Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
V	20.912496	1191.6645	1516.6645	20.774996	21.049996	0.2749999999999986	20250211_012050UTC_V00OS11.WAV
U	40.843752	663.5394999999996	785.4144999999996	40.075	41.612504	1.5375039999999984	20250211_012050UTC_V00OS11.WAV
O	9.506248	27.08127499999993	243.74772499999995	9.249998	9.762498	0.5124999999999993	20250211_012050UTC_V00OS11.WAV