Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
U	36.756248	853.1227249999996	1002.0812749999996	36.124996	37.3875	1.262504000000007	20250306_052017UTC_V00OS11.WAV
U	7.787496	839.5854999999999	1002.0855	7.624996	7.949996	0.3249999999999993	20250306_052017UTC_V00OS11.WAV
U	7.668752	839.583225	988.541775	7.337502	8.000002	0.6625000000000005	20250306_052017UTC_V00OS11.WAV