Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
B	27.975	325.00227499999994	501.0437249999999	27.887500000000003	28.0625	0.1749999999999971	20250414_022835UTC_V00OS11.WAV
C	36.456248	176.04177499999977	798.9582249999996	36.349998	36.562498000000005	0.2125000000000056	20250414_022835UTC_V00OS11.WAV