Let's make some NUIse!
So far, there has been little public work on developing drivers that work with the Kinect NUI Audio. For the unfamiliar, the Kinect has a four-microphone array that can be used to identify the direction from which a sound came. Further, the Xbox360 also sends it whatever it's playing out the speakers in real time, so the Kinect can cancel that out from the microphone data. It can hear you (just you!) over the explosions or whatever sound your stereo is playing. That's pretty cool.
However, none of this has been available outside of the Xbox360 SDK. I think that some people would find this useful, and that even after Microsoft releases their development kit for academia and hobbyists, some of these folks might want to use open-source software.
So: here's NUIse, a proof-of-concept driver for the NUI Audio device. I reverse-engineered the protocol and implemented my own software that streams the data from the four microphones to files. I'm in the process of documenting the entire protocol on the OpenKinect wiki.
Since it's hard to post a screenshot of an audio driver, you'll have to settle for this audio recording.
This was not accomplished in a vacuum. I owe thanks to a number of folks that made this work possible. To name a few: