Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	33.468752	866.6645	1029.1645	32.412504	34.525000000000006	2.1124960000000077	20250420_202235UTC_V00OS11.WAV
U	1.693752	880.206275	1015.622725	0.7750039999999999	2.6125	1.837496	20250420_202235UTC_V00OS11.WAV
D	54.225	121.87174999999996	961.45725	54.0125	54.4375	0.4249999999999971	20250420_202235UTC_V00OS11.WAV
D	20.875	0.0032499999999231	826.0427499999998	20.6625	21.0875	0.4249999999999971	20250420_202235UTC_V00OS11.WAV
D	10.175	121.87825000000038	866.6677500000003	10.025	10.325	0.3000000000000007	20250420_202235UTC_V00OS11.WAV
D	43.218752	189.5854999999998	920.8354999999998	42.987502	43.450002000000005	0.4625000000000057	20250420_202235UTC_V00OS11.WAV