Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	44.075	108.333225	297.91677500000003	43.9875	44.1625	0.1749999999999971	20250419_034035UTC_V00OS11.WAV
A	21.643752	40.62500000000014	284.3750000000001	21.300002	21.987502	0.6875	20250419_034035UTC_V00OS11.WAV
B	50.606248	27.08549999999991	189.5854999999999	50.474998	50.737498	0.2625000000000028	20250419_034035UTC_V00OS11.WAV