Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	41.143752	243.75000000000017	487.50000000000017	40.475004	41.8125	1.3374960000000016	20250217_033250UTC_V00OS11.WAV
U	50.006248	893.7499999999997	1096.8749999999995	48.85	51.162496	2.312495999999996	20250217_033250UTC_V00OS11.WAV