Editing Bat detector (section)

====How it is used====
In real time mode, with or without an associated heterodyne or FD detector, the slowed down calls can be heard as a drawn-out bat call at audible frequencies. Therefore, fast FM calls can be heard as a descending note instead of a click. Thus it is possible to hear the difference between FM calls which just sound like clicks on the other types of detector.

After downloading an audio recording to a computer, the original calls are analysed as if they were still at the original non-expanded rate.