I suggest Soundflower as a free alternative to Wiretap, it is a free audio routing device that can be used to route audio input and audio output into a recording device such as Audacity (the one that I am personally most familiar with). I tested this theory by recording a Skype conversation between myself and a friend on Audacity and it appears to work. Aniuś Taluwīs (talk) 01:00, 25 August 2014 (EDT)