Sorry about that, I'm really trying not to waste your time more than need be. Anyway, here is that output:
audioctl -f /dev/audio returns
Code:
audioctl: /dev/audio: Device busy
mixerctl -f /dev/audio returns
Code:
mixerctl: /dev/audio: Device busy
Also, I don't know if this helps, but I installed Dragonfly BSD on another hard drive just to see if it was common to non-FreeBSD BSD's (given that they make use of linux drivers), and Dragonfly BSD has the same problem with my hardware. I can get a complete XFCE4 desktop, but I get the exact same gstreamer error message.