never persuaded Audition to record a mic in one channel and line out (Skype) in the other. Since Audition it designed to work with a single ASIO audio interface, this makes sense.
My solution is to use a little utility called the iFree Skype recorder: Record Skype Calls with iFree Skype Recorder - Your FREE Skype call recorder software
It works well for me, keeping the outgoing part of the call and the incoming separate for easy editing later. It works fine with an external audio interface and good mic as long as Skype is set up to work that way.
The only drawback is that it records in MP3 not wave but, given the quality of most Skype calls, this isn't really a deal breaker.
Will Audition see IFree in real time for recording? Will I be able to set Audition for this purpose? I only ask because I'm doing interviews for a podcast and that's the reason for the two track recording requirement?
Sorry if my questions seems dumb but I've been trying overcome this challenge for a few days.
Thanks for your help.