Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	39.312496	866.6687250000002	1015.6272750000004	38.649996	39.974996	1.3250000000000028	20250212_061450UTC_V00OS11.WAV
O	18.962504	501.0395000000001	704.1645000000001	18.362504	19.562504	1.2000000000000028	20250212_061450UTC_V00OS11.WAV
T	18.981248	501.041775	717.708225	18.349996	19.6125	1.2625039999999998	20250212_061450UTC_V00OS11.WAV
E	18.968752	501.0395000000001	704.1645000000001	18.362504	19.575	1.2124960000000016	20250212_061450UTC_V00OS11.WAV