Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	50.706248	379.1687250000001	568.752275	49.8	51.612496	1.812495999999996	20250311_170217UTC_V00OS11.WAV
O	25.475	365.622725	514.5812749999999	24.6875	26.262500000000003	1.5750000000000028	20250311_170217UTC_V00OS11.WAV
T	43.725	379.16677500000014	555.2082250000002	42.8375	44.6125	1.7750000000000057	20250311_170217UTC_V00OS11.WAV