Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	54.912496	704.1667750000001	839.5832250000001	53.824996	55.999996	2.174999999999997	20250220_175650UTC_V00OS11.WAV
O	53.606248	108.33322499999971	257.2917749999997	53.262498	53.949998	0.6875	20250220_175650UTC_V00OS11.WAV
U	39.137496	677.0855000000003	798.9605000000003	38.374996	39.899996	1.5250000000000057	20250220_175650UTC_V00OS11.WAV
U	38.625	677.0854999999998	839.5854999999998	37.3625	39.8875	2.5250000000000057	20250220_175650UTC_V00OS11.WAV
A	5.043752	54.16677499999986	230.20822499999983	4.700002	5.387502	0.6875	20250220_175650UTC_V00OS11.WAV
U	31.493752	649.9977249999996	798.9562749999997	30.9875	32.000004000000004	1.0125040000000034	20250220_175650UTC_V00OS11.WAV