Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
T	51.062496	392.7062749999998	568.7477249999998	50.012496000000006	52.112496	2.0999999999999943	20250304_035017UTC_V00OS11.WAV
U	54.056248	677.0855000000003	798.9605000000003	53.375	54.73749599999999	1.362495999999993	20250304_035017UTC_V00OS11.WAV
U	49.512504	677.081275	812.497725	48.875004	50.150004	1.2750000000000057	20250304_035017UTC_V00OS11.WAV
B	46.937504	0.0022750000003526	176.04372500000034	46.850004	47.025004	0.1749999999999971	20250304_035017UTC_V00OS11.WAV