Sound
Playback
Space plays/pauses. Playback covers the selected annotation, or the visible stretch when none is selected. Slow the speed to hear ultrasonic recordings.
Spectrogram
Contour
Both off/blank = Raven behaviour: every slice gets a point, quantised to bin centres.
Annotations
Drag a box on the spectrogram to add a selection, drag its edges or corners to adjust it. Loading a file starts with one box covering the whole file.
Tab-delimited tables from Raven Pro or Raven Lite, including sound selection tables (Begin File / File Offset (s)). Export writes the same format with the PFC columns filled in.
Display
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Measurements