This is a fast video on how I use to record my videos by plugging my Behringer mixing board straight into my Canon 60D.
I have since given up this method preferring to record the audio separately in Audacity and then after I have thoroughly edited the sound combine it back into the video using the Video Editing program Sony Vegas.
Since not everybody can afford $600 for a Video editing program and the time to learn how to use it. This is a nice work around.