Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	28.856248	257.29372499999977	446.8772749999998	28.25	29.462496	1.2124960000000016	20250307_185617UTC_V00OS11.WAV
U	31.45	3602.0855	3764.5855	30.9	32.0	1.1000000000000014	20250307_185617UTC_V00OS11.WAV
U	49.181248	1394.7917749999997	1611.458225	48.15	50.212496	2.062495999999996	20250307_185617UTC_V00OS11.WAV