When we upgraded our podcast recordings by using a mixer, it required setting up a mix-minus to record Skype calls (and other VOIP programs). A mix-minus allows multiple audio sources to enter into an audio mixer, and then that output returns to Skype minus the Skype caller’s voice, which is nice. We used Ray Ortega’s video for guidance on how to set it up, and even learned of some items we needed to purchase to make it all work.
Watch the video above, and please visit his site, The Podcaster’s Studio for more information on that and other podcasting questions. He has many valuable tips for old and new podcasters.