How do I simultaneously record audio from every mic on a microphone array into a separate buffer in Android?

Many tablets and some smart phones use an array of microphone for things like noise cancellation. For example Motorola Droid X uses three microphone arrays and even allows you to set "audio scenes". An example is discussed here.

I want to be able to record from all the microphones that are available on the tablet/phone at the same time. I found that using AudioSource we can choose the mic (I do not know which mic this is specifically but it might be the one facing the user) or the mic that is in same orientation as the video camera, but could not find anyway of accessing all the other mic in the mic array. Any help that points me in the right direction to investigate this will be great. Thanks in advance for your time.