Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	12.85	0.0	189.5812750000001	12.775	12.925	0.1499999999999985	20250419_124035UTC_V00OS11.WAV
V	21.35	4441.666775	4780.208225	21.0625	21.637500000000003	0.5750000000000028	20250419_124035UTC_V00OS11.WAV