- You want to record a Skype call with separate tracks for you and your guest in Logic Pro X (or another DAW) on a Mac without any additional hardware
- You are willing to use and modify open source software to do it free (there are payed alternatives like https://www.rogueamoeba.com/loopback/)
- You will end up having a virtual aggregated sound device, that contains the original soundcard you are using plus 2 virtual channels to send and receive Skype audio
- This tutorial will help you to perform the setup for recording a 1:1 dialogue in Skype on separate tracks. If you want to record several participants you will need to adjust the setup
Soundflower is no software from an Apple authorized vendor, so you might need to adjust your system preferences, to be able to install software from third party vendors. Here's how to do that: https://www.tekrevue.com/tip/gatekeeper-macos-sierra/