Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	55.468752	460.4145000000002	663.5395000000002	55.137502000000005	55.800002	0.6624999999999943	20250409_202835UTC_V00OS11.WAV
O	52.068752	257.29177500000003	352.083225	51.525004	52.6125	1.0874960000000016	20250409_202835UTC_V00OS11.WAV
E	50.237496	433.3354999999998	677.0854999999998	49.724996	50.749996	1.0250000000000057	20250409_202835UTC_V00OS11.WAV