Microsoft is showing no sign of quitting its Surface Andromeda patent-a-thon, from big technological solutions to pouring over all sorts of finer details. The very idea of a dual-screen computer creates a range of usability issues that we take for granted with today's single-slate tablets and phones, and clearly Microsoft is ensuring that it is really thinking through all the finer points of how a dual-screen tablet could work. This latest patent describes issues that come with dual-purpose volume mixing, where you can have separate apps and features present across two displays.

When viewing content on the screens in these varying positions, users may encounter challenges adjusting the audio volumes of different applications executed on each of the screens, or different audio-enabled graphical user elements displayed on each of the screens.