This is a quick overview on how to record the audio coming from your computer directly into your DSLR without a proper audio interface. This video was not edited in any way. Direct from DSLR to youtube.
The male to male aux cable can be found for less than $6 at:
https://geni.us/UJyCo9Q [Amazon]
Audacity (Free):
http://www.audacityteam.org/
The equipment used to record:
Blue Spark (great mic)
Blue Icicle (cheapo-XLR to USB converter - do not recommend)
Canon 6d (DSLR)
Canon 17-40mm f/4 L (lens)