Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	20.95	541.6687249999998	771.8772749999998	20.3625	21.5375	1.1749999999999972	20250212_035050UTC_V00OS11.WAV
F	31.231248	2139.5822500000004	2843.74675	30.887498	31.574998	0.6875	20250212_035050UTC_V00OS11.WAV
U	24.875	609.3750000000001	731.2500000000001	24.25	25.5	1.25	20250212_035050UTC_V00OS11.WAV