Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	15.312496	866.6667750000004	1002.0832250000004	14.724996	15.899996	1.1750000000000007	20250309_210217UTC_V00OS11.WAV
O	53.493752	284.37500000000017	446.87500000000017	53.125002	53.862502	0.7374999999999972	20250309_210217UTC_V00OS11.WAV
O	1.087496	257.2917749999998	433.3332249999999	0.612496	1.562496	0.9499999999999998	20250309_210217UTC_V00OS11.WAV