a300:
Ten seconds from the thick of the "storm".

a300 sound (mp3)

a300b:
One second [5-6] excerpted from the previous segment.

a300b sound (mp3)

a300c:
One tenth of a second [.4-.5] excerpted from the previous segment.

no sound... cannot encode such short segments into mp3.

a300d:
A single pulse lasting less than one hundredth of a second, [.05-.06] excerpted from the previous segment.

It is clear that even within the bat storm, individual pulses remain for the most part intact. Pulse collisions do occur, but the majority remain separate.