Audio Aliasing Problem

[jamand]

I am hearing audio aliasing when I use OBS. I have narrowed it down to OBS and not the audio drivers, as audio captured with Nvidia Shadowplay does not have the aliasing. I need to use OBS however because I want to capture my mic and background audio in separate tracks. You can hear the aliasing most pronounced in the kick drum of the audio.

OBS (aliasing)
Nvidia Shadowplay (no aliasing)

Any help or insight would be much appreciated.