Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	53.7	2843.747725	3033.331275	52.4375	54.962500000000006	2.5250000000000057	20250214_170850UTC_V00OS11.WAV
D	33.568752	3019.79275	3764.58225	33.362502000000006	33.775002	0.4124999999999943	20250214_170850UTC_V00OS11.WAV
A	38.218752	40.62272500000023	270.83127500000023	37.850002	38.587502	0.7374999999999972	20250214_170850UTC_V00OS11.WAV