Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	4.95	1963.543725	2112.502275	3.8875	6.0125	2.125	20250220_163250UTC_V00OS11.WAV
U	8.7312496	1936.456275	2071.872725	8.0000016	9.4624976	1.4624960000000016	20250220_163250UTC_V00OS11.WAV