Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	21.75	2857.291775	2992.7082249999994	21.05	22.45	1.3999999999999986	20250213_222050UTC_V00OS11.WAV
D	0.3625	121.87499999999989	975.0	0.2249999999999999	0.5	0.275	20250213_222050UTC_V00OS11.WAV