Facebook isn't merely content to make a virtual reality camera rig and call it a day. The company has revealed that it acquired Two Big Ears, the creator of the VR audio app Spatial Workstation, and has set the software loose. As of now, Spatial Workstation is free -- anyone with a Mac (Windows support is coming) can produce immersive sound for their 360-degree videos. Support for the company's existing Pro and gaming products will phase out over 12 months, but you'll eventually see the gaming tech merged into the Facebook-owned software.