Do the recorders have overlapping detections?

If you’re asking whether multiple recorders were active at the same time, then yes, we had recorders at 98 different locations over four years, primarily during the summer months. However, these locations were far apart, so no two recorders captured the same exact area.

Oh the reason I ask is that multiple recorders that hear the same ambient noise can be stacked to produce signals that are otherwise unobservable in a single signal.