Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	45.893752	2830.208225	3060.416775	44.7875	47.000004	2.212503999999996	20250416_210435UTC_V00OS11.WAV
O	45.893752	338.5437249999999	487.502275	45.525002	46.262502	0.7374999999999972	20250416_210435UTC_V00OS11.WAV