Top quality work! Very interesting read.<p>The use of microcontrollers in the swift unit suggests that the sound localization is all post processing, is there any value or intentions for real time sound localization?<p>Clearly that would require much more battery power but I was wondering if it was consider added value to this particular research if that were possible.
I looked at the picture of the elephant and thought infrasound makes sense.<p>The size of elephant ears would probably work better with longer wavelengths.
i'm curious as to the transducers used for the playback experiments. also wondering if there aren't things like sibilance in human speech that make communication if perhaps not understood, at least audible to them. interesting!