Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	21.168752	121.87272500000007	270.8312750000001	20.425004	21.9125	1.4874960000000002	20250131_130850UTC_V00OS11.WAV
U	46.487504	649.9977249999996	798.9562749999997	45.500004	47.475004	1.9749999999999943	20250131_130850UTC_V00OS11.WAV
M	11.75	67.7105000000002	189.5855000000002	11.3625	12.1375	0.7749999999999986	20250131_130850UTC_V00OS11.WAV
O	35.468752	108.33322499999971	257.2917749999997	34.8375	36.100004000000006	1.262504000000007	20250131_130850UTC_V00OS11.WAV
T	49.5	379.1645000000002	541.6645000000002	48.7375	50.2625	1.5250000000000057	20250131_130850UTC_V00OS11.WAV