Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	17.731248	162.49999999999972	812.4999999999998	17.512498	17.949998	0.4375	20250209_220850UTC_V00OS11.WAV
E	14.856248	297.91677500000014	839.5832250000001	14.549998	15.162498	0.6125000000000007	20250209_220850UTC_V00OS11.WAV
U	37.85	649.9977249999996	798.9562749999997	36.9875	38.7125	1.7249999999999943	20250209_220850UTC_V00OS11.WAV