The combination of the two cases is relatively small, but can still be done with the intermediate plug-in. Search for Kinect in the Unity's resource store, then the results of the search will have a free gesture package, download it, there will be a detailed documentation, there are several cases, bone tracking, gesture recognition. Take a look at the example. If you want to do speech recognition, you also have to pay to download the extra with MS-SDK, but in the game bull such a forum very easy to find someone else to download, or in my Baidu network disk download also line. URL: Http://pan.baidu.com/s/1gdriUhP There are also several cases, which are defined to identify the content into the XML file, and then easily be able to control the speech recognition. Thanks to that foreign developer.
About the Kinect and Unity3d joint development application