Ironically, this thing can't record sound as we know it - it only have enough buffer space for a few hundreds of samples per mic, 30 times per second. They are

Ironically, this thing can't record sound as we know it - it only have enough buffer space for a few hundreds of samples per mic, 30 times per second. They are to be FFT-ed rather than continuously recorded. While such a contraption should, in theory, be able to distinguish between dozens of voices in a room, it would take much, much heavier signal processing to achieve.