Hi,
I have just finished two open source Kinect motion capture tool, and I have put them on Github.
This is macOS Edition:
https://github.com/meshonline/kinect-openni-bvh-saver
This is Windows Edition:
https://github.com/meshonline/kinect-sdk-bvh-saver
I’m using macOS edition in my education project, and I’m satisfied with the result.
Enjoy them!