User blog comment:Ultraprime2/Fairy Tail Wikia Podcast 8/6/2014/@comment-4449950-20140610080243/@comment-4800978-20140610133046

It looks like the current recording settings has it so the Skype call is recorded as two audio channels for stereo use. Outgoing audio (you) is record as one channel, and incoming audio (everyone else) is a second. ( ._.)/

It might just be an option of 'record in stereo' and 'record in mono'.